Title of Invention	ATMOSPHERE HEAT TREATMENT COCATALYST, METHOD OF ITS APPLICATION, HEAT TREATMENT METHOD AND HEAT TREATMENT ATMOSPHERE OF USING THE COCATALYST
Abstract	The present invention provides operation methods of cocatalysts for atmosphere heat treatment. The cocatalyst are dissolved or dispersed into atmosphere material or atmosphere directly or indirectly, and the cocatalyst keep up the form of gas phase or finer dispersion (such as mote) and diffuse into atmosphere in heat treatment equipment or heat treatment gas-producing equipment so that cocatalyst have largest area contact with atmosphere material and atmosphere and playa part of catalysis and activation to the atmosphere in the atmosphere heat treatment. Also the present invention provides a variety kind of cocatalysts for atmosphere heat treatment of metal material and the methods of atmosphere heat treatment.

Title of Invention

ATMOSPHERE HEAT TREATMENT COCATALYST, METHOD OF ITS APPLICATION, HEAT TREATMENT METHOD AND HEAT TREATMENT ATMOSPHERE OF USING THE COCATALYST

Abstract

The present invention provides operation methods of cocatalysts for atmosphere heat treatment. The cocatalyst are dissolved or dispersed into atmosphere material or atmosphere directly or indirectly, and the cocatalyst keep up the form of gas phase or finer dispersion (such as mote) and diffuse into atmosphere in heat treatment equipment or heat treatment gas-producing equipment so that cocatalyst have largest area contact with atmosphere material and atmosphere and playa part of catalysis and activation to the atmosphere in the atmosphere heat treatment. Also the present invention provides a variety kind of cocatalysts for atmosphere heat treatment of metal material and the methods of atmosphere heat treatment.

Full Text	Technology Area The present invention involves in a kind of atmosphere heat treatment cocatalyst and its application. In heat treatment equipment or heat treatment gas-producing equipment the cocatalyst is dispersed into the atmosphere material or atmosphere in the form of a gas phase or finer dispersion (such as mote), or it can release out the substance with similar function of the cocatalyst. The present invention still involves various heat treatment methods using said cocatalyst and said method. Technology background Heat treatment atmosphere, generally refers to heat treatment protection atmosphere and chemical heat treatment atmosphere, consists of H2, N2, CO, a few of CH4, CO2, H20, NH3 as well as unsaturated hydrocarbons. Almost all of carbon compounds can fission or react with water and air in high temperature to create heat treatment atmosphere. Those carbon compound can be heat treatment atmosphere materials such as Methanol, Ethanol, N-butyl Alcohol, Iopropylalcohol, Acetone, Ethyl acetate, Aniline, Toluene, Xylenes, Kerosene, charcoal, Active carbon, Dimethylmethane, Butane, Natural gas, Coal gas, etc. When carbon compound is used as heat treatment atmosphere material, their functions are accordant. When certain carbon are provided and fissioned in high temperature or react with water and air to create a heat treatment atmosphere with H2, N2, CO and a few of CH4, C02, H2O, NH3. Therefore, a kind of material can be replaced by another in practice. In existing technology, mostly employ to aerate atmosphere material with H20, air and Methanol into heat treatment equipment, make use of heat treatment process to create heat treatment atmosphere. Many international and Chinese heat treatment enterprises and heat treatment equipment manufacturers adopt this method. Said method has an advantage of lower investment of the equipment at first time, but as a result of the limitations of the workpiece and heat treatment equipment, higher processing temperatures may not be selected. People have not been discovering a kind of proper method of using catalyst in the equipment condition for long time. So said method exists widely insufficient of atmosphere material fission and more carbon soot because of lower temperature and a lack of cocatalyst, it brings much limitation and negative effect to production and processing control. To solve said problem, many international and Chinese heat treatment enterprises and heat treatment equipment manufacturers adopt a method of increasing a sort of special gas-producing facility outside heat treatment equipment. The special gas-producing facility is filled with a lot of various shapes cocatalysts (accelerant) many holes. The principle of the holes is material has greater contact with the gas so that the atmosphere material to contact with the surface of cocatalyst and be catalyzed in production. Because of the gas-producing facility can be used in the higher processing temperature plus the usage of the catalysis, the problem of carbon soot can be solved at certain degree. At present, some people try to coat the cocatalyst directly on the inside wall of heat treatment equipment contacting with atmosphere material, or to make fixture and inside of furnace in the material with catalyst effect and so on, expects to increase atmosphere fission and decrease carbon soot, however the result is not any better than using gas-producing equipment. No matter what kind of equipment is used or what form of atmosphere is employed, reducing carbon soot is always the dream of the heat treatment experts. Reducing carbon soot brings a great deal of advantage for the production and its processing control. Especially in chemical heat treatment carburizing and carbonitriding, people expect to accelerate carburizing speed and production efficiency or lower processing temperature to improve the quality of heat treatment production in high carbon potential control, but because of the effect of carbon soot, the expectation can be hardly realized (it is easy to create carbon soot in high carbon potential). It is inescapable to created carbon soot even if using of a gas-producing facility in existing technology. Once carbon soot is formed, it would attach on the surface of cocatalysts and obstructs the contact between the atmosphere material and cocatalyst, affects catalysis and makes cocatalysis harder to realize. In addition, cocatalyst (accelerant) has the property of poisoning and aging inescapably during the process;. Further catalyst aging, poisoning or carbon soot on its surface will affect the activation of catalyst, make carbon soot increase, further decrease the catalysis or lose the chance of contacting with atmosphere material as the effect of carbon soot, weaken the activation and the production. Therefore, it is necessary to find out a kind of cocatalyst without the effect of aging, poisoning and carbon soot for heat treatment atmosphere. Invention content The purpose of the present invention is to invent a kind of cocatalyst compound without the effect of aging, poisoning and carbon soot for heat treatment atmosphere and the operation method of cocatalyst so that the cocatalyst play a part of catalysis and activation in heat treatment atmosphere formed by atmosphere material, reduce carbon soot and fulfill protect atmosphere heating and chemical heat treatment carburizing, carbonitnding in higher carbon potential with few carbon soot as well as enhance the efficiency, quality and stability of heat treatment process, decrease process cost. A operation method of the present invention is that cocatalyst is dissolved or dispersed into heat treatment atmosphere material or heat treatment atmosphere, and cocatalyst keep up the form of gas phase or finer dispersion (such as mote) and diffused into atmosphere material and/or atmosphere in heat treatment equipment or heat treatment gas-producing equipment. In a practice of the present invention, the cocatalyst is dissolved or dispersed directly or indirectly into heat treatment atmosphere material or heat treatment atmosphere, and cocatalyst keep up the form of gas phase or finer dispersion (such as mote) and is diffused in atmosphere material and/or atmosphere in heat treatment equipment or heat treatment gas-producing equipment so that cocatalyst has the contact of largest area with atmosphere material and atmosphere, thereby exerting adequately the cocatalysis and activation of cocatalyst. The cocatalysts in the present invention mean to be such compounds that have catalysis to heat treatment atmosphere formed by atmosphere material and activation to heat treatment atmosphere or release a kind of substance with the same function of said substance in the process condition of heat treatment. In the present invention, "finer dispersion" means to be particles or fluid drop that can suspend in heat treatment atmosphere for enough time, wherein experts in this field think "enough time" to be the time of playing a obvious part of catalysis in said reaction, or equivalent time to practical time. An implementary practice in the present invention provides a kind of heat treatment atmosphere cocatalyst. When the cocatalyst is in heat treatment equipment or heat treatment gas-producing equipment, it has a form of gas phase or finer dispersion and diffuses in atmosphere material and /or atmosphere. In a concrete practice of this invention, the cocatalyst exist in the form of gas phase or finer dispersion, diffuse directly in heat treatment atmosphere material or heat treatment atmosphere or the cocatalyst is dissolved or dispersed into a kind or kinds of material as carry agent and is fed into heat treatment equipment or heat treatment gas-producing equipment with carry agent material together. It is worth to say, the present invention has not concrete limitation to atmosphere material, and the atmosphere material can be one or more than one of atmosphere materials. As long as cocatalysts can diffuse in atmosphere material and/or atmosphere with the form of gas phase or finer dispersion in heat treatment equipment or heat treatment gas-producing equipment in heat treatment process, the atmosphere material can be used. The heat treatment atmosphere materials mentioned in present invention mean to be all of atmosphere material as we know, for example, Methanol, Ethanol, N-butyl Alcohol, Isopropylalcohol, Xylenes, Toluene, Aniline, Acetone, Ethyl, Acetate, Kerosene, Methane, Ethane, Dimethylmethane, Butane, RX gas, Natural gas, Coal gas, Nitrogen, or they is added water or air. In the implementary practice in invention, said cocatalyst is directly dissolved, dispersed into heat treatment atmosphere material or heat treatment atmosphere and is aerated into heat treatment equipment or heat treatment gas-producing equipment. In the practice in the present invention, the cocatalyst is dissolved, dispersed into a kind of material as heat treatment atmosphere material in advance to make the compound (carry agent in the text) such as cocatalyst solution. In practice, the compound such as cocatalyst solution is added into heat treatment atmosphere material or cocatalyst solution is input to heat treatment equipment or heat treatment gas-producing equipment with heat treatment atmosphere material together. In implementary practice in the present invention, the cocatalyst is selected from one or arbitrary combination of Compound metal element which takes 0.0003-0.03% weight in heat treatment atmosphere material, optimal selection: 0.0003-0.015%, Compound nitrogen which takes 0.1-10% weight in heat treatment atmosphere material, optimal selection: 0.1- 2%; Compound halogen element which takes 0.1-4% weight in heat treatment atmosphere material, optimal selection: 0.1-1%. Said Compound metal element is selected from one of Cobalt naphthenate, Manganese naphthenate, Nickel nitrate, Manganese nitrate, Ferrocene, Ferrocene ramification, or arbitrary combination. Optimal selection: Ferrocene and/or Ferrocener amification. Said Compound halogen element is selected from one of Chlorobenzene, Trichlorobenzene, Chlorotoluene, Nitrochlorobenzene, Trichloroethylene, Tribromomethane, Iodine, Iodinated Oil, Iodomethane, Freon, Tetrafluoroethylene, or arbitrary combination. Optimal selection: Chlorobenzene, Trichlorobenzene, Chlorotoluene, Nitrochlorobenzene or their combination. Said Compound nitrogen is selected from one of P-Amino-Azobenzene Hydrochloride, Nitrobenzene, Toluene diisocyanate, Nitrochlorobenzene, Trinitrobenzene, Melamine, Tricyanic acid, Dicyandiamide, Guanidine nitrate, Cyclotrimethylene trinitramine , Pyridine, Pyrazole, Pyrazine, or their arbitrary combination. Optimally select from one of P-Amino-Azobenzene Hydrochloride, Nitrobenzene, Toluene diisocyanate, Nitrochlorobenzene, Trinitrobenzene, Guanidine nitrate, Cyclotrimethylene trinitramine, or their arbitrary combination. In a implementary practice of the invention, the compound of rare earths which takes 0.03-3% weight in heat treatment atmosphere material can be added into heat treatment atmosphere material or heat treatment atmosphere. For example, the compound is one of Cerium naphthenates, Lanthanum naphthenates, Cerium nitrate, Lanthanum nitrate, Lanthanum chloride, Cerium chloride, lanthanum fluoride, cerium fluoride, Lanthanum Acetate, Cerium Acetate, or their arbitrary compound. Optimal selection: Lanthanum Acetate, Cerium Acetate, Lanthanum oxide, Cerium oxide or their arbitrary compound, because they are not eroded in atmosphere. According to said Compound metal element, Compound halogen, Compound nitrogen and Compound rare earths, although various concrete example are stated above, but the present invention is not limited to said instances and suits for various chemical with as the similar property as said Compounds. In another implementary practice of atmosphere heat treatment method, one or more than one of said four kinds of cocatalysts respectively are adopted with different dosage. Another purpose in the present invention is to provide an atmosphere heat treatment method of metal material. The method is practiced in the cocatalyst or the active atmosphere of its release substance. The cocatalyst diffuses in the atmosphere in the form of gas or finer dispersion. In an implementary practice of the atmosphere heat treatment in invention, the cocatalyst can be diffused directly into heat treatment atmosphere material or heat treatment atmosphere, or the cocatalyst is dissolved or dispersed into heat treatment atmosphere material in advance to make the admixture such as cocatalyst solution. In usage, the admixture such as cocatalyst solution is added into heat treatment atmosphere material, or is aerated into heat treatment equipment or heat treatment gas-producing equipment with heat treatment atmosphere material together. In an atmosphere heat treatment practice of the present invention, said cocatalyst is used. In an implementary practice of the invention, carburizing and carbonitriding take place in higher carbon potential, optimal selection:0.25 carbon potential, better optimal selection: 0.15 carbon potential, or lower obviously temperature, or shorter obviously time in using said cocatalyst than without said cocatalyst. An implementary practice of the present invention narrates a heat treating method of protection atmosphere. The heat treatment processing takes place in the cocatalyst or the active atmosphere released by the cocatalyst, the cocatalysts diffuse into the said atmosphere in gas phase or finer dispersion. Another purpose in the present invention is to provide a kind of heat treatment atmosphere of metal material. The atmosphere comprise the cocatalyst and its release substance that both are diffused into atmosphere material or atmosphere in gas phase or finer dispersion such as mote (suspending for long time) in heat treatment equipment or heat treatment gas-producing equipment as well as play a catalysis to atmosphere material and activation to the atmosphere in heat treatment process. The invention also provide a kind of method of raising heat treatment atmosphere carbon potential and falling carbon soot, the characteristic consists in adding a kind of or kinds of the cocatalysts into heat treatment atmosphere or atmosphere material. The invention still provides a kind of carburizing, carbonitriding or nitrocarburizing method in heat treatment. The characteristic consists in putting a kind of or kinds of the said cocatalysts in heat treatment atmosphere or atmosphere material. Proper ammonia gas is may aerated in carbonitriding or nitrocarburizing. In the present invention, New cocatalyst come into catalyst surroundings and heat treatment atmosphere with atmosphere material together and participate in the reaction, thereby avoiding the problems of cocatalyst aging, poisoning and the problem caused by carbon soot etc. In the method stated in this invention, said cocatalyst is aerated to the equipment and is blended fully with atmosphere material or atmosphere through atmosphere cycle system, and accordingly achieve the catalysis of largest area. The direct method includes (but does not limits) dispersing cocatalyst into heat treatment atmosphere material and/or atmosphere by various direct mean. For example: 1. The cocatalyst is gasified or atomized by a simple boiling or atomizing system, then is aerated into the heat treatment equipment and heat treatment gas-producing equipment with atmosphere material together, and takes place in the reaction. 2. Put the cocatalyst and atmosphere material into the heat treatment equipment or heat treatment gas-producing equipment together, make the cocatalyst and atmosphere material gasify and take part in the reaction in the high temperature of the equipment. The indirect method includes (but does not limit) diffusing the cocatalyst into heat treatment atmosphere material and/or atmosphere by every indirect means. For example: 1. The cocatalyst is dissolved, dispersed into the atmosphere material or material and are aerated into the equipment together. 2. selected A kind or kinds of materials as carry agents which mat not have negative effect to heat treatment atmosphere or heat treatment process, such as carry agent can be one or more than one of Methanol, Ethanol, Benzene, Toluene, Xylenes, Kerosene, Diesel oil ,N-butylalcohol, Isopropylalcohol, Acetone, Ethyl Acetate, Dimethylmethane, Butane, Rx-gas, Coal gas, Nitrogen or any of them with water or air added, the cocatalyst is dissolved or dispersed into the carrying agent, then they are input to equipment together with atmosphere material. In the method stated in the present invention, the cocatalyst is aerated into the equipment and is blended fully with atmosphere material or atmosphere throughout atmosphere cycle system, accordingly achieving the catalysis of largest contact area. The cocatalyst used in the present invention includes principally four kinds of cocatalysts as follows: 1. All of material that has a catalysis effect in a heat treatment atmosphere formed by an atmosphere material. For example, one or more than one metal element compounds can selected as the cocatalyst from Cobalt naphthenate, Manganese naphthenate, Nickel nitrate, Manganese nitrate, Ferrocene as well as as Ferrocene ramification (such as Tert-butyl Ferrocene, Ferrocenyl methyl ketone, Ferrocenyl ketone, Ferrocene Formic Acid, Butyl Ferrocene etc. Optimal selection: Ferrocene and Ferrocene ramification. The cocatalyst takes 0.0003-0.03% by weight in atmosphere material. Optimal selection: 0.0003-0.015%. 2. A halogen element compound which takes 0.1-4% by weight in atmosphere material, Optimal selection being 0.1-1%. For example, one or more than one of compounds are selected as the cocatalyst from Chlorobenzen, Trichlorobenzene, Chlorotoluen, Nitrochlorobenzene, Trichloroethylene, Tribromomethane, Iodine, Iodinated Oil, IodoMethane, Freon, Tetrafluoroethylene. Optimal selection: Chlorobenzene, Trichlorobenzene, Nitrochlorobenzene. Compound halogen element can release ions at high temperature, and the ions combine with the hydrogen in the atmosphere to create halogenated hydrogen which can activize the surface of the workpiece and speed up chemical heat treatment reaction on the phase interface. In order to control the corrosion of halogenated hydrogen to proper limit, it is better to select lesser dosage. (There are the uses of some of said material in existing technology, but the dosage is big, thereby affect signal measure of carbon potential sensor probe, the application is limited). 3. Compound nitrogen which takes 0.1-10% by weight in atmosphere material, optimal selection: 0.1-2%. For example, one or more than one of compounds are selected as the cocatalyst from P-Amino-Azobenzene Hydrochloride, Nitrochlorobenzene, Nitrobenzene, Trinitrobenzene, Melamine, Tricyanic acid, Dicyandiamide, Guanidine nitrate, Nitrobenzene, Toluene diisocyanate, Cyclotrimethylene trinitramine, Pyridine, Pyrazole, Pyrazine. Optimal selection: P-Amino-Azobenzene Hydrochloride, Nitrobenzene, Toluene diisocyanate, Nitrochlorobenzene, Nitrobenzene, Trinitrobenzene, Guanidine nitrate, Cyclotrimethylene trinitramine. In carburizing and carbonitriding in chemical heat treatment, the cocatalyst releases active nitrogen during heat treatment processing to accelerate each others reactions with the carbon in atmosphere. 4. Using three kinds of said cocatalysts, it is better to add the compound of rare earths which takes 0.03-3% by weight in atmosphere material fed into heat treatment equipment into atmosphere material or atmosphere. One of the compounds can be selected such as from Cerium naphthenates, Lanthanum Naphthenates, Cerium nitrate, Lanthanum Nitrate, Lanthanum chloride, Cerium chloride, Lanthanum fluoride, Cerium fluoride, Lanthanum acetate, Cerium acetate, Lanthanum oxide, or Cerium oxide. Optimal selection: Lanthanum acetate, Cerium acetate, Lanthanum oxide, and Cerium oxide. To optimally select is for decreasing corrosion The present invention is suitable for heat treatment atmosphere producing and heat treatment production. Heat treatment atmosphere comprising H2, N2, CO as well as a few CH4, CO2, H2O and NH3 that are made of atmosphere materially any means. The four kinds of said cocatalysts in the present invention have equivalent function in operation. One or more than one of combination can be used in chemical heat treatment. The compound metal element should be selected mostly in protective atmosphere heating or protective atmosphere producing. Making use of the method stated in the present invention, it can be achieved to raise the gas-producing quantity of heat treatment atmosphere material, reduce carbon soot, lower processing temperature of chemical heat treatment and speed up carburizing, carbonitriding and nitrocarburizing of chemical heat treatment. To make use of the present invention can obtain the achievements as following: 1. Atmosphere material can be fissioned fully, carbon soot is decreased and gas- producing quality tends to be stable in heat treatment. 2. The controllable property and the stability of the heat treatment process is strengthened. 3. It can be leaved out to invest heat treatment atmosphere generator, and atmosphere material and energy sources can be saved. 4. The carbon soot is hardly created at higher atmosphere carbon potential in heat treatment. 5. Lower process temperature in chemical heat treatment by about 50, thereby decrease metallography structure to tend to rough, reduce the distortion of workpiece. 6. Speed up carburizing and carbonitriding more than about 40% in the same process temperature with ordinary chemical heat treatment. Obviously increase efficiency of production, saving electricity cost. Description with reference to drawings. Fig 1 is a sketch that illustrates cocatalyst to be gasified and atomized by the system and entering into heat treatment equipment or heat treatment gas-producing equipment with atmosphere material together. Fig.2 is a sketch that illustrates cocatalyst and atmosphere material entering heat treatment equipment or the heat treatment gas-producing equipment together. Fig.3 is a sketch that illustrates cocatalyst to be dissolved, dispersed into atmosphere material, and aerated into heat treatment equipment with atmosphere material together. Fig.4 is a sketch that illustrates the cocatalyst to be dissolved,dispersed into carry agent and aerated heat treatment equipment or heat treatment gas-producing equipment with atmosphere material together. Example of Practice (method and compound) In the atmosphere material (except Methanol) enumerated below, one kind or kinds of carbon compound can be used as the atmosphere material. The carbon compound are Kerosene, Ethanol, N-butyl alcohol, Isopropylalcohol, Xylenes, Toluene, Acetone, Ethyl acetate, Methane, Ethane, Dimethylmethane, Butane, RX gas, Natural gas, and Coal gas. A. Method and contrast: (hatching part in attached drawing is new content increased in original drawing) 1. Fig.l illustrates cocatalyst to be gasified and atomized by the system and entering into heat treatment equipment or heat treatment gas-producing equipment with atmosphere material together. 2. Fig.2 illustrates cocatalyst and atmosphere material entering into heat treatment equipment or heat treatment gas-producing equipment together. Cocatalyst and atmosphere material are gasified together making use of the high temperature of heat treatment. 3. Fig.3 illustrate cocatalyst to be dissolved, dispersed into atmosphere material, and aerated into heat treatment equipment with atmosphere material together. 4. Fig.4 illustrates selecting a kind of impregnant, which does not have negative effect to heat treatment atmosphere or heat treatment process. Such an impregnant can be selected from below: Methanol, Ethanol, Aniline, Toluene, Xylenes, Kerosene, Kerosene, Ethanol, N-butyl alcohol, Isopropylalcohol, Acetone, Ethyl acetate, Dimethylmethane, Butane, RX gas etc. Cocatalyst is dissolved, dispersed into the impregnant, and are fed into heat treatment equipment with atmosphere material together. 5. In existing technology, the catalyst should be activated in heat treatment gas-producing generator in 30 days, and be changed in about a year, meanwhile it needs to stop the equipment. In the present invention, it should not need to spend extra time to specially activize and change cocatalyst. In original technology, the temperature of gas-producing equipment should be controlled at above 1000 ° C, gas-producing quality can be stable, eligible. Atmosphere keep at the scope CO2 in present invention, the lowest heat treatment temperature can be decreased to about 800 0 C, still gain the same gas-producing quality. a) Natural gas and air are aerated into heat treatment gas-producing equipment filled with Nickel catalyst at 1050 ° C, run successively heat treatment equipment for 35 days. CO2 is 0.43%, CH4 is 0.038% in the atmosphere through measure; run successively heat treatment equipment for 40 days, CO2 is 0.63%; CH4 is 0.1% in the atmosphere. It is shown that the catalyst to be poisoning severely. Taking out the catalyst, the catalyst has been surrounded almost completely. b). Natural gas, air and cocatalyst compound in present invention are aerated into heat treatment gas-producing generator without accelerant at 950 ° C together, and check atmosphere after run successively in 35 days, the C02of the atmosphere is 0.33%, CH4 is 0.03%, after run successively in 45days, the CO2 of the atmosphere is 0.35%, CH4 is 0.03%, after run successively in 60 days, the C02 of the atmosphere is 0.34%, CH4 is 0.03%. 6. In chemical heat treatment with existing technology, the highest carbon potential is less than 1.25% under 920 ° C process temperature, the highest carbon potential is less than 1.15% under 880 ° C process temperature, the highest carbon potential is less than 1.05% under a 850 ° C process temperature, The carbon potential control of oxygen probe will be failure as an effect of carbon soot and the production would not go along. Using the method and cocatalyst of present invention, the higher carbon potential can be increased by about 0.20% and carbon soot is not raised. Refer to table 1. 7. Example: Natural gas and air are aerated into a 90kw pit furnace or a 600 type of multi-furnace, using oxygen probe to control atmosphere carbon potential, turning off auto carbon-burning switch, testing oxygen probe failure time in different temperature carbon potential and in adding and not adding the cocatalyst compound in the present invention. The result is shown in Table 1. 8. Under the 850 ° C condition, Natural gas and air are aerated into a 90kw pit furnace or a 600-type multi-furnace without cocatalyst compound of the present invention. Atmosphere carbon potential is 1.00% with oxygen probe control. After 15 minutes, the oxygen probe seized up. The reason is that much more carbon covered the oxygen probe. Ten samples with the material being No.20, 20Cr, 20CrMnTi (equivalent 8620 AIS1), high 20 mm, diameter 90 mm, were placed respectively in said atmosphere to carry through a Carburizing experiment. The results we discovered through 4 hours of maintaining a temperature are: (1) The carbon thickness attached on the samples reached about 1 mm; (2) Table 1 shows the hardness depth result of three kinds of material. 9. Natural gas and air are aerated into a 90kw pit furnace or a 600 type of multi-furnace respectively under conditions of 920 ° C, 880 ° C, 850 ° C, 830 ° C without the cocatalyst compound of the present invention, using oxygen probe control atmosphere carbon potential. Ten samples with the material being No. 20, 20Cr, 20CrMnTi, diameter 90mm, height 20mm are placed respectively in the atmosphere to carry through a Carburizing experiment. Table 1 shows the Carburizing result with the three kinds of samples after 4 hours of heat preservation. 10. Natural gas, air and cocatalyst compound of present invention are aerated into a 90kw of pit furnace or a 600 type of multi-furnace respectively under conditions of 920 ° C, 880 ° C, 850 ° C, 830 ° c, using oxygen probe control atmosphere carbon potential. Respectively put 10 samples with the material being 20, 20Cr, 20CrMnTi, diameter 90mm, height 20mm into the atmosphere to carry through a Carburizing experiment. The Carburizing results with the three kinds of samples are shown below after 4 hours of heat preservation. 1. There is obviously no carbon soot. 2. The results with three kinds of Carburizing of the samples are shown in Table 1. 11. Natural gas, air and cocatalyst compound of the present invention are aerated into 90kw of pit furnace or a 600 type of multi-furnace together respectively under conditions of 920 ° C, 880 ° C, 850 ° C, 830 ° C, using oxygen probe control atmosphere carbon potential. Respectively put 10 samples with the material being 20, 20Cr, 20CrMnTi, diameter 90mm, height 20mm into atmosphere that is fed with little ammonia gas to carry through a Carburizing experiment. The results with three kinds of Carburizing of the samples after 4 hours of heat preservation are shown below. 1. There is obviously no carbon soot. 2. The results with three kinds of Carburizing of the samples are shown in Table 1. 12. Aerate Natural gas and air into 105kw of pit furnace or 1000 type multi-furnace, carry through the experiment of protect atmosphere heat treatment for 2 hours under conditions of 920 °C, 880 °C , 850 °C , 830 °C . The atmosphere-protecting effect is much better after adding cocatalyst compound of the present invention than before. 13. Aerate Natural gas and air into 105kw of pit furnace or 1000 type of multi-furnace respectively under 920 °C, 880 °C, 850 °C, 830 °C condition, control atmosphere carbon potential as 0.85% using oxygen probe, put respectively 10 samples after carburizing that the material are 20, 20Cr, 20CrMnTi, diameter 90mm, height 20mm to do atmosphere-protecting heating quench experiment for 2 hours. The result is shown that the hardness is higher 1 to 2 degree after adding the cocatalyst compound of the present invention than before, and oxidation decarbonization does not take place. B. The explanation of cocatalyst application 1. The condition, method and result of experiment and contrast in the practice 11, 13, 16, 18, 20, 22, 25, 27 refer to the practice 5, 6, 7, 12. 2. The experiment condition, method, measure result and contrast in other practice refer to the practice 8, 9, 10, and 11. 3. There is an equivalent function in the compound halogen element in the practice below such as Trichlorobenzene, Chlorotoluene, chlorobenzene, Nitrochlorobenzene Carbon tetrachloride, Dichloroethane, Trichloroethane, Trichloroethylene, Ttribromomethane, Iodine, Iodinated Oil, Iodomethane, Freon, and Tetrafluoroethlene. They can be replaced each other in practice. 4. There is an equivalent function in the material such as metal element volatile organic compounds that have catalysis to the atmosphere material in the process of high temperature decomposition and oxidation. The materials below can be replaced with each other. The metal element volatile organic compounds can be Cobalt naphthenate, Manganese naphthenate, Nickel nitrate, Manganese nitrate, Ferrocene as well as Ferrocene ramification (such as Tert-butyl Ferrocene, Ferrocenyl methyl ketone, Ferrocenyl ketone, Ferrocene formic acid, Butyl Ferrocene etc.) 5. There is an equivalent function in the material among the nitrogen volatile organic compounds listed in the practice below. The materials below can be replaced with each other. The nitrogen volatile organic compounds can be P-Amino-Azobenzene Hydrochloride, Nitrochlorobenzene, Nitrobenzene, Trinitrobenzene, Melamine, Tricyanic acid, Dicyandiamide, Guanidine nitrate, Aniline, Toluene diisocyanate, Cyclotrimethylene trinitramine, Pyridine, Pyrazole,Pyrazine, Formamide, Acetamide, Carbamide, Ammonium nitrate etc.. 6. The atmosphere carbon potential can be set up with Methanol, water and air in the practice below. 7. A cheaper inert gas such as nitrogen gas is added to decrease the costs of production, and ammonia gas is aerated to produce carbonitriding in the practice below. C. Examples of the cocatalyst The practice 1 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add 2% weight of Chlorobenzene into Ethyl acetate as the atmosphere material and add Methanol, water and air to set up a carbon potential. The practice 2 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add 1% weight of Trichloroethylene into Methanol as the atmosphere material and add kerosene to set up a carbon potential. The practice 3 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add 4% weight of Chlorotoluene into Methanol as the atmosphere material. The practice 4 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve Dichloroethane into Methanol or other solvent, aerate it into the furnace together with atmosphere material together and control the weight of Dichloroethane to be 0.1% of atmosphere material fed into the furnace using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas, etc. as the atmosphere material. The practice 5 It can accelerate carbonizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to diffuse Freon which takes 2% of weight in the atmosphere material fed into the furnace into the gas phase material and add Methanol, water and air to set up a carbon potential using one of Methane, Ethane, Dimethylmethane, Butane, RX gas, Natural gas and Coal gas, etc. as the atmosphere material. The practice 6 It can accelerate carbonizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cerium flouride (with the double function of rare earth and halogen) which takes 1.3% of weight in the atmosphere material fed into the furnace into Ethanol as the atmosphere material and add Methanol, water and air to set up a carbon potential. The practice 7 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Lanthanum flouride (with the double function of rare earth and halogen) which takes 1.9% of weight in the atmosphere material fed into the furnace into Methanol as the atmosphere material and add kerosene to set up a carbon potential. The practice 8 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add respectively Cerium naphthenates which takes 2% of weight in the atmosphere material fed into the furnace and Trichloroethylene which takes 1% of the atmosphere material into Methanol and Benzene as the atmosphere material. The practice 9 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve Tribromomethane and Lanthanum nitrate into Methanol or other solvent, aerate them into the furnace together with the atmosphere material and control the weight of Tribromomethane to be 1% of the atmosphere material fed into the furnace and the weight of Lanthanum nitrateto to be 0.6% of the atmosphere material using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas, etc. as the atmosphere material. The practice 10 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to diffuse Iodine which takes 1.5% of weight in the atmosphere material fed into the furnace and Cerium naphthenates which takes 1.5% of weight in the atmosphere material into gas phase, aerate them into the furnace with atmosphere material together using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas, etc. as the atmosphere material The practice 11 Add Cobalt naphthenate that takes 0.015% of weight in the atmosphere material fed into the furnace into kerosene as the atmosphere material to make heat treatment atmosphere or process atmosphere heat treatment protection. It can decrease carbon soot and increase gas-producing quantity. The practice 12 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Manganese naphthenate which takes 0.02% weight of the atmosphere material fed into the furnace into Toluene as the atmosphere material and add Methanol, water and air to set up a carbon potential. The practice 13 Add Manganese nitrate that takes 0.01% of weight in the atmosphere material fed into the furnace into Methanol as the atmosphere material to make heat treatment atmosphere or process atmosphere heat treatment protection. It can decrease carbon soot and increase gas-producing quantity. The practice 14 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Nickel nitrate which takes 0.008% weight of the atmosphere material fed into the furnace into Methanol as atmosphere material and add Ethyl acetate to set up a carbon potential. The practice 15 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Ferrocenyl ketone which takes 0.0003% weight of the atmosphere material fed into the furnace into Methanol and Acetone as the atmosphere material. The practice 16 Using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas etc as the atmosphere material, dissolve Cobalt naphthenate into Acetone or other solvent, aerate them into the furnace together with atmosphere material, control the quantity of Cobalt naphthenate to be 0.005% weight of the atmosphere material fed into the furnace, add Methanol, water or air to set up a carbon potential, make heat treatment atmosphere or process atmosphere heat treatment protection. It can decrease carbon soot and increase the atmosphere-producing quantity. The practice 17 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve Nickel nitrate into Methanol or other solvent, aerate it into the furnace together with the atmosphere material, control the quantity of Nickel nitrate to be 0.0008% weight of the atmosphere material fed into the furnace using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas, etc. as the atmosphere material. The practice 18 It can decrease carbon soot, increase gas-producing quantity to diffuse Butyl Ferrocene which takes 0.008% of weight in the atmosphere material fed into the furnace into the gas phase, aerate it into the furnace together with atmosphere material, add Methanol, water or air to set up a carbon potential and make heat treatment atmosphere or process atmosphere heat treatment protection using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas, etc. as the atmosphere material. The practice 19 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to diffuse ferrocenyl methyl ketone which takes 0.004% of weight in the atmosphere material fed into the furnace into the gas phase and aerate it into the furnace together with the atmosphere material using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas etc as the atmosphere material. The practice 20 It can decrease carbon soot, increase gas-producing quantity to add Ferrocenyl ketone which takes 0.03% weight of the atmosphere material fed into the furnace and Lanthanum chloride which takes 3% weight of the atmosphere material into Acetone as the atmosphere material, add Methanol, water or air to set up a carbon potential and make heat treatment atmosphere or process atmosphere heat treatment protection. The practice 21 Cerium chloride it can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Ferrocene formic acid which takes 0.0003% weight of the atmosphere material fed into the furnace and Cerium chloride which takes 2% weight of the atmosphere material into Xylene as the atmosphere material and add Methanol, water or air to set up a carbon potential. The practice 22 It can decrease carbon soot, increase gas-producing quantity to add butyl ferrocene which takes 0.03% weight of the atmosphere material fed into the furnace and Lanthanum nitrate which takes 0.6% weight of the atmosphere material into Methanol as the atmosphere material to make heat treatment atmosphere or process atmosphere heat treatment protection. The practice 23 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cobalt naphthenate which takes 0.002% weight of the atmosphere material fed into the furnace and Cerium nitrate which takes 3% weight of the atmosphere material into Methanol as the atmosphere material and add kerosene to set up a carbon potential. The practice 24 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cobalt naphthenate which takes 0.08% weight of the atmosphere material fed into the furnace and Lanthanum nitrate which takes 0.1% weight of the atmosphere material into Methanol and Ethyl acetate as the atmosphere material. The practice 25 It can decrease carbon soot, increase gas-producing quantity to dissolve Manganese nitrate and Lanthanum naphthenates into Methanol or other solvent, aerate them into the furnace together with atmosphere material and control the weight of Manganese nitrate to be 0.01% of the atmosphere material fed into the furnace and the weight of Lanthanum naphthenates to be 0.5% of the atmosphere material and add Methanol, water or air to set up a carbon potential to make heat treatment atmosphere or process atmosphere heat treatment protection using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas, etc. as the atmosphere material The practice 26 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve Lanthanum acetate and Cerium acetic acid into Methanol or other solvent, aerate them into the furnace together with the atmosphere material and control the weight of Lanthanum acetate to be 0.003% of the atmosphere material fed into the furnace and the weight of Cerium acetic acid to be 1 % of the atmosphere material using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas, etc. as the atmosphere material. The practice 27 It can decrease carbon soot, increase gas-producing quantity to diffuse Ferrocene which takes 0.0015% of weight in the atmosphere material fed into the furnace and Cerium naphthenates which takes 0.3% of weight in the atmosphere material into the gas phase, aerate it into the furnace together with the atmosphere material, add Methanol, water or air to set up a carbon potential to make heat treatment atmosphere or process atmosphere heat treatment protection using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas, etc. as the atmosphere material. The practice 28 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to diffuse ferrocenyl methyl ketone which takes 0.006% weight of the atmosphere material fed into the furnace and Cerium naphthenates which takes 1.5% weight of the atmosphere material into gas phase as the atmosphere material using one of Methane, Ethane, Dimethylmethane, Butane, RX gas, coal gas and Natural gas, etc. as the atmosphere material. The practice 29 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add P-amino-azobenzene hydrochloride which takes 0.002% weight of the atmosphere material fed into the furnace into kerosene as the atmosphere material and add Methanol, water and air to set up a carbon potential. The practice 30 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Pyrazewhich takes 2% weight of the atmosphere material fed into the furnace into Methanol as the atmosphere material and add N-butyl alcohol to set up a carbon potential. The practice 31 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add respectively Cyclotrimethylene trinitramine which takes 1% weight of the atmosphere material fed into the furnace into Methanol and Kerosene as the atmosphere material. The practice 32 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve Acetamide into Methanol or other solvent, aerate it into the furnace together with the atmosphere material, control the quantity of Nickel nitrate to be 6% weight of the atmosphere material fed into the furnace using one of Methane, Ethane, Dimethylmethanemethane, Butane, RX gas and Natural gas, etc. as the atmosphere material. The practice 33 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Formamide which takes 3% weight of the atmosphere material fed into the furnace into gas phase, aerate it into the furnace together with the atmosphere material and add Methanol, water and air to set up a carbon potential. The practice 34 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cerium oxide which takes 2% weight of the atmosphere material fed into the furnace and pyrazole which takes 1 % weight of the atmosphere material into Isopropyl alcohol as atmosphere material, and add Methanol, water and air to set up a carbon potential. The practice 35 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Lanthanum oxide which takes 1.2% weight of the atmosphere material fed into the furnace and melamine which takes 2% weight of the atmosphere material into Methanol as the atmosphere material, and add kerosene to set up a carbon potential. The practice 36 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add respectively Cerium oxide which takes 1% weight of the atmosphere material fed into the furnace and Dicyandiamide which takes 1% weight of the atmosphere material into Methanol and N-butyl alcohol as the atmosphere material. The practice 37 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve Pyridine and Cerium naphthenates into Methanol or other solvent, aerate them into the furnace together with the atmosphere material, control the quantity of Pyridine to be 1% weight of the atmosphere material fed into the furnace and the quantity of Cerium naphthenates to be 0.6% weight of the atmosphere material using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas, etc. as the atmosphere material. The practice 38 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to diffuse Cyclotrimethylene trinitramine which takes 1 % weight of the atmosphere material fed into the furnace and Cerium naphthenates which takes 1% weight of the atmosphere material into gas phase, aerate them into the furnace together with atmosphere material. The practice 39 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cobalt naphthenate which takes 0.003% weight of the atmosphere material fed into the furnace and chlorobenzene which takes 2% weight of the atmosphere material into Ethyl acetate as the atmosphere material, and add Methanol, water and air to set up a carbon potential. The practice 40 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Nickel nitrate which takes 0.006% weight of the atmosphere material fed into the furnace and Trichloroethylene which takes 1% weight of the atmosphere material into Methanol as the atmosphere material, and add kerosene to set up a carbon potential. The practice 41 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add respectively Ferrocene which takes 0.0009% weight of the atmosphere material fed into the furnace and Chlorotoluene which takes 2% weight of the atmosphere material into Methanol and kerosene as the atmosphere material. The practice 42 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve Manganese nitrate and Dichloroethane into Methanol or other solvent, aerate them into the furnace together with atmosphere material, control the quantity of Manganese nitrate to be 0.01% weight of the atmosphere material fed into the furnace and the quantity of Dichloroethane to be 1% weight of the atmosphere material using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas, etc. as the atmosphere material. The practice 43 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to diffuse Ferrocene which takes 0.006% weight of the atmosphere material fed into the furnace and Freon which takes 2% weight of the atmosphere material into gas phase, aerate them into the furnace together with the atmosphere material, and add Methanol, water and air to set up a carbon potential. The practice 44 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cobalt naphthenate takes 0.009% weight of the atmosphere material fed into the furnace, Cerium naphthenates which takes 1% weight of the atmosphere material and Nitrochlorobenzene which takes 2% weight of the atmosphere material into Ethanol as the atmosphere material, and add Methanol, water and air to set up a carbon potential. The practice 45 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cobalt naphthenate takes 0.07% weight of the atmosphere material fed into the furnace, Lanthanum nitrate which takes 0.9% weight of the atmosphere material and Trichloroethane which takes 2% weight of the atmosphere material into Methanol as the atmosphere material, and add Methanol, water and air to set up a carbon potential. The practice 46 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Ferrocene takes 0.001% weight of the atmosphere material fed into the furnace, Cerium naphthenates which takes 2% weight of the atmosphere material and Trichloroethylene which takes 1% weight of the atmosphere material into Methanol as the atmosphere material. The practice 47 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve Manganese naphthenate, Ttribromomethane , and Lanthanum nitrate into Methanol or other solvent, aerate them into the furnace together with the atmosphere material, control the quantity of Manganese naphthenate to be 0.006% weight of the atmosphere material fed into the furnace, the quantity of Tribromomethanemethane to be 1% weight of the atmosphere material and the quantity of Lanthanum nitrate to be 0.6% weight of the atmosphere material using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas, etc. as the atmosphere material. The practice 48 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to diffuse Ferrocene which takes 0.006% weight of the atmosphere material fed into the furnace, Iodine which takes 1.5% weight of the atmosphere material and Cerium naphthenates which takes 1% weight of the atmosphere material into the gas phase, aerate them into the furnace together with atmosphere material. The practice 49 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Iodinated Oil takes 1% weight of the atmosphere material fed into the furnace and Guanidine nitrate which takes 2% weight of the atmosphere material into Methanol as the atmosphere material, add Methanol, water and air to set up a carbon potential. The practice 50 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Ttribromomethane takes 2% weight of the atmosphere material fed into the furnace and Nitrobenzene which takes 1% weight of the atmosphere material into Methanol as the atmosphere material, add Kerosene to set up a carbon potential. The practice 51 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add respectively Iodomethane takes 2% weight of the atmosphere material fed into the furnace and Tricyanic acid which takes 1% weight of the atmosphere material into Methanol and Kerosene as the atmosphere material. The practice 52 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve Tetrafluoroethylene and Tricyanic acid into Methanol or other solvent, aerate them into the furnace with the atmosphere material together, control the quantity of tetrafluoroethylene to be 2% weight of the atmosphere material fed into the furnace and the quantity of tricyanic acid to be 1 % weight of the atmosphere material using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas, etc. as the atmosphere material. The practice 53 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to diffuse Carbon tetrachloride which takes 2% weight of the atmosphere material fed into the furnace and Toluene diisocyanate which takes 3% weight of the atmosphere material into gas phase, aerate them into the furnace together with the atmosphere material, and add Methanol, water and air to set up a carbon potential. The practice 54 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Lanthanum naphthenates which takes 2% weight of the atmosphere material fed into the furnace, Iodinated Oil which takes 2% weight of the atmosphere material and Nitrochlorobenzene which takes 1% weight of the atmosphere material into gas phase, aerate them into the furnace together with the atmosphere material, and add Methanol, water and air to set up carbon potential. The practice 55 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cerium chloride (with the double function of rare earth and halogen) which takes 1.6% of weight in the atmosphere material fed into the furnace and Nitrobenzene which takes 1% of weight in the atmosphere material into Methanol as atmosphere material and add kerosene to set up a carbon potential. The practice 56 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add respectively Lanthanum naphthenates which takes 1.6% of weight in the atmosphere material fed into the furnace and Nitrochlorobenzene (with double function of rare earth and halogen) which takes 1% of weight in the atmosphere material into Methanol as the atmosphere material. The practice 57 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve Carbon tetrachloride, Pyridine and Cerium naphthenates into Methanol or other solvent, aerate them into the furnace together with atmosphere material, control the quantity of Carbon tetrachloride to be 1 % weight of the atmosphere material fed into the furnace, the quantity of Pyridine to be 1 % weight of the atmosphere material and the quantity of Cerium naphthenates to be 0.2% weight of the atmosphere material using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas, etc. as the atmosphere material. The practice 58 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to diffuse Iodomethane which takes 1.1% weight of the atmosphere material fed into the furnace, Freon which takes 2% weight of the atmosphere material and Cerium naphthenates which takes 0.1% weight of the atmosphere material into gas phase, aerate them into the furnace together with atmosphere material, and add Methanol, water and air to set up a carbon potential. The practice 59 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cobalt naphthenate which takes 0.002% weight of the atmosphere material fed into the furnace and P-amino-azobenzene hydrochloride which takes 2% weight of the atmosphere material into kerosene as the atmosphere material, add Methanol, water and air to set up a carbon potential. The practice 60 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cobalt naphthenate which takes 0.02% weight of the atmosphere material fed into the furnace and Pyrazine which takes 2% weight of the atmosphere material into Methanol as the atmosphere material, add N-butyl alcohol to set up a carbon potential. The practice 61 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add respectively Ferrocene ramification which takes 0.0009% of weight in the atmosphere material fed into the furnace and Cyclotrimethylene trinitramine which takes 1% of weight in the atmosphere material into Methanol and Kerosene as the atmosphere material. The practice 62 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve Manganese nitrate and acetamide into Methanol or other solvent, aerate them into the furnace together with the atmosphere material, control the quantity of Manganese nitrate to be 0.006% weight of the atmosphere material fed into the furnace and the quantity of Acetamide to be 2% weight of the atmosphere material using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas etc. as the atmosphere material. The practice 63 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to diffuse Ferrocenyl methyl ketone which takes 0.006% weight of the atmosphere material fed into the furnace and Formamide which takes 1 % weight of the atmosphere material into gas phase, aerate them into the furnace together with the atmosphere material, and add Methanol, water and air to set up a carbon potential. The practice 64 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cobalt naphthenate which takes 0.002% weight of the atmosphere material fed into the furnace, Cerium nitrate which takes 2% weight of the atmosphere material and Pyrazole which takes 1% weight of the atmosphere material into Isopropyl alcohol as the atmosphere material, add Methanol, water and air to set up a carbon potential. The practice 65 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cobalt naphthenate which takes 0.02% weight of the atmosphere material fed into the furnace, Lanthanum nitrate which takes 1.2% weight of the atmosphere material and Melamine which takes 2% weight of the atmosphere material into Methanol as the atmosphere material, add kerosene to set up a carbon potential. The practice 66 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add respectively Ferrocene formic acid which takes 0.0009% weight of the atmosphere material fed into the furnace, Cerium naphthenates which takes 1% weight of the atmosphere material and Dicyandiamide which takes 1% weight of the atmosphere material into Methanol and N-butyl alcohol as the atmosphere material. The practice 67 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve Manganese nitrate, Pyridine and Cerium naphthenates into Methanol or other solvent, aerate them into the furnace with the atmosphere material together, control the quantity of Manganese nitrate to be 0.02% weight of the atmosphere material fed into the furnace, the quantity of Pyridine to be 1% weight of the atmosphere material and the quantity of Cerium naphthenates to be 0.6% weight of the atmosphere material using one of Methane, Ethane, Dimethylmethane,Butane,RX gas and Natural gas etc. as the atmosphere material. The practice 68 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to diffuse Tert-butyl ferrocene which takes 0.006% weight of the atmosphere material fed into the furnace, Guanidine nitrate which takes 1% weight of the atmosphere material and Cerium naphthenates which takes 1 % weight of the atmosphere material into gas phase, aerate them into the furnace together with atmosphere material together. The practice 69 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cobalt naphthenate which takes 0.003% weight of the atmosphere material fed into the furnace, Iodinated Oil which takes 1% weight of the atmosphere material and Guanidine nitrate which takes 2% weight of the atmosphere material into acetone as the atmosphere material, add Methanol, water and air to set up a carbon potential. The practice 70 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cobalt naphthenate which takes 0.002% weight of the atmosphere material fed into the furnace, Ttribromomethane which takes 2% weight of the atmosphere material and Nitrobenzene which takes 1% weight of the atmosphere material into Methanol as atmosphere material, add kerosene to set up a carbon potential. The practice 71 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add respectively Ferrocene which takes 0.004% weight of the atmosphere material fed into the furnace, Iodomethane which takes 2% weight of the atmosphere material and tricyanic acid which takes 1% weight of the atmosphere material into Methanol and kerosene as atmosphere material. The practice 72 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve Manganese nitrate, tetrafluoroethylene and tricyanic acid into Methanol or other solvent, aerate them into the furnace with atmosphere material together, control the quantity of Manganese nitrate to be 0.006% weight of the atmosphere material fed into the furnace, the quantity of Tetrafluoroethylene to be 2% weight of the atmosphere material and the quantity of tricyanic acid to be 1 % weight of the atmosphere material using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas etc. as the atmosphere material. The practice 73 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to diffuse Manganese naphthenate which takes 0.003% weight of the atmosphere material fed into the furnace, toluene which takes 2% weight of the atmosphere material and Toluene diisocyanate which takes 3% weight of the atmosphere material into gas phase, aerate them into the furnace together with atmosphere material, and add Methanol, water and air to set up a carbon potential. The practice 74 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cobalt naphthenate which takes 0.003% weight of the atmosphere material fed into the furnace, Lanthanum naphthenates which takes 2% weight of the atmosphere material and Trichlorobenzene which takes 0.004% weight of the atmosphere material into kerosene as atmosphere material, add Methanol, water and air to set up a carbon potential or add ammonia gas. The practice 75 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cobalt naphthenate takes 0.02% weight of the atmosphere material fed into the furnace, Cerium chloride (instead of rare earth and halogen) which takes 1% weight of the atmosphere material and Nitrobenzene which takes 1% weight of the atmosphere material into Methanol as atmosphere material, add kerosene to set up a carbon potential. The practice 76 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Butyl ferrocene which takes 0.0009% weight of the atmosphere material fed into the furnace, Lanthanum naphthenates which takes 2% weight of the atmosphere material, Carbon tetrachloride which takes 2% weight of the atmosphere material and Trinitrobenzene which takes 1% weight of the atmosphere material into Methanol and Kerosene as atmosphere material, add Methanol ,water and air to set up a carbon potential. The practice 77 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve Manganese nitrate, Carbon tetrachloride, Pyridine and Cerium naphthenates into Methanol or other solvent, aerate them into the furnace together with atmosphere material, control the quantity of Manganese nitrate to be 0.01% weight of the atmosphere material fed into the furnace, the quantity of Carbon tetrachloride to be 1% weight of the atmosphere material, the quantity of Pyridine to be 1% weight of the atmosphere material, the quantity of Cerium naphthenates to be 0.2% weight of the atmosphere material using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas etc. as the atmosphere material. The practice 78 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to diffuse Butyl Ferrocene which takes 0.006% weight of the atmosphere material fed into the furnace, Iodomethane which takes 1.1% weight of the atmosphere material, Freon which takes 2% weight of the atmosphere material and Cerium naphthenates which takes 0.1% weight of the atmosphere material into gas phase, aerate them into the furnace together with the atmosphere material. The practice 79 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to diffuse Butyl Ferrocene which takes 0.006% weight of the atmosphere material fed into the furnace, P-Amino-Azobenzene Hydrochloride which takes 1 % weight of the atmosphere material, Freon which takes 2% weight of the atmosphere material and Cerium naphthenates which takes 0.1% weight of the atmosphere material into gas phase, aerate them into the furnace together with the atmosphere material which is one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas etc. as. The practice 80 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add the Chlorobenzene which takes 2% weight of the atmosphere material fed into the furnace into Ethyl acetate as the atmosphere material, adding Methanol, Water and Air to set up a carbon potential. The practice 81 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add the Iodomethane which takes 2% weight of the atmosphere material fed into the furnace and Ammonium nitrate which takes 1 % weight of the atmosphere material into Methanol and Kerosene as the atmosphere material. The practice 82 It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve the Tetrafluoroethylene and Carbamide into Methanol or other solvent, aerate them into the furnace together with the atmosphere material, control the quantity of Tetrafluoroethylene to be 2% weight of the atmosphere material fed into the furnace and the quantity of Carbamide to be 1% weight of the atmosphere material using one of Methane, Ethane, Dimethylmethane, Butane,RX gas as the atmosphere material. 1 claim: 1. An operation method using heat treatment atmosphere cocatalyst characterized in that the cocatalyst is dissolved or dispersed into heat treatment atmosphere material and atmosphere, and the cocatalyst maintain the form of gas phase or finer dispersion and diffuse into atmosphere in the heat treatment equipment or heat treatment gas-producing equipment. 2. The method according to claim 1 wherein the cocatalyst is diffused directly into heat treatment atmosphere material or heat treatment atmosphere in the form of gas phase or finer dispersion, or it is dissolved or dispersed into a heat treatment atmosphere material as carry material, and is fed into heat treatment equipment or heat treatment gas-producing equipment with atmosphere material together. 3. A heat treatment atmosphere cocatalyst characterized in that the cocatalyst keep in the form of gas phase or finer dispersion and diffuse into atmosphere material or atmosphere in heat treatment equipment or heat treatment gas-producing equipment. 4. The heat treatment atmosphere cocatalyst according to claim 3 wherein the cocatalyst is dispersed directly into heat treatment atmosphere material or heat treatment atmosphere in the form of gas phase or finer dispersion, or the cocatalyst is dissolved or dispersed into a carry material, then they are fed into heat treatment atmosphere material together in heat treatment equipment or gas-producing equipment. 5. The heat treatment atmosphere cocatalyst according to claim3 or 4 wherein the cocatalyst is selected from Compound halogen element which takes 0.1—4% weight in heat treatment atmosphere material, optimal selection: 0.1—1%; Compound metal element which takes 0.0003—0.03% weight in heat treatment atmosphere material, optimal selection: 0.0003—0.015%; Compound nitrogen which takes 0.1—10% weight in heat treatment atmosphere material, optimal selection 0.1—2%; Or said arbitrary combination. Wherein, the Compound metal element is selected from one or arbitrary combination of Cobalt naphthenate. Manganese naphthenate, Nickel nitrate. Manganese nitrate. Ferrocene as well as Ferrocene ramification, optimal selection: Ferrocene, Ferrocene ramification; Said Compound halogen element selected from one or their combination of Chlorobenzene, Trichlorobenzene, Chlorotoluene, Nitrochlorobenzene, Trichloroethylene, Ribromomethane, Iodine, lodinated oil, lodomethane, Freon, Tetrafluoroethylene. Optimal selection: Chlorobenzene, Trichlorobenzene, Chlorotoluene, Nitrochlorobenzene, or their combination. Said Compound nitrogen selected from one or arbitrary combination of P-Amino-Azobenzene Hydrochloride, Nitrobenzene, Toluene diisocyanate. Nitrochlorobenzene, Nitrobenzene, Trinitrobenzene, Melamine, Tricyanic acid, Dicyandiamide, Guanidine nitrate, Cyclotrimethylenetrinitramine, Pyridine, Pyrazol, Pyrazine. Optimal selection: P-Amino-Azobenzene Hydrochloride, Nitrobenzene, Toluene diisocyanate, Nitrochlorobenzene, Nitrobenzene, Trinitrobenzene, Guanidinenitrate, Cyclotrimethylenetrinitramine or their arbitrary combination. 6. The heat treatment atmosphere cocatalyst according to claim 3 or 4 wherein compound of rare earths is added which takes 0.1-3% weight in atmosphere material into heat treatment atmosphere or atmosphere material, such as Cerium naphthenates. Lanthanum naphthenates, Cerium Nitrate, Lanthanum nitrate. Lanthanum chloride, Cerium chloride, lanthanum fluoride, Cerium fluoride. Optimal selection: Lanthanum Acetate, Cerium Acetate, Lanthanum Oxide, Cerium Oxide or their arbitrary compound. 7. A method of atmosphere heat treatment of metal material wherein the method includes heat treating metal material in the atmosphere with cocatalyst or the active atmosphere produced by the cocatalyst characterized in that said cocatalyst is diffused into atmosphere in the form of gas phase or finer dispersion, and releasing out active substance. 8. The method of atmosphere heat treatment according to claim 7 wherein the cocatalyst being dispersed directly into heat treatment atmosphere material or heat treatment atmosphere in the form of gas phase or finer dispersion. Or said cocatalyst being dissolved or dispersed into a heat treatment atmosphere material as carry material, and fed into heat treatment gas-producing equipment or heat treatment equipment with carry material together. 9. The method of atmosphere heat treatment as claimed in claim7 wherein the cocatalyst is the cocotalyst as claimed in claim5 or 6. 10. The method of atmosphere heat treatment in claims 7 to 9 wherein using the cocatalyst, carburizing or carbonitrding can be processed by raising a higher carbon potential, optimal selection:0.25 carbon potential, better optimal selection:0.15 carbon potential, or in lower temperature, or in short time than without said cocatalyst. 11. A metal material heat treatment atmosphere wherein the atmosphere includes a kind of material cocatalyst which is diffused into said atmosphere in the form of gas phase or finer dispersion and release a kind of material which play a part catalysis and activation to said atmosphere in heat treatment gas-producing equipment or heat treatment equipment and said cocatalyst is selected from the cocatalyst as claimed in claim3 or 4. 12. A method raising carbon potential and/or decreasing the generation of carbon soot, or lowering process temperature in the atmosphere heat treatment of metal material characterized by adding the cocatalyst as claimed in claims 3 to 6 into heat treatment atmosphere or heat treatment atmosphere material.

Full Text

Technology Area
The present invention involves in a kind of atmosphere heat treatment cocatalyst and its application. In heat treatment equipment or heat treatment gas-producing equipment the cocatalyst is dispersed into the atmosphere material or atmosphere in the form of a gas phase or finer dispersion (such as mote), or it can release out the substance with similar function of the cocatalyst. The present invention still involves various heat treatment methods using said cocatalyst and said method.
Technology background
Heat treatment atmosphere, generally refers to heat treatment protection atmosphere and chemical heat treatment atmosphere, consists of H2, N2, CO, a few of CH4, CO2, H20, NH3 as well as unsaturated hydrocarbons.
Almost all of carbon compounds can fission or react with water and air in high temperature to create heat treatment atmosphere. Those carbon compound can be heat treatment atmosphere materials such as Methanol, Ethanol, N-butyl Alcohol, Iopropylalcohol, Acetone, Ethyl acetate, Aniline, Toluene, Xylenes, Kerosene, charcoal, Active carbon, Dimethylmethane, Butane, Natural gas, Coal gas, etc.
When carbon compound is used as heat treatment atmosphere material, their functions are accordant. When certain carbon are provided and fissioned in high temperature or react with water and air to create a heat treatment atmosphere with H2, N2, CO and a few of CH4, C02, H2O, NH3. Therefore, a kind of material can be replaced by another in practice.
In existing technology, mostly employ to aerate atmosphere material with H20, air and Methanol into heat treatment equipment, make use of heat treatment process to create heat treatment atmosphere. Many international and Chinese heat treatment enterprises and heat treatment equipment manufacturers adopt this method.
Said method has an advantage of lower investment of the equipment at first time, but as a result of the limitations of the workpiece and heat treatment equipment, higher processing temperatures may not be selected. People have not been discovering a kind of proper method of using catalyst in the equipment condition for long time. So said method exists widely insufficient of atmosphere material fission and more carbon soot because of lower temperature and a lack of cocatalyst, it brings much limitation and negative effect to production and processing control.
To solve said problem, many international and Chinese heat treatment enterprises and heat treatment equipment manufacturers adopt a method of increasing a sort of special gas-producing facility outside heat treatment equipment. The special gas-producing

facility is filled with a lot of various shapes cocatalysts (accelerant) many holes. The principle of the holes is material has greater contact with the gas so that the atmosphere material to contact with the surface of cocatalyst and be catalyzed in production.
Because of the gas-producing facility can be used in the higher processing temperature plus the usage of the catalysis, the problem of carbon soot can be solved at certain degree.
At present, some people try to coat the cocatalyst directly on the inside wall of heat treatment equipment contacting with atmosphere material, or to make fixture and inside of furnace in the material with catalyst effect and so on, expects to increase atmosphere fission and decrease carbon soot, however the result is not any better than using gas-producing equipment.
No matter what kind of equipment is used or what form of atmosphere is employed, reducing carbon soot is always the dream of the heat treatment experts. Reducing carbon soot brings a great deal of advantage for the production and its processing control. Especially in chemical heat treatment carburizing and carbonitriding, people expect to accelerate carburizing speed and production efficiency or lower processing temperature to improve the quality of heat treatment production in high carbon potential control, but because of the effect of carbon soot, the expectation can be hardly realized (it is easy to create carbon soot in high carbon potential).
It is inescapable to created carbon soot even if using of a gas-producing facility in existing technology. Once carbon soot is formed, it would attach on the surface of cocatalysts and obstructs the contact between the atmosphere material and cocatalyst, affects catalysis and makes cocatalysis harder to realize.
In addition, cocatalyst (accelerant) has the property of poisoning and aging inescapably during the process;.
Further catalyst aging, poisoning or carbon soot on its surface will affect the activation of catalyst, make carbon soot increase, further decrease the catalysis or lose the chance of contacting with atmosphere material as the effect of carbon soot, weaken the activation and the production. Therefore, it is necessary to find out a kind of cocatalyst without the effect of aging, poisoning and carbon soot for heat treatment atmosphere.
Invention content
The purpose of the present invention is to invent a kind of cocatalyst compound without the effect of aging, poisoning and carbon soot for heat treatment atmosphere and the operation method of cocatalyst so that the cocatalyst play a part of catalysis and activation in heat treatment atmosphere formed by atmosphere material, reduce carbon soot and fulfill protect atmosphere heating and chemical heat treatment carburizing,

carbonitnding in higher carbon potential with few carbon soot as well as enhance the efficiency, quality and stability of heat treatment process, decrease process cost.
A operation method of the present invention is that cocatalyst is dissolved or dispersed into heat treatment atmosphere material or heat treatment atmosphere, and cocatalyst keep up the form of gas phase or finer dispersion (such as mote) and diffused into atmosphere material and/or atmosphere in heat treatment equipment or heat treatment gas-producing equipment. In a practice of the present invention, the cocatalyst is dissolved or dispersed directly or indirectly into heat treatment atmosphere material or heat treatment atmosphere, and cocatalyst keep up the form of gas phase or finer dispersion (such as mote) and is diffused in atmosphere material and/or atmosphere in heat treatment equipment or heat treatment gas-producing equipment so that cocatalyst has the contact of largest area with atmosphere material and atmosphere, thereby exerting adequately the cocatalysis and activation of cocatalyst.
The cocatalysts in the present invention mean to be such compounds that have catalysis to heat treatment atmosphere formed by atmosphere material and activation to heat treatment atmosphere or release a kind of substance with the same function of said substance in the process condition of heat treatment.
In the present invention, "finer dispersion" means to be particles or fluid drop that can suspend in heat treatment atmosphere for enough time, wherein experts in this field think "enough time" to be the time of playing a obvious part of catalysis in said reaction, or equivalent time to practical time.
An implementary practice in the present invention provides a kind of heat treatment atmosphere cocatalyst. When the cocatalyst is in heat treatment equipment or heat treatment gas-producing equipment, it has a form of gas phase or finer dispersion and diffuses in atmosphere material and /or atmosphere. In a concrete practice of this invention, the cocatalyst exist in the form of gas phase or finer dispersion, diffuse directly in heat treatment atmosphere material or heat treatment atmosphere or the cocatalyst is dissolved or dispersed into a kind or kinds of material as carry agent and is fed into heat treatment equipment or heat treatment gas-producing equipment with carry agent material together.
It is worth to say, the present invention has not concrete limitation to atmosphere material, and the atmosphere material can be one or more than one of atmosphere materials. As long as cocatalysts can diffuse in atmosphere material and/or atmosphere with the form of gas phase or finer dispersion in heat treatment equipment or heat treatment gas-producing equipment in heat treatment process, the atmosphere material can be used.

The heat treatment atmosphere materials mentioned in present invention mean to be all of atmosphere material as we know, for example, Methanol, Ethanol, N-butyl Alcohol, Isopropylalcohol, Xylenes, Toluene, Aniline, Acetone, Ethyl, Acetate, Kerosene, Methane, Ethane, Dimethylmethane, Butane, RX gas, Natural gas, Coal gas, Nitrogen, or they is added water or air.
In the implementary practice in invention, said cocatalyst is directly dissolved, dispersed into heat treatment atmosphere material or heat treatment atmosphere and is aerated into heat treatment equipment or heat treatment gas-producing equipment.
In the practice in the present invention, the cocatalyst is dissolved, dispersed into a kind of material as heat treatment atmosphere material in advance to make the compound (carry agent in the text) such as cocatalyst solution. In practice, the compound such as cocatalyst solution is added into heat treatment atmosphere material or cocatalyst solution is input to heat treatment equipment or heat treatment gas-producing equipment with heat treatment atmosphere material together.
In implementary practice in the present invention, the cocatalyst is selected from one or arbitrary combination of Compound metal element which takes 0.0003-0.03% weight in heat treatment atmosphere material, optimal selection: 0.0003-0.015%, Compound nitrogen which takes 0.1-10% weight in heat treatment atmosphere material, optimal selection: 0.1- 2%; Compound halogen element which takes 0.1-4% weight in heat treatment atmosphere material, optimal selection: 0.1-1%.
Said Compound metal element is selected from one of Cobalt naphthenate, Manganese naphthenate, Nickel nitrate, Manganese nitrate, Ferrocene, Ferrocene ramification, or arbitrary combination. Optimal selection: Ferrocene and/or Ferrocener amification.
Said Compound halogen element is selected from one of Chlorobenzene,
Trichlorobenzene, Chlorotoluene, Nitrochlorobenzene, Trichloroethylene,
Tribromomethane, Iodine, Iodinated Oil, Iodomethane, Freon, Tetrafluoroethylene, or arbitrary combination. Optimal selection: Chlorobenzene, Trichlorobenzene, Chlorotoluene, Nitrochlorobenzene or their combination.
Said Compound nitrogen is selected from one of P-Amino-Azobenzene Hydrochloride, Nitrobenzene, Toluene diisocyanate, Nitrochlorobenzene, Trinitrobenzene, Melamine, Tricyanic acid, Dicyandiamide, Guanidine nitrate, Cyclotrimethylene trinitramine , Pyridine, Pyrazole, Pyrazine, or their arbitrary combination. Optimally select from one of P-Amino-Azobenzene Hydrochloride, Nitrobenzene, Toluene diisocyanate, Nitrochlorobenzene, Trinitrobenzene, Guanidine nitrate, Cyclotrimethylene trinitramine, or their arbitrary combination.

In a implementary practice of the invention, the compound of rare earths which takes 0.03-3% weight in heat treatment atmosphere material can be added into heat treatment atmosphere material or heat treatment atmosphere. For example, the compound is one of Cerium naphthenates, Lanthanum naphthenates, Cerium nitrate, Lanthanum nitrate, Lanthanum chloride, Cerium chloride, lanthanum fluoride, cerium fluoride, Lanthanum Acetate, Cerium Acetate, or their arbitrary compound. Optimal selection: Lanthanum Acetate, Cerium Acetate, Lanthanum oxide, Cerium oxide or their arbitrary compound, because they are not eroded in atmosphere.
According to said Compound metal element, Compound halogen, Compound nitrogen and Compound rare earths, although various concrete example are stated above, but the present invention is not limited to said instances and suits for various chemical with as the similar property as said Compounds.
In another implementary practice of atmosphere heat treatment method, one or more than one of said four kinds of cocatalysts respectively are adopted with different dosage.
Another purpose in the present invention is to provide an atmosphere heat treatment method of metal material. The method is practiced in the cocatalyst or the active atmosphere of its release substance. The cocatalyst diffuses in the atmosphere in the form of gas or finer dispersion.
In an implementary practice of the atmosphere heat treatment in invention, the cocatalyst can be diffused directly into heat treatment atmosphere material or heat treatment atmosphere, or the cocatalyst is dissolved or dispersed into heat treatment atmosphere material in advance to make the admixture such as cocatalyst solution. In usage, the admixture such as cocatalyst solution is added into heat treatment atmosphere material, or is aerated into heat treatment equipment or heat treatment gas-producing equipment with heat treatment atmosphere material together. In an atmosphere heat treatment practice of the present invention, said cocatalyst is used. In an implementary practice of the invention, carburizing and carbonitriding take place in higher carbon potential, optimal selection:0.25 carbon potential, better optimal selection: 0.15 carbon potential, or lower obviously temperature, or shorter obviously time in using said cocatalyst than without said cocatalyst.
An implementary practice of the present invention narrates a heat treating method of protection atmosphere. The heat treatment processing takes place in the cocatalyst or the active atmosphere released by the cocatalyst, the cocatalysts diffuse into the said atmosphere in gas phase or finer dispersion.
Another purpose in the present invention is to provide a kind of heat treatment atmosphere of metal material. The atmosphere comprise the cocatalyst and its release

substance that both are diffused into atmosphere material or atmosphere in gas phase or finer dispersion such as mote (suspending for long time) in heat treatment equipment or heat treatment gas-producing equipment as well as play a catalysis to atmosphere material and activation to the atmosphere in heat treatment process.
The invention also provide a kind of method of raising heat treatment atmosphere carbon potential and falling carbon soot, the characteristic consists in adding a kind of or kinds of the cocatalysts into heat treatment atmosphere or atmosphere material.
The invention still provides a kind of carburizing, carbonitriding or nitrocarburizing method in heat treatment. The characteristic consists in putting a kind of or kinds of the said cocatalysts in heat treatment atmosphere or atmosphere material. Proper ammonia gas is may aerated in carbonitriding or nitrocarburizing.
In the present invention, New cocatalyst come into catalyst surroundings and heat treatment atmosphere with atmosphere material together and participate in the reaction, thereby avoiding the problems of cocatalyst aging, poisoning and the problem caused by carbon soot etc.
In the method stated in this invention, said cocatalyst is aerated to the equipment and is blended fully with atmosphere material or atmosphere through atmosphere cycle system, and accordingly achieve the catalysis of largest area.
The direct method includes (but does not limits) dispersing cocatalyst into heat treatment atmosphere material and/or atmosphere by various direct mean. For example:
1. The cocatalyst is gasified or atomized by a simple boiling or atomizing system, then is aerated into the heat treatment equipment and heat treatment gas-producing equipment with atmosphere material together, and takes place in the reaction.
2. Put the cocatalyst and atmosphere material into the heat treatment equipment or heat treatment gas-producing equipment together, make the cocatalyst and atmosphere material gasify and take part in the reaction in the high temperature of the equipment.
The indirect method includes (but does not limit) diffusing the cocatalyst into heat treatment atmosphere material and/or atmosphere by every indirect means. For example:
1. The cocatalyst is dissolved, dispersed into the atmosphere material or material and are aerated into the equipment together.
2. selected A kind or kinds of materials as carry agents which mat not have negative effect to heat treatment atmosphere or heat treatment process, such as carry agent can be one or more than one of Methanol, Ethanol, Benzene, Toluene, Xylenes, Kerosene, Diesel oil ,N-butylalcohol, Isopropylalcohol, Acetone, Ethyl Acetate, Dimethylmethane, Butane,

Rx-gas, Coal gas, Nitrogen or any of them with water or air added, the cocatalyst is dissolved or dispersed into the carrying agent, then they are input to equipment together with atmosphere material.
In the method stated in the present invention, the cocatalyst is aerated into the equipment and is blended fully with atmosphere material or atmosphere throughout atmosphere cycle system, accordingly achieving the catalysis of largest contact area.
The cocatalyst used in the present invention includes principally four kinds of cocatalysts as follows:
1. All of material that has a catalysis effect in a heat treatment atmosphere formed by an atmosphere material. For example, one or more than one metal element compounds can selected as the cocatalyst from Cobalt naphthenate, Manganese naphthenate, Nickel nitrate, Manganese nitrate, Ferrocene as well as as Ferrocene ramification (such as Tert-butyl Ferrocene, Ferrocenyl methyl ketone, Ferrocenyl ketone, Ferrocene Formic Acid, Butyl Ferrocene etc. Optimal selection: Ferrocene and Ferrocene ramification. The cocatalyst takes 0.0003-0.03% by weight in atmosphere material. Optimal selection: 0.0003-0.015%.
2. A halogen element compound which takes 0.1-4% by weight in atmosphere material, Optimal selection being 0.1-1%. For example, one or more than one of compounds are selected as the cocatalyst from Chlorobenzen, Trichlorobenzene, Chlorotoluen, Nitrochlorobenzene, Trichloroethylene, Tribromomethane, Iodine, Iodinated Oil, IodoMethane, Freon, Tetrafluoroethylene. Optimal selection: Chlorobenzene, Trichlorobenzene, Nitrochlorobenzene. Compound halogen element can release ions at high temperature, and the ions combine with the hydrogen in the atmosphere to create halogenated hydrogen which can activize the surface of the workpiece and speed up chemical heat treatment reaction on the phase interface. In order to control the corrosion of halogenated hydrogen to proper limit, it is better to select lesser dosage. (There are the uses of some of said material in existing technology, but the dosage is big, thereby affect signal measure of carbon potential sensor probe, the application is limited).
3. Compound nitrogen which takes 0.1-10% by weight in atmosphere material, optimal selection: 0.1-2%. For example, one or more than one of compounds are selected as the cocatalyst from P-Amino-Azobenzene Hydrochloride,
Nitrochlorobenzene, Nitrobenzene, Trinitrobenzene, Melamine, Tricyanic acid, Dicyandiamide, Guanidine nitrate, Nitrobenzene, Toluene diisocyanate, Cyclotrimethylene trinitramine, Pyridine, Pyrazole, Pyrazine. Optimal selection: P-Amino-Azobenzene Hydrochloride, Nitrobenzene, Toluene diisocyanate, Nitrochlorobenzene, Nitrobenzene, Trinitrobenzene, Guanidine nitrate, Cyclotrimethylene

trinitramine. In carburizing and carbonitriding in chemical heat treatment, the cocatalyst releases active nitrogen during heat treatment processing to accelerate each others reactions with the carbon in atmosphere.
4. Using three kinds of said cocatalysts, it is better to add the compound of rare earths which takes 0.03-3% by weight in atmosphere material fed into heat treatment equipment into atmosphere material or atmosphere. One of the compounds can be selected such as from Cerium naphthenates, Lanthanum Naphthenates, Cerium nitrate, Lanthanum Nitrate, Lanthanum chloride, Cerium chloride, Lanthanum fluoride, Cerium fluoride, Lanthanum acetate, Cerium acetate, Lanthanum oxide, or Cerium oxide. Optimal selection: Lanthanum acetate, Cerium acetate, Lanthanum oxide, and Cerium oxide. To optimally select is for decreasing corrosion
The present invention is suitable for heat treatment atmosphere producing and heat treatment production. Heat treatment atmosphere comprising H2, N2, CO as well as a few CH4, CO2, H2O and NH3 that are made of atmosphere materially any means. The four kinds of said cocatalysts in the present invention have equivalent function in operation. One or more than one of combination can be used in chemical heat treatment. The compound metal element should be selected mostly in protective atmosphere heating or protective atmosphere producing.
Making use of the method stated in the present invention, it can be achieved to raise the gas-producing quantity of heat treatment atmosphere material, reduce carbon soot, lower processing temperature of chemical heat treatment and speed up carburizing, carbonitriding and nitrocarburizing of chemical heat treatment. To make use of the present invention can obtain the achievements as following:
1. Atmosphere material can be fissioned fully, carbon soot is decreased and gas-
producing quality tends to be stable in heat treatment.
2. The controllable property and the stability of the heat treatment process is strengthened.
3. It can be leaved out to invest heat treatment atmosphere generator, and atmosphere material and energy sources can be saved.

4. The carbon soot is hardly created at higher atmosphere carbon potential in heat treatment.
5. Lower process temperature in chemical heat treatment by about 50, thereby decrease metallography structure to tend to rough, reduce the distortion of workpiece.
6. Speed up carburizing and carbonitriding more than about 40% in the same process temperature with ordinary chemical heat treatment. Obviously increase efficiency of production, saving electricity cost.

Description with reference to drawings.
Fig 1 is a sketch that illustrates cocatalyst to be gasified and atomized by the system and entering into heat treatment equipment or heat treatment gas-producing equipment with atmosphere material together.
Fig.2 is a sketch that illustrates cocatalyst and atmosphere material entering heat treatment equipment or the heat treatment gas-producing equipment together.
Fig.3 is a sketch that illustrates cocatalyst to be dissolved, dispersed into atmosphere material, and aerated into heat treatment equipment with atmosphere material together.
Fig.4 is a sketch that illustrates the cocatalyst to be dissolved,dispersed into carry agent and aerated heat treatment equipment or heat treatment gas-producing equipment with atmosphere material together.
Example of Practice (method and compound)
In the atmosphere material (except Methanol) enumerated below, one kind or kinds of carbon compound can be used as the atmosphere material. The carbon compound are Kerosene, Ethanol, N-butyl alcohol, Isopropylalcohol, Xylenes, Toluene, Acetone, Ethyl acetate, Methane, Ethane, Dimethylmethane, Butane, RX gas, Natural gas, and Coal gas.
A. Method and contrast: (hatching part in attached drawing is new content increased in original drawing)
1. Fig.l illustrates cocatalyst to be gasified and atomized by the system and entering into
heat treatment equipment or heat treatment gas-producing equipment with atmosphere
material together.
2. Fig.2 illustrates cocatalyst and atmosphere material entering into heat treatment equipment or heat treatment gas-producing equipment together. Cocatalyst and atmosphere material are gasified together making use of the high temperature of heat treatment.
3. Fig.3 illustrate cocatalyst to be dissolved, dispersed into atmosphere material, and aerated into heat treatment equipment with atmosphere material together.
4. Fig.4 illustrates selecting a kind of impregnant, which does not have negative effect to heat treatment atmosphere or heat treatment process. Such an impregnant can be selected from below: Methanol, Ethanol, Aniline, Toluene, Xylenes, Kerosene, Kerosene, Ethanol, N-butyl alcohol, Isopropylalcohol, Acetone, Ethyl acetate, Dimethylmethane, Butane, RX

gas etc. Cocatalyst is dissolved, dispersed into the impregnant, and are fed into heat treatment equipment with atmosphere material together.
5. In existing technology, the catalyst should be activated in heat treatment gas-producing
generator in 30 days, and be changed in about a year, meanwhile it needs to stop the
equipment. In the present invention, it should not need to spend extra time to specially
activize and change cocatalyst. In original technology, the temperature of gas-producing
equipment should be controlled at above 1000 ° C, gas-producing quality can be stable,
eligible. Atmosphere keep at the scope CO2 in present invention, the lowest heat treatment temperature can be decreased to about 800
0 C, still gain the same gas-producing quality.
a) Natural gas and air are aerated into heat treatment gas-producing equipment filled with Nickel catalyst at 1050 ° C, run successively heat treatment equipment for 35 days. CO2 is 0.43%, CH4 is 0.038% in the atmosphere through measure; run successively heat treatment equipment for 40 days, CO2 is 0.63%; CH4 is 0.1% in the atmosphere. It is shown that the catalyst to be poisoning severely. Taking out the catalyst, the catalyst has been surrounded almost completely.
b). Natural gas, air and cocatalyst compound in present invention are aerated into heat treatment gas-producing generator without accelerant at 950 ° C together, and check atmosphere after run successively in 35 days, the C02of the atmosphere is 0.33%, CH4 is 0.03%, after run successively in 45days, the CO2 of the atmosphere is 0.35%, CH4 is 0.03%, after run successively in 60 days, the C02 of the atmosphere is 0.34%, CH4 is 0.03%.
6. In chemical heat treatment with existing technology, the highest carbon potential is less than 1.25% under 920 ° C process temperature, the highest carbon potential is less than 1.15% under 880 ° C process temperature, the highest carbon potential is less than 1.05% under a 850 ° C process temperature, The carbon potential control of oxygen probe will be failure as an effect of carbon soot and the production would not go along. Using the method and cocatalyst of present invention, the higher carbon potential can be increased by about 0.20% and carbon soot is not raised. Refer to table 1.
7. Example: Natural gas and air are aerated into a 90kw pit furnace or a 600 type of multi-furnace, using oxygen probe to control atmosphere carbon potential, turning off auto carbon-burning switch, testing oxygen probe failure time in different temperature carbon potential and in adding and not adding the cocatalyst compound in the present invention. The result is shown in Table 1.

8. Under the 850 ° C condition, Natural gas and air are aerated into a 90kw pit furnace or
a 600-type multi-furnace without cocatalyst compound of the present invention.
Atmosphere carbon potential is 1.00% with oxygen probe control. After 15 minutes, the
oxygen probe seized up. The reason is that much more carbon covered the oxygen probe.
Ten samples with the material being No.20, 20Cr, 20CrMnTi (equivalent 8620 AIS1),
high 20 mm, diameter 90 mm, were placed respectively in said atmosphere to carry
through a Carburizing experiment. The results we discovered through 4 hours of
maintaining a temperature are: (1) The carbon thickness attached on the samples reached
about 1 mm; (2) Table 1 shows the hardness depth result of three kinds of material.
9. Natural gas and air are aerated into a 90kw pit furnace or a 600 type of multi-furnace
respectively under conditions of 920 ° C, 880 ° C, 850 ° C, 830 ° C without the cocatalyst
compound of the present invention, using oxygen probe control atmosphere carbon
potential. Ten samples with the material being No. 20, 20Cr, 20CrMnTi, diameter 90mm,
height 20mm are placed respectively in the atmosphere to carry through a Carburizing
experiment. Table 1 shows the Carburizing result with the three kinds of samples after 4
hours of heat preservation.
10. Natural gas, air and cocatalyst compound of present invention are aerated into a 90kw
of pit furnace or a 600 type of multi-furnace respectively under conditions of 920 ° C, 880
° C, 850 ° C, 830 ° c, using oxygen probe control atmosphere carbon potential.

Respectively put 10 samples with the material being 20, 20Cr, 20CrMnTi, diameter 90mm, height 20mm into the atmosphere to carry through a Carburizing experiment. The Carburizing results with the three kinds of samples are shown below after 4 hours of heat preservation. 1. There is obviously no carbon soot. 2. The results with three kinds of Carburizing of the samples are shown in Table 1.
11. Natural gas, air and cocatalyst compound of the present invention are aerated into 90kw of pit furnace or a 600 type of multi-furnace together respectively under conditions of 920 ° C, 880 ° C, 850 ° C, 830 ° C, using oxygen probe control atmosphere carbon potential. Respectively put 10 samples with the material being 20, 20Cr, 20CrMnTi, diameter 90mm, height 20mm into atmosphere that is fed with little ammonia gas to carry through a Carburizing experiment. The results with three kinds of Carburizing of the samples after 4 hours of heat preservation are shown below. 1. There is obviously no carbon soot. 2. The results with three kinds of Carburizing of the samples are shown in Table 1.
12. Aerate Natural gas and air into 105kw of pit furnace or 1000 type multi-furnace, carry through the experiment of protect atmosphere heat treatment for 2 hours under conditions of 920 °C, 880 °C , 850 °C , 830 °C . The atmosphere-protecting effect is much better after adding cocatalyst compound of the present invention than before.
13. Aerate Natural gas and air into 105kw of pit furnace or 1000 type of multi-furnace respectively under 920 °C, 880 °C, 850 °C, 830 °C condition, control atmosphere carbon potential as 0.85% using oxygen probe, put respectively 10 samples after carburizing that the material are 20, 20Cr, 20CrMnTi, diameter 90mm, height 20mm to do atmosphere-protecting heating quench experiment for 2 hours. The result is shown that the hardness is higher 1 to 2 degree after adding the cocatalyst compound of the present invention than before, and oxidation decarbonization does not take place.
B. The explanation of cocatalyst application
1. The condition, method and result of experiment and contrast in the practice 11, 13, 16, 18, 20, 22, 25, 27 refer to the practice 5, 6, 7, 12.
2. The experiment condition, method, measure result and contrast in other practice refer to the practice 8, 9, 10, and 11.
3. There is an equivalent function in the compound halogen element in the practice below such as Trichlorobenzene, Chlorotoluene, chlorobenzene, Nitrochlorobenzene Carbon tetrachloride, Dichloroethane, Trichloroethane, Trichloroethylene, Ttribromomethane, Iodine, Iodinated Oil, Iodomethane, Freon, and Tetrafluoroethlene. They can be replaced each other in practice.

4. There is an equivalent function in the material such as metal element volatile organic compounds that have catalysis to the atmosphere material in the process of high temperature decomposition and oxidation. The materials below can be replaced with each other. The metal element volatile organic compounds can be Cobalt naphthenate, Manganese naphthenate, Nickel nitrate, Manganese nitrate, Ferrocene as well as Ferrocene ramification (such as Tert-butyl Ferrocene, Ferrocenyl methyl ketone, Ferrocenyl ketone, Ferrocene formic acid, Butyl Ferrocene etc.)
5. There is an equivalent function in the material among the nitrogen volatile organic compounds listed in the practice below. The materials below can be replaced with each other. The nitrogen volatile organic compounds can be P-Amino-Azobenzene Hydrochloride, Nitrochlorobenzene, Nitrobenzene, Trinitrobenzene, Melamine, Tricyanic acid, Dicyandiamide, Guanidine nitrate, Aniline, Toluene diisocyanate, Cyclotrimethylene trinitramine, Pyridine, Pyrazole,Pyrazine, Formamide, Acetamide, Carbamide, Ammonium nitrate etc..
6. The atmosphere carbon potential can be set up with Methanol, water and air in the practice below.
7. A cheaper inert gas such as nitrogen gas is added to decrease the costs of production, and ammonia gas is aerated to produce carbonitriding in the practice below.
C. Examples of the cocatalyst The practice 1
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add 2% weight of Chlorobenzene into Ethyl acetate as the atmosphere material and add Methanol, water and air to set up a carbon potential. The practice 2
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add 1% weight of Trichloroethylene into Methanol as the atmosphere material and add kerosene to set up a carbon potential. The practice 3
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add 4% weight of Chlorotoluene into Methanol as the atmosphere material. The practice 4
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve Dichloroethane into Methanol or other solvent, aerate it into the furnace together with atmosphere material together and control the weight of Dichloroethane to be 0.1% of atmosphere material fed into the furnace

using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas, etc. as the atmosphere material. The practice 5
It can accelerate carbonizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to diffuse Freon which takes 2% of weight in the atmosphere material fed into the furnace into the gas phase material and add Methanol, water and air to set up a carbon potential using one of Methane, Ethane, Dimethylmethane, Butane, RX gas, Natural gas and Coal gas, etc. as the atmosphere material. The practice 6
It can accelerate carbonizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cerium flouride (with the double function of rare earth and halogen) which takes 1.3% of weight in the atmosphere material fed into the furnace into Ethanol as the atmosphere material and add Methanol, water and air to set up a carbon potential. The practice 7
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Lanthanum flouride (with the double function of rare earth and halogen) which takes 1.9% of weight in the atmosphere material fed into the furnace into Methanol as the atmosphere material and add kerosene to set up a carbon potential. The practice 8
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add respectively Cerium naphthenates which takes 2% of weight in the atmosphere material fed into the furnace and Trichloroethylene which takes 1% of the atmosphere material into Methanol and Benzene as the atmosphere material. The practice 9
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve Tribromomethane and Lanthanum nitrate into Methanol or other solvent, aerate them into the furnace together with the atmosphere material and control the weight of Tribromomethane to be 1% of the atmosphere material fed into the furnace and the weight of Lanthanum nitrateto to be 0.6% of the atmosphere material using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas, etc. as the atmosphere material.

The practice 10
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to diffuse Iodine which takes 1.5% of weight in the atmosphere material fed into the furnace and Cerium naphthenates which takes 1.5% of weight in the atmosphere material into gas phase, aerate them into the furnace with atmosphere material together using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas, etc. as the atmosphere material The practice 11
Add Cobalt naphthenate that takes 0.015% of weight in the atmosphere material fed into the furnace into kerosene as the atmosphere material to make heat treatment atmosphere or process atmosphere heat treatment protection. It can decrease carbon soot and increase gas-producing quantity. The practice 12
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Manganese naphthenate which takes 0.02% weight of the atmosphere material fed into the furnace into Toluene as the atmosphere material and add Methanol, water and air to set up a carbon potential. The practice 13
Add Manganese nitrate that takes 0.01% of weight in the atmosphere material fed into the furnace into Methanol as the atmosphere material to make heat treatment atmosphere or process atmosphere heat treatment protection. It can decrease carbon soot and increase gas-producing quantity. The practice 14
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Nickel nitrate which takes 0.008% weight of the atmosphere material fed into the furnace into Methanol as atmosphere material and add Ethyl acetate to set up a carbon potential. The practice 15
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Ferrocenyl ketone which takes 0.0003% weight of the atmosphere material fed into the furnace into Methanol and Acetone as the atmosphere material. The practice 16
Using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas etc as the atmosphere material, dissolve Cobalt naphthenate into Acetone or other solvent, aerate them into the furnace together with atmosphere material, control the quantity of

Cobalt naphthenate to be 0.005% weight of the atmosphere material fed into the furnace, add Methanol, water or air to set up a carbon potential, make heat treatment atmosphere or process atmosphere heat treatment protection. It can decrease carbon soot and increase the atmosphere-producing quantity. The practice 17
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve Nickel nitrate into Methanol or other solvent, aerate it into the furnace together with the atmosphere material, control the quantity of Nickel nitrate to be 0.0008% weight of the atmosphere material fed into the furnace using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas, etc. as the atmosphere material. The practice 18
It can decrease carbon soot, increase gas-producing quantity to diffuse Butyl Ferrocene which takes 0.008% of weight in the atmosphere material fed into the furnace into the gas phase, aerate it into the furnace together with atmosphere material, add Methanol, water or air to set up a carbon potential and make heat treatment atmosphere or process atmosphere heat treatment protection using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas, etc. as the atmosphere material. The practice 19
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to diffuse ferrocenyl methyl ketone which takes 0.004% of weight in the atmosphere material fed into the furnace into the gas phase and aerate it into the furnace together with the atmosphere material using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas etc as the atmosphere material. The practice 20
It can decrease carbon soot, increase gas-producing quantity to add Ferrocenyl ketone which takes 0.03% weight of the atmosphere material fed into the furnace and Lanthanum chloride which takes 3% weight of the atmosphere material into Acetone as the atmosphere material, add Methanol, water or air to set up a carbon potential and make heat treatment atmosphere or process atmosphere heat treatment protection. The practice 21
Cerium chloride it can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Ferrocene formic acid which takes 0.0003% weight of the atmosphere material fed into the furnace and Cerium chloride

which takes 2% weight of the atmosphere material into Xylene as the atmosphere material and add Methanol, water or air to set up a carbon potential. The practice 22
It can decrease carbon soot, increase gas-producing quantity to add butyl ferrocene which takes 0.03% weight of the atmosphere material fed into the furnace and Lanthanum nitrate which takes 0.6% weight of the atmosphere material into Methanol as the atmosphere material to make heat treatment atmosphere or process atmosphere heat treatment protection. The practice 23
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cobalt naphthenate which takes 0.002% weight of the atmosphere material fed into the furnace and Cerium nitrate which takes 3% weight of the atmosphere material into Methanol as the atmosphere material and add kerosene to set up a carbon potential. The practice 24
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cobalt naphthenate which takes 0.08% weight of the atmosphere material fed into the furnace and Lanthanum nitrate which takes 0.1% weight of the atmosphere material into Methanol and Ethyl acetate as the atmosphere material. The practice 25
It can decrease carbon soot, increase gas-producing quantity to dissolve Manganese nitrate and Lanthanum naphthenates into Methanol or other solvent, aerate them into the furnace together with atmosphere material and control the weight of Manganese nitrate to be 0.01% of the atmosphere material fed into the furnace and the weight of Lanthanum naphthenates to be 0.5% of the atmosphere material and add Methanol, water or air to set up a carbon potential to make heat treatment atmosphere or process atmosphere heat treatment protection using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas, etc. as the atmosphere material The practice 26
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve Lanthanum acetate and Cerium acetic acid into Methanol or other solvent, aerate them into the furnace together with the atmosphere material and control the weight of Lanthanum acetate to be 0.003% of the atmosphere material fed into the furnace and the weight of Cerium acetic acid to be 1 % of the

atmosphere material using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas, etc. as the atmosphere material. The practice 27
It can decrease carbon soot, increase gas-producing quantity to diffuse Ferrocene which takes 0.0015% of weight in the atmosphere material fed into the furnace and Cerium naphthenates which takes 0.3% of weight in the atmosphere material into the gas phase, aerate it into the furnace together with the atmosphere material, add Methanol, water or air to set up a carbon potential to make heat treatment atmosphere or process atmosphere heat treatment protection using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas, etc. as the atmosphere material. The practice 28
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to diffuse ferrocenyl methyl ketone which takes 0.006% weight of the atmosphere material fed into the furnace and Cerium naphthenates which takes 1.5% weight of the atmosphere material into gas phase as the atmosphere material using one of Methane, Ethane, Dimethylmethane, Butane, RX gas, coal gas and Natural gas, etc. as the atmosphere material. The practice 29
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add P-amino-azobenzene hydrochloride which takes 0.002% weight of the atmosphere material fed into the furnace into kerosene as the atmosphere material and add Methanol, water and air to set up a carbon potential. The practice 30
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Pyrazewhich takes 2% weight of the atmosphere material fed into the furnace into Methanol as the atmosphere material and add N-butyl alcohol to set up a carbon potential. The practice 31
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add respectively Cyclotrimethylene trinitramine which takes 1% weight of the atmosphere material fed into the furnace into Methanol and Kerosene as the atmosphere material. The practice 32
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve Acetamide into Methanol or other solvent, aerate it into the furnace together with the atmosphere material, control the quantity of

Nickel nitrate to be 6% weight of the atmosphere material fed into the furnace using one of Methane, Ethane, Dimethylmethanemethane, Butane, RX gas and Natural gas, etc. as the atmosphere material. The practice 33
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Formamide which takes 3% weight of the atmosphere material fed into the furnace into gas phase, aerate it into the furnace together with the atmosphere material and add Methanol, water and air to set up a carbon potential. The practice 34
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cerium oxide which takes 2% weight of the atmosphere material fed into the furnace and pyrazole which takes 1 % weight of the atmosphere material into Isopropyl alcohol as atmosphere material, and add Methanol, water and air to set up a carbon potential. The practice 35
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Lanthanum oxide which takes 1.2% weight of the atmosphere material fed into the furnace and melamine which takes 2% weight of the atmosphere material into Methanol as the atmosphere material, and add kerosene to set up a carbon potential. The practice 36
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add respectively Cerium oxide which takes 1% weight of the atmosphere material fed into the furnace and Dicyandiamide which takes 1% weight of the atmosphere material into Methanol and N-butyl alcohol as the atmosphere material. The practice 37
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve Pyridine and Cerium naphthenates into Methanol or other solvent, aerate them into the furnace together with the atmosphere material, control the quantity of Pyridine to be 1% weight of the atmosphere material fed into the furnace and the quantity of Cerium naphthenates to be 0.6% weight of the atmosphere material using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas, etc. as the atmosphere material.

The practice 38
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to diffuse Cyclotrimethylene trinitramine which takes 1 % weight of the atmosphere material fed into the furnace and Cerium naphthenates which takes 1% weight of the atmosphere material into gas phase, aerate them into the furnace together with atmosphere material. The practice 39
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cobalt naphthenate which takes 0.003% weight of the atmosphere material fed into the furnace and chlorobenzene which takes 2% weight of the atmosphere material into Ethyl acetate as the atmosphere material, and add Methanol, water and air to set up a carbon potential. The practice 40
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Nickel nitrate which takes 0.006% weight of the atmosphere material fed into the furnace and Trichloroethylene which takes 1% weight of the atmosphere material into Methanol as the atmosphere material, and add kerosene to set up a carbon potential. The practice 41
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add respectively Ferrocene which takes 0.0009% weight of the atmosphere material fed into the furnace and Chlorotoluene which takes 2% weight of the atmosphere material into Methanol and kerosene as the atmosphere material. The practice 42
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve Manganese nitrate and Dichloroethane into Methanol or other solvent, aerate them into the furnace together with atmosphere material, control the quantity of Manganese nitrate to be 0.01% weight of the atmosphere material fed into the furnace and the quantity of Dichloroethane to be 1% weight of the atmosphere material using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas, etc. as the atmosphere material. The practice 43
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to diffuse Ferrocene which takes 0.006% weight of the atmosphere material fed into the furnace and Freon which takes 2% weight of the

atmosphere material into gas phase, aerate them into the furnace together with the atmosphere material, and add Methanol, water and air to set up a carbon potential. The practice 44
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cobalt naphthenate takes 0.009% weight of the atmosphere material fed into the furnace, Cerium naphthenates which takes 1% weight of the atmosphere material and Nitrochlorobenzene which takes 2% weight of the atmosphere material into Ethanol as the atmosphere material, and add Methanol, water and air to set up a carbon potential. The practice 45
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cobalt naphthenate takes 0.07% weight of the atmosphere material fed into the furnace, Lanthanum nitrate which takes 0.9% weight of the atmosphere material and Trichloroethane which takes 2% weight of the atmosphere material into Methanol as the atmosphere material, and add Methanol, water and air to set up a carbon potential. The practice 46
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Ferrocene takes 0.001% weight of the atmosphere material fed into the furnace, Cerium naphthenates which takes 2% weight of the atmosphere material and Trichloroethylene which takes 1% weight of the atmosphere material into Methanol as the atmosphere material. The practice 47
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve Manganese naphthenate, Ttribromomethane , and Lanthanum nitrate into Methanol or other solvent, aerate them into the furnace together with the atmosphere material, control the quantity of Manganese naphthenate to be 0.006% weight of the atmosphere material fed into the furnace, the quantity of Tribromomethanemethane to be 1% weight of the atmosphere material and the quantity of Lanthanum nitrate to be 0.6% weight of the atmosphere material using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas, etc. as the atmosphere material. The practice 48
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to diffuse Ferrocene which takes 0.006% weight of the atmosphere material fed into the furnace, Iodine which takes 1.5% weight of the

atmosphere material and Cerium naphthenates which takes 1% weight of the atmosphere
material into the gas phase, aerate them into the furnace together with atmosphere
material.
The practice 49
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Iodinated Oil takes 1% weight of the atmosphere material fed into the furnace and Guanidine nitrate which takes 2% weight of the atmosphere material into Methanol as the atmosphere material, add Methanol, water and air to set up a carbon potential. The practice 50
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Ttribromomethane takes 2% weight of the atmosphere material fed into the furnace and Nitrobenzene which takes 1% weight of the atmosphere material into Methanol as the atmosphere material, add Kerosene to set up a carbon potential. The practice 51
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add respectively Iodomethane takes 2% weight of the atmosphere material fed into the furnace and Tricyanic acid which takes 1% weight of the atmosphere material into Methanol and Kerosene as the atmosphere material. The practice 52
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve Tetrafluoroethylene and Tricyanic acid into Methanol or other solvent, aerate them into the furnace with the atmosphere material together, control the quantity of tetrafluoroethylene to be 2% weight of the atmosphere material fed into the furnace and the quantity of tricyanic acid to be 1 % weight of the atmosphere material using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas, etc. as the atmosphere material. The practice 53
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to diffuse Carbon tetrachloride which takes 2% weight of the atmosphere material fed into the furnace and Toluene diisocyanate which takes 3% weight of the atmosphere material into gas phase, aerate them into the furnace together with the atmosphere material, and add Methanol, water and air to set up a carbon potential.

The practice 54
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Lanthanum naphthenates which takes 2% weight of the atmosphere material fed into the furnace, Iodinated Oil which takes 2% weight of the atmosphere material and Nitrochlorobenzene which takes 1% weight of the atmosphere material into gas phase, aerate them into the furnace together with the atmosphere material, and add Methanol, water and air to set up carbon potential. The practice 55
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cerium chloride (with the double function of rare earth and halogen) which takes 1.6% of weight in the atmosphere material fed into the furnace and Nitrobenzene which takes 1% of weight in the atmosphere material into Methanol as atmosphere material and add kerosene to set up a carbon potential. The practice 56
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add respectively Lanthanum naphthenates which takes 1.6% of weight in the atmosphere material fed into the furnace and Nitrochlorobenzene (with double function of rare earth and halogen) which takes 1% of weight in the atmosphere material into Methanol as the atmosphere material. The practice 57
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve Carbon tetrachloride, Pyridine and Cerium naphthenates into Methanol or other solvent, aerate them into the furnace together with atmosphere material, control the quantity of Carbon tetrachloride to be 1 % weight of the atmosphere material fed into the furnace, the quantity of Pyridine to be 1 % weight of the atmosphere material and the quantity of Cerium naphthenates to be 0.2% weight of the atmosphere material using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas, etc. as the atmosphere material. The practice 58
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to diffuse Iodomethane which takes 1.1% weight of the atmosphere material fed into the furnace, Freon which takes 2% weight of the atmosphere material and Cerium naphthenates which takes 0.1% weight of the atmosphere material into gas phase, aerate them into the furnace together with atmosphere material, and add Methanol, water and air to set up a carbon potential.

The practice 59
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cobalt naphthenate which takes 0.002% weight of the atmosphere material fed into the furnace and P-amino-azobenzene hydrochloride which takes 2% weight of the atmosphere material into kerosene as the atmosphere material, add Methanol, water and air to set up a carbon potential. The practice 60
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cobalt naphthenate which takes 0.02% weight of the atmosphere material fed into the furnace and Pyrazine which takes 2% weight of the atmosphere material into Methanol as the atmosphere material, add N-butyl alcohol to set up a carbon potential. The practice 61
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add respectively Ferrocene ramification which takes 0.0009% of weight in the atmosphere material fed into the furnace and Cyclotrimethylene trinitramine which takes 1% of weight in the atmosphere material into Methanol and Kerosene as the atmosphere material. The practice 62
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve Manganese nitrate and acetamide into Methanol or other solvent, aerate them into the furnace together with the atmosphere material, control the quantity of Manganese nitrate to be 0.006% weight of the atmosphere material fed into the furnace and the quantity of Acetamide to be 2% weight of the atmosphere material using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas etc. as the atmosphere material. The practice 63
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to diffuse Ferrocenyl methyl ketone which takes 0.006% weight of the atmosphere material fed into the furnace and Formamide which takes 1 % weight of the atmosphere material into gas phase, aerate them into the furnace together with the atmosphere material, and add Methanol, water and air to set up a carbon potential. The practice 64
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cobalt naphthenate which takes 0.002% weight

of the atmosphere material fed into the furnace, Cerium nitrate which takes 2% weight of the atmosphere material and Pyrazole which takes 1% weight of the atmosphere material into Isopropyl alcohol as the atmosphere material, add Methanol, water and air to set up a carbon potential. The practice 65
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cobalt naphthenate which takes 0.02% weight of the atmosphere material fed into the furnace, Lanthanum nitrate which takes 1.2% weight of the atmosphere material and Melamine which takes 2% weight of the atmosphere material into Methanol as the atmosphere material, add kerosene to set up a carbon potential. The practice 66
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add respectively Ferrocene formic acid which takes 0.0009% weight of the atmosphere material fed into the furnace, Cerium naphthenates which takes 1% weight of the atmosphere material and Dicyandiamide which takes 1% weight of the atmosphere material into Methanol and N-butyl alcohol as the atmosphere material. The practice 67
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve Manganese nitrate, Pyridine and Cerium naphthenates into Methanol or other solvent, aerate them into the furnace with the atmosphere material together, control the quantity of Manganese nitrate to be 0.02% weight of the atmosphere material fed into the furnace, the quantity of Pyridine to be 1% weight of the atmosphere material and the quantity of Cerium naphthenates to be 0.6% weight of the atmosphere material using one of Methane, Ethane, Dimethylmethane,Butane,RX gas and Natural gas etc. as the atmosphere material. The practice 68
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to diffuse Tert-butyl ferrocene which takes 0.006% weight of the atmosphere material fed into the furnace, Guanidine nitrate which takes 1% weight of the atmosphere material and Cerium naphthenates which takes 1 % weight of the atmosphere material into gas phase, aerate them into the furnace together with atmosphere material together.

The practice 69
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cobalt naphthenate which takes 0.003% weight of the atmosphere material fed into the furnace, Iodinated Oil which takes 1% weight of the atmosphere material and Guanidine nitrate which takes 2% weight of the atmosphere material into acetone as the atmosphere material, add Methanol, water and air to set up a carbon potential. The practice 70
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cobalt naphthenate which takes 0.002% weight of the atmosphere material fed into the furnace, Ttribromomethane which takes 2% weight of the atmosphere material and Nitrobenzene which takes 1% weight of the atmosphere material into Methanol as atmosphere material, add kerosene to set up a carbon potential. The practice 71
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add respectively Ferrocene which takes 0.004% weight of the atmosphere material fed into the furnace, Iodomethane which takes 2% weight of the atmosphere material and tricyanic acid which takes 1% weight of the atmosphere material into Methanol and kerosene as atmosphere material. The practice 72
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve Manganese nitrate, tetrafluoroethylene and tricyanic acid into Methanol or other solvent, aerate them into the furnace with atmosphere material together, control the quantity of Manganese nitrate to be 0.006% weight of the atmosphere material fed into the furnace, the quantity of Tetrafluoroethylene to be 2% weight of the atmosphere material and the quantity of tricyanic acid to be 1 % weight of the atmosphere material using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas etc. as the atmosphere material. The practice 73
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to diffuse Manganese naphthenate which takes 0.003% weight of the atmosphere material fed into the furnace, toluene which takes 2% weight of the atmosphere material and Toluene diisocyanate which takes 3% weight of the atmosphere material into gas phase, aerate them into the furnace together with atmosphere material, and add Methanol, water and air to set up a carbon potential.

The practice 74
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cobalt naphthenate which takes 0.003% weight of the atmosphere material fed into the furnace, Lanthanum naphthenates which takes 2% weight of the atmosphere material and Trichlorobenzene which takes 0.004% weight of the atmosphere material into kerosene as atmosphere material, add Methanol, water and air to set up a carbon potential or add ammonia gas. The practice 75
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Cobalt naphthenate takes 0.02% weight of the atmosphere material fed into the furnace, Cerium chloride (instead of rare earth and halogen) which takes 1% weight of the atmosphere material and Nitrobenzene which takes 1% weight of the atmosphere material into Methanol as atmosphere material, add kerosene to set up a carbon potential. The practice 76
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add Butyl ferrocene which takes 0.0009% weight of the atmosphere material fed into the furnace, Lanthanum naphthenates which takes 2% weight of the atmosphere material, Carbon tetrachloride which takes 2% weight of the atmosphere material and Trinitrobenzene which takes 1% weight of the atmosphere material into Methanol and Kerosene as atmosphere material, add Methanol ,water and air to set up a carbon potential. The practice 77
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve Manganese nitrate, Carbon tetrachloride, Pyridine and Cerium naphthenates into Methanol or other solvent, aerate them into the furnace together with atmosphere material, control the quantity of Manganese nitrate to be 0.01% weight of the atmosphere material fed into the furnace, the quantity of Carbon tetrachloride to be 1% weight of the atmosphere material, the quantity of Pyridine to be 1% weight of the atmosphere material, the quantity of Cerium naphthenates to be 0.2% weight of the atmosphere material using one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas etc. as the atmosphere material. The practice 78
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to diffuse Butyl Ferrocene which takes 0.006% weight of the atmosphere material fed into the furnace, Iodomethane which takes 1.1% weight of

the atmosphere material, Freon which takes 2% weight of the atmosphere material and Cerium naphthenates which takes 0.1% weight of the atmosphere material into gas phase, aerate them into the furnace together with the atmosphere material. The practice 79
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to diffuse Butyl Ferrocene which takes 0.006% weight of the atmosphere material fed into the furnace, P-Amino-Azobenzene Hydrochloride which takes 1 % weight of the atmosphere material, Freon which takes 2% weight of the atmosphere material and Cerium naphthenates which takes 0.1% weight of the atmosphere material into gas phase, aerate them into the furnace together with the atmosphere material which is one of Methane, Ethane, Dimethylmethane, Butane, RX gas and Natural gas etc. as. The practice 80
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add the Chlorobenzene which takes 2% weight of the atmosphere material fed into the furnace into Ethyl acetate as the atmosphere material, adding Methanol, Water and Air to set up a carbon potential. The practice 81
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to add the Iodomethane which takes 2% weight of the atmosphere material fed into the furnace and Ammonium nitrate which takes 1 % weight of the atmosphere material into Methanol and Kerosene as the atmosphere material. The practice 82
It can accelerate carburizing and lower processing temperature in carburizing, carbonitriding and nitrocarburizing to dissolve the Tetrafluoroethylene and Carbamide into Methanol or other solvent, aerate them into the furnace together with the atmosphere material, control the quantity of Tetrafluoroethylene to be 2% weight of the atmosphere material fed into the furnace and the quantity of Carbamide to be 1% weight of the atmosphere material using one of Methane, Ethane, Dimethylmethane, Butane,RX gas as the atmosphere material.

1 claim:
1. An operation method using heat treatment atmosphere cocatalyst characterized in that the cocatalyst is dissolved or dispersed into heat treatment atmosphere material and atmosphere, and the cocatalyst maintain the form of gas phase or finer dispersion and diffuse into atmosphere in the heat treatment equipment or heat treatment gas-producing equipment.
2. The method according to claim 1 wherein the cocatalyst is diffused directly into heat treatment atmosphere material or heat treatment atmosphere in the form of gas phase or finer dispersion, or it is dissolved or dispersed into a heat treatment atmosphere material as carry material, and is fed into heat treatment equipment or heat treatment gas-producing equipment with atmosphere material together.
3. A heat treatment atmosphere cocatalyst characterized in that the cocatalyst keep in the form of gas phase or finer dispersion and diffuse into atmosphere material or atmosphere in heat treatment equipment or heat treatment gas-producing equipment.
4. The heat treatment atmosphere cocatalyst according to claim 3 wherein the cocatalyst is dispersed directly into heat treatment atmosphere material or heat treatment atmosphere in the form of gas phase or finer dispersion, or the cocatalyst is dissolved or dispersed into a carry material, then they are fed into heat treatment atmosphere material together in heat treatment equipment or gas-producing equipment.
5. The heat treatment atmosphere cocatalyst according to claim3 or 4 wherein the cocatalyst is selected from Compound halogen element which takes 0.1—4% weight in heat treatment atmosphere material, optimal selection: 0.1—1%; Compound metal element which takes 0.0003—0.03% weight in heat treatment atmosphere material, optimal selection: 0.0003—0.015%; Compound nitrogen which takes 0.1—10% weight in heat treatment atmosphere material, optimal selection 0.1—2%; Or said arbitrary combination. Wherein, the Compound metal element is selected from one or arbitrary combination of Cobalt naphthenate. Manganese naphthenate, Nickel nitrate. Manganese nitrate. Ferrocene as well as Ferrocene ramification, optimal selection: Ferrocene, Ferrocene ramification; Said Compound halogen element selected from one or their combination of Chlorobenzene, Trichlorobenzene, Chlorotoluene, Nitrochlorobenzene, Trichloroethylene, Ribromomethane, Iodine, lodinated oil, lodomethane, Freon, Tetrafluoroethylene. Optimal selection: Chlorobenzene, Trichlorobenzene, Chlorotoluene, Nitrochlorobenzene, or their combination. Said Compound nitrogen selected from one or arbitrary combination of P-Amino-Azobenzene Hydrochloride, Nitrobenzene, Toluene diisocyanate.

Nitrochlorobenzene, Nitrobenzene, Trinitrobenzene, Melamine, Tricyanic acid, Dicyandiamide, Guanidine nitrate, Cyclotrimethylenetrinitramine, Pyridine, Pyrazol, Pyrazine. Optimal selection: P-Amino-Azobenzene Hydrochloride, Nitrobenzene, Toluene diisocyanate, Nitrochlorobenzene, Nitrobenzene, Trinitrobenzene, Guanidinenitrate, Cyclotrimethylenetrinitramine or their arbitrary combination.
6. The heat treatment atmosphere cocatalyst according to claim 3 or 4 wherein compound of rare earths is added which takes 0.1-3% weight in atmosphere material into heat treatment atmosphere or atmosphere material, such as Cerium naphthenates. Lanthanum naphthenates, Cerium Nitrate, Lanthanum nitrate. Lanthanum chloride, Cerium chloride, lanthanum fluoride, Cerium fluoride. Optimal selection: Lanthanum Acetate, Cerium Acetate, Lanthanum Oxide, Cerium Oxide or their arbitrary compound.
7. A method of atmosphere heat treatment of metal material wherein the method includes heat treating metal material in the atmosphere with cocatalyst or the active atmosphere produced by the cocatalyst characterized in that said cocatalyst is diffused into atmosphere in the form of gas phase or finer dispersion, and releasing out active substance.
8. The method of atmosphere heat treatment according to claim 7 wherein the cocatalyst being dispersed directly into heat treatment atmosphere material or heat treatment atmosphere in the form of gas phase or finer dispersion. Or said cocatalyst being dissolved or dispersed into a heat treatment atmosphere material as carry material, and fed into heat treatment gas-producing equipment or heat treatment equipment with carry material together.
9. The method of atmosphere heat treatment as claimed in claim7 wherein the cocatalyst is the cocotalyst as claimed in claim5 or 6.
10. The method of atmosphere heat treatment in claims 7 to 9 wherein using the cocatalyst, carburizing or carbonitrding can be processed by raising a higher carbon potential, optimal selection:0.25 carbon potential, better optimal selection:0.15 carbon potential, or in lower temperature, or in short time than without said cocatalyst.
11. A metal material heat treatment atmosphere wherein the atmosphere includes a kind of material cocatalyst which is diffused into said atmosphere in the form of gas phase or finer dispersion and release a kind of material which play a part catalysis and activation to said atmosphere in heat treatment gas-producing equipment or heat treatment equipment and said cocatalyst is selected from the cocatalyst as claimed in claim3 or 4.

12. A method raising carbon potential and/or decreasing the generation of carbon soot, or lowering process temperature in the atmosphere heat treatment of metal material characterized by adding the cocatalyst as claimed in claims 3 to 6 into heat treatment atmosphere or heat treatment atmosphere material.

Documents:

0118-chenp-2005 abstract duplicate.pdf

0118-chenp-2005 abstract.pdf

0118-chenp-2005 claims duplicate.pdf

0118-chenp-2005 claims.pdf

0118-chenp-2005 correspondence -others.pdf

0118-chenp-2005 correspondence -po.pdf

0118-chenp-2005 description (complete) duplicate.pdf

0118-chenp-2005 description (complete).pdf

0118-chenp-2005 drawings.pdf

0118-chenp-2005 form-1.pdf

0118-chenp-2005 form-18.pdf

0118-chenp-2005 form-26.pdf

0118-chenp-2005 form-3.pdf

0118-chenp-2005 form-5.pdf

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Patent Number

218524

Indian Patent Application Number

118/CHENP/2005

PG Journal Number

21/2008

Publication Date

23-May-2008

Grant Date

02-Apr-2008

Date of Filing

02-Feb-2005

Name of Patentee

LI, LANGEN

Applicant Address

P.O. Box 296, No. 1, Taibei North Road, Xian, Shaanxi 710 069,

Inventors:

#	Inventor's Name	Inventor's Address
1	LI, Langen	P.O. Box 296, No. 1, Taibei North Road, Xian, Shaanxi 710 069,

PCT International Classification Number

C23C 8/20

PCT International Application Number

PCT/CN02/00486

PCT International Filing date

2002-07-09

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1			NA