| Title of Invention | MASTER ALLOY FOR MODIFICATION AND GRAIN REFINING OF HYPOEUTECTIC AI - SI BASED FOUNDRY ALLOYS AND ITS PROCESS FOR MANUFACTURE |
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| Abstract | TITLE:MASTER ALLOY FOR MODIFICATION AND GRAIN REFINING OF HYPOEUTECTIC AI-SI BASED FOUNDRY ALLOYS AND ITS PROCESS FOR MANUFACTURE Master alloys and in particular to master alloys for grain refinement and modification of hypo-eutectic Al-Si alloy. The master alloys is provided to selectively comprise Al-Ti-C-Sr wherein the content of Al is in the range of 80 to 92%, Ti is in the range of 4.8 to 5.2%, C is in the range of 1.1 to 2.2, Sr is in the range of 1.2 to13%. The master alloys (modifiner) can be advantageously added to carry out modification and grain refinement of hypoeutectic Al-Si based foundry alloys. Importantly, the master alloy favours grain refinement and modified castings in a single step. The master alloys is further directed to achieve simple and cost-effective both grain refinement and modification of hypoeutectic Al-si based foundry alloys. It is found to be highly compatible for the desired grain refinement and modification of Al-Si alloy and is added to the Al-Si alloys in liquid state. The master alloys are also advantageous in that it does not have any adverse effects on the desired modification. (FIG. - nil) |
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656-KOL-2004-CORRESPONDENCE.pdf
656-kol-2004-granted-abstract.pdf
656-kol-2004-granted-claims.pdf
656-kol-2004-granted-correspondence.pdf
656-kol-2004-granted-description (complete).pdf
656-kol-2004-granted-drawings.pdf
656-kol-2004-granted-examination report.pdf
656-kol-2004-granted-form 1.pdf
656-kol-2004-granted-form 18.pdf
656-kol-2004-granted-form 2.pdf
656-kol-2004-granted-form 3.pdf
656-kol-2004-granted-letter patent.pdf
656-kol-2004-granted-reply to examination report.pdf
656-kol-2004-granted-specification.pdf
| Patent Number | 222043 | ||||||||||||
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| Indian Patent Application Number | 656/KOL/2004 | ||||||||||||
| PG Journal Number | 29/2008 | ||||||||||||
| Publication Date | 18-Jul-2008 | ||||||||||||
| Grant Date | 16-Jul-2008 | ||||||||||||
| Date of Filing | 19-Oct-2004 | ||||||||||||
| Name of Patentee | INDIAN INSTITUTE OF TECHNOLOGY | ||||||||||||
| Applicant Address | KHARAGPUR - 721302 | ||||||||||||
Inventors:
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| PCT International Classification Number | N/A | ||||||||||||
| PCT International Application Number | N/A | ||||||||||||
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PCT Conventions:
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