Semi-solid casting process of aluminum alloys with a grain refiner
US7025113B2 · kind B2 · utility
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23Claims
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Key dates
| Filing date | Jul 21, 2003 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | Aug 31, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S164/90
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for the refining of primary aluminum in hypoeutectic alloys by mixing a titanium based grain refiner into a solid/semi-solid hypoeutectic slurry is described. The method provides control of the morphology, size, and distribution of primary Al in a hypoeutectic Al—Si casting by mixing a hypoeutectic Al—Si liquid with titanium boron alloys. The invention enables grain refining techniques for SSM casting of hypoeutectic Al—Si alloys.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.