Method for reforming A1 alloy castings
US7452430B2 · kind B2 · utility
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Key dates
| Filing date | Oct 2, 2003 |
| Grant date | Nov 18, 2008 |
| Priority date | — |
| Expiry date | Sep 15, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22F1/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In reforming mechanical characteristics of a precipitation hardening type Al alloy casting, the Al alloy casting is subjected to a high temperature/high pressure treatment, then the pressure is reduced while maintaining the temperature of the Al alloy casting, and subsequently the Al alloy casting is subjected to solution treatment, quenching, and aging in this order. According to this method, mechanical characteristics of the casting can be reformed efficiently and economically and there can be obtained a reformed product of good quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.