Method for the thermal treatment of foundry pieces made from an alloy based on aluminium and foundry pieces with improved mechanical properties
US7776168B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Mar 20, 2003 |
| Grant date | Aug 17, 2010 |
| Priority date | — |
| Expiry date | Mar 20, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22F1/047
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of heat-treating a casting made of an aluminum-based alloy including an alloy of aluminum, silicon, and magnesium comprising heat treating the casting at a first temperature range for a first duration; gradually cooling the casting to a second temperature having a second temperature range; maintaining the casting at the second temperature range for a second duration; quenching the casting; and age hardening the casting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.