Process for the thermal treatment of aluminum alloy sheets
US4196021A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1978 |
| Grant date | Apr 1, 1980 |
| Priority date | — |
| Expiry date | Apr 26, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22F1/053
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention relates to a process for the thermal treatment of aluminum alloys containing zinc, magnesium and copper as main alloying elements, and the products manufactured by this process and having an average particle diameter of Al-Mg-Cr phase of between 800 A and 1000 A. This process involves carrying out a treatment at high temperature for a sufficiently short period to prevent coalescense into particles which are too large. This treatment is preferably carried out at the homogenization stage for thin products and at the final dissolution stage for thick products. The invention is applied, in particular, to the manufacture of thin or thick sheets for the aeronautical industry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.