Process for producing an aluminum alloy sheet
US6248193A · kind A · utility
7Cited by
1References
1Claims
0Family size
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Key dates
| Filing date | May 12, 2000 |
| Grant date | Jun 19, 2001 |
| Priority date | — |
| Expiry date | May 12, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22F1/047
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A continuously cast and rolled sheet of an aluminum alloy having Mg in a content of 3 to 6% by weight is annealed, followed by strain correction, heat and hold treatment at a given temperature between 240.degree. C. and 340.degree. C. for one hour or more, and slowly cooling treatment, to thereby provide an aluminum alloy sheet having enhanced resistance to stress corrosion cracking and improved shape fixability. The slowly cooling treatment is carried out at a cooling rate chosen from a preset cooling zone corresponding to a present temperature zone S defined in obliquely lined surround form in the accompanying drawing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.