发明名称 |
Method of quenching alloy sheet to minimize distortion |
摘要 |
The invention relates to a method of producing a sheet article or other elongated product of solution heat-treated aluminum alloy substantially free of permanent thermal distortion. The article is subjected to a solution heat treatment at a solutionizing temperature to dissolve precipitates present in the alloy, cooled in a gas from the solutionizing temperature to an upper critical temperature below which precipitation of second phase particles of the alloy may occur, further cooled in a liquid from the upper temperature to a lower critical temperature below which precipitation of the components may no longer occur, and optionally additionally cooled to a temperature below the lower critical temperature. The cooling of the article in the gas is carried out at a rate of cooling at which the yield strength of the article remains high enough to resist permanent deformation caused by thermal stress generated within the article by the cooling. |
申请公布号 |
AU2137601(A) |
申请公布日期 |
2001.06.25 |
申请号 |
AU20010021376 |
申请日期 |
2000.12.15 |
申请人 |
ALCAN INTERNATIONAL LIMITED |
发明人 |
ALOK KUMAR GUPTA;HELENE P. LAGACE;PAUL W. JEFFREY;JAROSLAV URBANEK;CHRISTOPHER JOHN DAVENPORT |
分类号 |
C22F1/05;C21D9/573;C22F;C22F1/00;C22F1/04;C22F1/047 |
主分类号 |
C22F1/05 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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