Title: Heat treatment process for aluminum alloy sheet
Application Number: 95195922 Application Date: 1995.09.05
Publication Number: 1162341 Publication Date: 1997.10.15
Approval Pub. Date: 2001.07.11 Granted Pub. Date: 2001.07.11
International Classifi-cation: C22F1/04;C22F1/05
Applicant(s) Name: Alcan International Co., Ltd. Address:
Inventor(s) Name: A. K. Gupta;M. J. Wheeler;M. J. Bull
Attorney & Agent: LU XINHUA
Abstract:
    A process of producing solution heat treated aluminum alloy sheet material comprises subjecting hot- or cold-rolled aluminum alloy sheet to solution heat treatment followed by quenching and, before substantial age hardening has taken place, subjecting the alloy sheet material to one or more subsequent heat treatments involving heating the material to a peak temperature in the range of 100-300 DEG C(preferably 130-270 DEG C), holding the material at the peak temperature for a period of time less than about 1 minute, and cooling the alloy from the peak temperature to a temperature of 85 DEG C or less. The sheet material treated in this way can be used for automotive panels and has well a good
Time: 9
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