Patent ID: 6752885
Filing Date: 2004-06-22
Classification: C22C,C22F

Abstract:
A process for the heat treatment of structure castings made from an aluminum alloy, comprising the steps of:placing the structure casting onto a contour-embracing product receiving device, heating the casting to 490Â° C. over the course of approximately 30 minutes, holding the temperature of 490Â° C. for a time of between 60 and 90 minutes, quenching in air from 490Â° C. to approximately 100Â° C. over the course of approximately 4 minutes, heating to 250Â° C. over the course of approximately 15 minutes, holding the temperature of 250Â° C. for a time of between 30 and 105 minutes, quenching in air 40Â° C.