According to feature of 6a02 aluminum alloy and quality requirement of the shapes, spray quenching and forced airquenching on the shapes flowing bed of extruder were conducted.
It shows that even granular bainite structure can be obtained in the condition of airquenching. The temper resistance is better and comprehensive mechanical properties of the steel are higher.
试验结果表明，该钢在空冷条件下可获得均匀的粒状贝氏体组织，具有良好的耐回火性和较高综合力学性能。
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QUENCHING: The process of rapid cooling from an elevated temperature. The product is placed in contact with liquids or gases, usually oil, water, or air.