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总结国外转包生产中常用铝合金材料和钢制零件的压痕硬度检测和电导率检测方法的正确运用经验，并且通过实例论述了如何有效控制和预防零件的热处理变形，从而使经热处理的零件满足工程设计图纸要求。
This paper summarizes the correct application experience of indentation hardness test and conductivity test method of commonly used aluminum alloy materials and steel parts in foreign subcontract production and discusses how to effectively control and prevent the heat treatment deformation of the parts through the examples so that the heat treated parts Meet the requirements of engineering drawings.