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我厂模具多数选用Cr12Mo钢制造,过去由于不能控制热处理变形,影响了生产。近年来通过反复实验,已获得系统的操作规范,其工艺路线如下:原材料准备→粗加工→调质→精加工→热处理→抛光。一、原材料的要求原材料碳化物的偏析是否严重,对热处理变形有很大影响。为此,对碳化物偏析度超过4级的原材料,必须进行锻造,使碳化物均匀地分布在钢的基体中。同
Most of our molds are made of Cr12Mo steel. In the past, due to the inability to control the heat treatment deformation, the production was affected. In recent years through repeated experiments, the system has been operating specifications, the process is as follows: Raw material preparation → roughing → quenching and finishing → finishing → heat treatment → polishing. First, the requirements of raw materials Carbide segregation of raw materials is serious, the deformation of heat treatment has a great impact. For this reason, the raw materials for which the degree of carbide segregation exceeds 4 must be forged so that the carbides are uniformly distributed in the steel base. with