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一、模具保护气体热处理的意义热处理过程中发生的表面氧化、脱碳或增碳,都要严重地影响模具的工艺性能和使用寿命。如何防止上述缺陷一直是模具热处理中的一个重要问题。真空热处理是行之有效的方法之一,同样保护气氛热处理也是一种较好的方法。国外在发展真空热处理之前,早已普遍使用控制气氛处理模具。目前虽然发展了真空热处理技术,而模具控制气氛热处理仍在使用。两者相比,保护气氛热处理也有其优点:如
First, the significance of the mold protective gas heat treatment Surface oxidation, decarburization or carbon by the heat treatment process, have a serious impact on the mold process performance and service life. How to prevent the above defects has always been an important issue in the mold heat treatment. Vacuum heat treatment is one of the effective methods, the same protection atmosphere heat treatment is also a better method. Abroad before the development of vacuum heat treatment, the control atmosphere has long been widely used to deal with mold. Although the current development of vacuum heat treatment technology, and mold control atmosphere heat treatment is still in use. Compared to the two, the protective atmosphere heat treatment also has its advantages: