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高铬铸铁淬火后存在着很高的残余应力,这对生产和使用都是非常有害的。本文系统地讨论了回火处理温度对松驰残余应力的作用及材料其它力学性能的影响,最后提出了新的回火热处理工艺制度。
High chromium cast iron after quenching there is a high residual stress, which is very harmful to the production and use. This paper systematically discusses the effect of tempering temperature on relaxation residual stress and other mechanical properties of the material, and finally proposes a new tempering heat treatment process system.