在油中淬火的真空热处理,由于具有被处理零件质量高,不污染环境及节能等优点,因此已得到了越来越广泛的应用。在此情况下,如何使淬火变形减至最小程度也已日益引人关注。与通常应用的气氛炉不同,真空炉淬火时可以按需要改变其淬火油表面压力。目前,真空油淬工艺是在真空炉内使钢 Vacuum heat treatment quenched in oil has gained more and more widespread applications due to the advantages of high quality of treated parts, no environmental pollution and energy saving. In this case, how to minimize the deformation of quenching has also drawn increasing attention. Different from the commonly used atmosphere furnace, vacuum furnace quenching can change the surface pressure of quenching oil as needed. At present, the vacuum oil quenching process is to make steel in a vacuum furnace