本文叙述了GCr15钢制轴承零件在SGO新钙剂溶液中淬火后所获得的各项试验结果。轴承寿命对比试验表明,在SGO和HJ-20油中淬火的轴承额定寿命L_(10)分别为489与388h;中值寿命L_(50)分别为1126与525h。以SGO代替油作为轴承零件的淬火介质,不仅可以节约能源,防止污染,还可以改善轴承零件表层残余应力分布状态,可延长轴承寿命一倍以上。 This article describes the results of various tests obtained after quenching of GCr15 steel bearing components in a new SGO solution. The comparison of bearing life shows that the rated lifetimes of the bearings quenched in SGO and HJ-20 oils are 489 and 388h, respectively; the median lifetimes L 50 are 1126 and 525h, respectively. Using SGO instead of oil as the quenching medium for bearing parts can not only save energy and prevent pollution, but also improve the residual stress distribution on the surface of bearing parts, which can prolong the bearing life more than double.