摘要
传统热处理的GCr15异形滚子无法满足使用要求,研究了不同软氮化处理时间对8Cr4Mo4V钢表面硬度、氮化层深度及化合物层深度的影响,结果表明:8Cr4Mo4V滚子的最优软氮化工艺为520℃×18 h,氮化后的滚子工作面硬度及耐磨性得到有效提升,并达到使用寿命。
The traditional heat treatment special-shaped rollers made of GCr15 is unable to meet use requirements.The effect of different soft nitriding treatment times on surface hardness of 8Cr4Mo4V steel,depth of nitriding layer and depth of compound layer is investigated.The results show that the optimum soft nitriding process of rollers made of 8Cr4Mo4V is 520℃×18 h.The hardness and wear resistance of working surface of rollers after nitriding are improved effectively,and the service life meet the requirements.
作者
刘汇河
宋海涛
姚颖才
李付伟
张艺
LIU Huihe;SONG Haitao;YAO Yingcai;LI Fuwei;ZHANG Yi(Luoyang LYC Bearing Co., Ltd., Luoyang 471039,China;State Key Laboratory of Aviation Precision Bearings, Luoyang 471039, China)
出处
《轴承》
北大核心
2020年第4期15-18,共4页
Bearing
关键词
滚动轴承
异形滚子
高温轴承钢
盐浴淬火
软氮化
时间
氮化层深度
表面硬度
rolling bearing
special-shaped roller
high temperature bearing steel
salt bath quenching
soft nitriding
time,depth of nitriding layer
surface hardness
