197726铁路货车轴承成品零件应进行高温磷化处理,形成的磷化膜经浸油处理后,作为轴承零件表面的防护层,可提高轴承的抗蚀性能,并能减小金属表面的摩擦系数,提高轴承的润滑性和抗磨损性能,增强轴承的使用安全性,延长轴承的使用寿命。目前铁路货车轴承成品零件磷化多采用锰系高温 197726 Railway freight car bearing finished parts should be high temperature phosphating treatment, the formation of phosphating film after oil immersion treatment, as the bearing parts of the surface of the protective layer can improve the bearing corrosion resistance and reduce the metal surface friction coefficient, Improve bearing lubricity and wear resistance, enhance the use of bearing safety, extend bearing life. At present, the finished product of railway truck bearing phosphating uses manganese high temperature