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前言轴承钢的质量是影响轴承寿命的主要因素,轴承成品的碳化物形态直接依赖于成品淬火前球化退火所得到的组织,所以球化退火一直被认为是轴承钢生产工序中的重要环节。目前,我国轴承钢材球化退火质量与国
Preface The quality of bearing steel is the main factor affecting the bearing life. The carbide shape of the finished bearing is directly dependent on the microstructure of the finish annealing before spheroidizing. Therefore, spheroidizing annealing has been considered as an important link in the production process of bearing steel. At present, China’s bearing steel ball annealing quality and the country