本文介绍洛阳轴承厂采用保护气氛进行加热淬火,可防止工件产生氧化脱碳,还可减少废品率,为下道磨加工生产提供了有利条件,稳定、压缩现在磨削留量,使磨床生产率提高。在保护气中加热产生极其轻微均匀致密的氧化膜,减少了麻点,为精密品及一些其它产品倒角、油沟打磨工序逐步去除提供了可能性。附图14幅，表8个 This paper introduces the Luoyang Bearing Factory using a protective atmosphere for heating and quenching, to prevent oxidation decarburization of the workpiece, but also reduce the rejection rate for the next road mill production provides favorable conditions for stable, compress the current grinding capacity, so that grinder productivity . In the protection of gas heating to produce a very slight uniform and dense oxide film, reducing the pitting, precision products and some other products chamfer, oil ditch grinding process gradually removed the possibility. Figure 14 Figure, Table 8