本文结合GCr15轴承套圈的热加工工艺,为抑制套圈停锻冷却过程中网状碳化物的析出和获得有利于促进碳化物球化的原始组织,在套圈锻热淬火与碳化物细化工艺的研究基础上,进一步探讨了碳化物细化对提高GCr15轴承寿命的作用。一、试验条件与方法试验用料为现场生产同型号轴承套圈的电弧炉Gcr15钢,其规格与化学成分见表1。原材料的冶金质量符合技术条件。 In this paper, the GCr15 bearing ring thermal processing technology, in order to restrain the ring forging cooling process of mesh carbide precipitation and access to help promote the carbide ball of the original organization in the ferrule forging quenching and carbide refinement Based on the research of technology, the effect of carbide refinement on improving the service life of GCr15 bearing was further explored. First, the test conditions and methods The test materials for the production of the same type of bearing rings on-site electric arc furnace Gcr15 steel, the specifications and chemical composition in Table 1. Metallurgical quality of raw materials in line with technical conditions.