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本文论述了用食盐处理滚珠轴承钢的工艺和效果。经食盐处理后的钢液,成品钢材中的非金属夹杂物的形状,组织和分布状况以及碳化物的颗粒形态都有了明显的改善,特别是碳化物颗粒细化和均匀分布上颇为理想,因而提高了轴承的接触疲劳寿命,额定寿命L_(10),比不处理的轴承钢,提高了80％。由于不需要设备,故成本增加甚微,因此认为在缺少真空设备条件下,用食盐处理钢液的方法是可行的。
This article discusses the process and effect of salt treatment of ball bearing steel. The shape, organization and distribution of non-metallic inclusions in finished steels after molten salt treatment and the grain morphology of carbides have been significantly improved, especially on the refinement and uniform distribution of carbide particles , Thus improving the bearing contact fatigue life, rated life L_ (10), 80% higher than untreated bearing steel. Since no equipment is needed, the cost increase is small, so it is considered feasible to treat molten steel with salt in the absence of vacuum equipment.