前言滚珠钢丝是制造轴承滚动体的主要材料,要求它应具有足够高的强度、疲劳极限;而且应具有纯净的内部组织和较高的表面质量。长期以来,影响滚珠钢丝质量的表面裂纹一直是国内重要攻关课题。多年来,我厂许多工程技术人员对于滚珠钢丝表面“裂纹”曾进行过多方面的探索 Preface Ball wire is the main material used to make rolling elements for bearings. It is required to have high enough strength and fatigue limit, and should have pure internal structure and high surface quality. For a long time, the surface crack that affects the quality of ball wire has always been an important research topic in China. Over the years, many engineers and technicians in our factory have conducted many aspects of “crack” on the surface of ball wire