42CrMo零件电镀针孔缺陷原因分析  

Analysis of Electroplated Pinhole Defects of Round Steel 42CrMo

作　　者：王银国 黄德伟 黎海微 程强 尹池英 WANG Yin-guo;HUANG De-wei;LI Hai wei;CHENG Qiang;YIN Chi ying(BAOWU JFE Special Steel Co.,Ltd.,Shaoguan,Guangdong,512123,P.R.China)

机构地区：[1]宝武杰富意特殊钢有限公司,广东韶关512000

出　　处：《南方金属》2025年第1期26-29,共4页Southern Metals

摘　　要：某钢厂42CrMo圆钢在下游客户电镀时产生针孔缺陷,采用光学显微镜(OM)、扫描电子显微镜(SEM)等分析手段,对表面针孔缺陷进行了宏观形貌、显微组织等分析。结果表明,大颗粒非金属夹杂物是导致表面针孔缺陷产生的主要原因。针对此类缺陷,提出了相应的改进措施。The causes of pinhole defects of round steel 42CrMo during electroplating at the customer’s factory were analyzed by means of optical microscope(OM),scanning electron microscope(SEM)and other analysis methods,such as macro-morphology and micro-structure.The analysis results show that large non-metallic inclusions are the main cause of surface pinhole defects.In view of this kind of defects,the corresponding improvement measures were put forward.

关 键 词：42CrMo 电镀 针孔缺陷 

分 类 号：TG142.1[一般工业技术—材料科学与工程]