无氰碱性镀锌故障排除3例  

Troubleshooting for three failure cases of cyanide-free alkaline zinc electroplating

作　　者：张小勇 李文绪 曹聚涛 贾保松 刘新伟 王伟党 ZHANG Xiao-yong;LI Wen-xu;CAO Ju-tao;JIA Bao-song;LIU Xin-wei;WANG Wei-dang(Henan Beifang Xingguang Electromechanical Co., Ltd., Dengzhou 474150, China)

机构地区：[1]河南北方星光机电有限责任公司

出　　处：《电镀与涂饰》2019年第9期437-441,共5页Electroplating & Finishing

摘　　要：描述了3例无氰碱性镀锌故障(包括三价铬黑色钝化后出现白点,三价铬白色钝化后偏暗和有黑点,以及三价铬黑色钝化后表面粗糙)的排除过程,给出了解决措施。The troubleshooting processes for three cases of failure in cyanide-free alkaline zinc electroplating were introduced, including white dot formation after black trivalent-chromium passivation, dull appearance and black dot formation after white trivalent-chromium passivation, and rough surface formation after black trivalent-chromium passivation. Corresponding solutions were given.

关 键 词：无氰碱性镀锌 三价铬钝化 工艺管理 故障排除 

分 类 号：TQ153.15[化学工程—电化学工业]