功能三价铬镀铬的研究进展  

Advances in Functional Trivalent Chromium Electroplating

作　　者：李家柱[1] 毛祖国[2] 孙宁 

机构地区：[1]北京蓝丽佳美化工科技中心,北京100096 [2]武汉材料保护研究所,湖北武汉430030 [3]中国兵器工业新技术推广研究所,北京100089

出　　处：《电镀与精饰》2012年第11期13-16,共4页Plating & Finishing

摘　　要：介绍了最近美国关于功能性Cr(Ⅲ)电镀代替Cr(Ⅵ)硬铬电镀的科研进展。Cr(Ⅵ)电镀用于提供硬度高、抗磨损和耐腐蚀的镀层。但是,Cr(Ⅵ)槽液毒性大,对环境和人身有危害,已经得到严格的控制和监督。Cr(Ⅲ)电镀铬已经取得了可以和Cr(Ⅵ)电镀相比美的功能性,对Cr(Ⅲ)镀铬镀层的厚度、均匀性、结合力、孔隙率和抗腐蚀性能方面进行了讨论。The latest development of functional trivalent chromium plating for replacing hexavalent chromium plating in USA was introduced. The hexavalent chromium plating has been used to provide hard and durable coatings with excellent wear and corrosion resistance. But this hexavalent chromium plating was strictly supervised due to its toxic nature, harmful effect to the environment and human health. Until now, the trivalent chromium plating has the comparable properties with hexavalent chromium plating and been successfully applied in the undercarriage of airplane. Finally, the thickness, uniformity, bonding strength, porosity and corrosion resistance of trivalent chromium plating were discussed.

关 键 词：三价铬 功能性电镀 硬铬 

分 类 号：TQ153.11[化学工程—电化学工业]