阴极电化学浸蚀去除430不锈钢板材表面硅氧层的研究  

Removal of silicon oxygen layer on surface of 430 stainless steel by cathodic electroetching

作　　者：刘振 张迪生 全一能 LIU Zhen;ZHANG Disheng;QUAN Yi’neng(Chengdu Homin Technology Co.,Ltd.,Chengdu 610091,China)

机构地区：[1]成都宏明双新科技股份有限公司,四川成都610091

出　　处：《电镀与涂饰》2023年第5期56-61,共6页Electroplating & Finishing

摘　　要：为解决传统前处理工艺难以去除430不锈钢表面硅氧层而导致后续镀镍层结合力差的问题,在卷对卷电镀生产线中引入阴极电化学浸蚀前处理工艺,并对其工艺参数进行优化。结果表明,采用2.4~3.6 mol/L盐酸溶液,以石墨为阳极,在电流密度4.7 A/dm^(2)、阳极板间距20 cm和产线运行速率5 m/min的条件下进行阴极电化学浸蚀后,有效去除了430不锈钢板材表面的硅氧层,提高了镍镀层与基材的结合力。Aiming at the difficulty of removing the silicon oxide layer on the surface of 430 stainless steel by traditional pretreatment process,which leads to the poor adhesion of subsequently electroplated nickel coating,a cathodic electroetching process was introduced into a coil-to-coil electroplating production line,and its operation conditions were optimized.The results showed that the silicon oxide layer on the surface of 430 stainless steel can be effectively removed by cathodic electroetching in a 2.4-3.6 mol/L hydrochloric acid solution with graphite as anode at current density 4.7 A/dm2,anode spacing 20 cm,and production line running rate 5 m/min,improving the adhesion between the electroplated nickel coating and 430 stainless steel substrate.

关 键 词：铁素体不锈钢 硅氧层 前处理 阴极电化学浸蚀 电镀镍 结合力 

分 类 号：TQ153.12[化学工程—电化学工业] TG175[金属学及工艺—金属表面处理]