复杂不锈钢零件镀镍工艺

Nickel electroplating process for complicated stainless steel parts

提出了适合于结构复杂的不锈钢零件的镀镍工艺,其流程主要包括除油、酸洗、超声波清洗、弱腐蚀、预镀镍、镀暗镍、过酒精、烘干。介绍了各工序的溶液配方及操作条件。超声波清洗对附着于有小翻卷边、盲孔、小螺纹孔等的不锈钢零件上的油污有很好的去除效果。采用大电流冲击镀镍可防止不锈钢零件发生置换反应。

A process was developed for nickel electroplating on stainless steel parts with complicated structure.The process flow includes degreasing,pickling,ultrasonic cleaning,slight etching,nickel pre-plating,dull nickel plating,alcohol rinsing,and drying.The bath formulation and operation conditions of individual procedure were introduced.Ultrasonic cleaning has good effect on oil removal from the parts having small rolled edges,blind holes,and small screw holes.Nickel strike plating at large current is adopted to prevent replacement reaction on stainless steel parts.