化学镀镍磷镀层的着色处理

Colorization of chemical deposition for Ni -P alloy

采用热氧化着色法、化学浸渍法、化学染色法3种处理工艺对化学镀Ni—P合金试件进行了着色处理,获得了具有紫铜色、黄色、蓝色、绿色、黑色等色彩的Ni—P合金装饰镀层。经过400℃热氧化处理后该试件的维氏硬度仍可达到930,着色的镀层在强酸、强碱、腐蚀性极强的盐和有机酸中均表现出较好的耐蚀性能。实验结果表明,对化学镀Ni—P镀层着色处理,可以得到既具有优良化学性能又具有装饰性能的镀件。

Three techniques of color plating, thermoxidation, chemical soakage and chemical dyeing are adopted, the Ni-P alloy decorated with a series of colors of copper, yellow, blue, green, black are obtained. After thermal oxidation treatment under 400 癈 , they achieve high hardness (930HV) and have excellent wear resistance and good corrosion resistance in acidic and caustic solutions. The results show that after colorization, the Ni-P alloy possesses excellent chemical and decorating properties.