铝基化学镀Ni-P合金工艺研究

Study on Technology of Electroless Ni-P Alloy Plating on Aluminum Substrate

通过改进铝基化学镀的前处理工艺,采用酸蚀法对铝进行前处理,在铝基上直接进行化学镀Ni-P合金,可以获得光亮、平整、结合力好的镀层。通过实验确定了铝基化学镀Ni-P合金的工艺流程,并讨论了各因素对镀层沉积速率的影响。

Pretreatment technology for electroless plating on aluminum substrate was improved. Electroless Ni-P alloy plating was conducted immediately after a special acid pickling step for the aluminum substrate, and a bright, smooth and good adhesion Ni-P alloy coating was obtained on the aluminum substrate. A technological process for electroless Ni-P alloy plating on aluminum substrate was established through experiments. Effect of various factors on deposition rate of the coating was discussed as well.