铍基体快速化学镀Ni-P合金工艺研究

针对铍的特点,选用了化学镀镍技术对其进行处理.介绍了一种以稀土金属Ce和有机酸钠盐作为复合添加剂,沉积速度较快的化学镀Ni-P合金的工艺.研究了复合添加剂浓度、配位剂浓度等因素对镀速和镀层的性能的影响,检测了镀层的耐磨性、耐蚀性、结合力等性能.结果表明,所确定的镀液性能稳定,沉积速度较快,在该工艺条件下能在铍表面获得细致、均匀、结合力和耐蚀性能良好的镍-磷合金镀层.

Technology for Fast Electroless Ni-P Alloy Plating on Beryllium and Properties of the Coating

With a view to the nature of beryllium(Be),fast electroless Ni-P alloy plating was chosen to conduct the surface modification of Be.Thus the influences of the concentration of reducing agent and complexing agents and the pH value and temperature of the plating bath on the plating rate and properties of the (Ni-P) alloy coating were investigated.The wear resistance,corrosion resistance,and adhesion to substrate of the Ni-P alloy coating were examined.It was found that the plating bath had good stability and fast plating rate.It was feasible to prepare compact and uniform Ni-P alloy coating of good adhesion strength and corrosion resistance by properly controlling the plating parameters.