表面技术2012，Vol.41Issue(6)：40-43,4.
镀液组成对黄铜表面中温化学镀Ni-P合金的影响
Effects of Bath Composition on Electroless Ni-P Plating onto Brass Surface at Medium Temperature
摘要
Abstract
A electroless Ni-P plating was obtained on brass surface at medium temperature (70 ℃) in acidic nickel plating system by using nickel sulfate as main salt, sodium hypophosphite as reducing agent, lactic acid and glacial acetic acid as composite complexing agent and ammonium sulphate as accelerating agent. The effects of ratio of main salt and reducing a-gent, amount of complexing agent and accelerating agent on electroless plating were investigated. The optimal formula of bath was determined. The results show that the ratio of nickel sulfate and sodium hypophosphite significantly influence on deposition rate and hardness. In the composite complexing agent,actic acid mainly plays the role of eomplexing agent, where as glacial acetic acid mainly plays the role of buffer. Hypophosphite activity is enhanced by ammonium sulfate,which increases the deposition rate.关键词
黄铜/化学镀Ni-P/中温/镀液Key words
brass/ electroless Ni-P plating/ medium temperature/ bath分类
化学化工引用本文复制引用
谭利华,叶福东,魏喆良..镀液组成对黄铜表面中温化学镀Ni-P合金的影响[J].表面技术,2012,41(6):40-43,4.基金项目
福州大学科技发展基金资助项目(2011-XQ-013) （2011-XQ-013）
