钢铁件直接化学浸镀仿金工艺研究

采用化学抛光＋化学浸镀仿金工艺组合，研究成功一种新的钢铁件直接化学浸镀仿金工艺，探讨了化学镀仿金液中主要成分硫酸铜、硫酸亚锡、配位剂、稳定剂等及工艺条件温度、施镀时间对仿金层质量的影响，检测了仿金层的相关性能，研究确定的工艺规范如下：8～10g／LSnSO4，1．6～2．0g／LCuS04，10～15g／L配位剂，10～20mL／LH2SO4，10～12mL／L稳定剂XT-08，温度：15～35℃，时间10～15min，所形成的仿金层色泽均匀，达18～22K，装饰效果好，且工艺操作简单，镀液无毒，对环境污染小，且仿金镀液成分简单，操作简便，因而具有广阔的应用前景．

Technology for Electroless Imitation Gold Plating on Iron and Steel

Chemical polishing technique is combined with electroless imitation gold plating technique to prepare gold-imitation layer on iron and steel. The effects of plating bath composition and technology con- ditions on gold-imitation layer quality are investigated. It is found that the optimized bath for electroless imitation gold plating is composed of 8~10 g/L SnSO4, 1.6~. 0 g/L CuSO4, 10~15 g/L complexing a- gent, 10~20 mL/L H2SO4 and 10~12 mL/L stabilizer, and the optimized temperature and time are 15~ 35 ℃ and 10~15 min respectively. The resulting gold-imitation layer has uniform color and good decora- tion efficacy. Moreover, the technology has advantages of simple operation, non-toxic bath and little envi- ronmental pollution.