【作者】 曹浪； 左正忠； 田志斌； 詹益腾；

【Author】 Cao Lang;Zuo Zeng-zhong;Tian Zhi-bin;Zhan Yi-teng;College of Chemistry & Molecular Sciences;Guangzhou Sanfu Chemical Industry Co.Ltd.;

【机构】 武汉大学化学与分子科学学院； 广东广州市三孚化工有限公司；

【摘要】 本文介绍了一种电镀光亮Zn-Ni合金的新工艺。应用Hull cell试验、小槽电镀、扫描电子显微镜等方法,研究了溶液中Ni²⁺/Zn²⁺率、温度、pH值、阴极电流密度等对合金层中含Ni量的影响。其溶液组成是:100¹20g/l焦磷酸钾,45⁵5g/l柠檬酸钠,25³5g/l ZnSO₄.7H₂O,35⁴5g/l NiSO₄.6H₂O,0.20^.4g/l添加剂A,0.1⁰.2g/1添加剂B.实验结果表明,在T=10³5℃,pH=81⁰,D_k=0.53.0^A/dm²条件下,可得到含Ni量为12.5¹8%的光亮的、耐蚀性能好的Zn-Ni合金镀层。更多还原

【Abstract】 Abstrcat:a new process of the bright Zn-Ni alloy-electroplating was proposed in this paper.By the Hull cell tests,small bath electroplating and Scanning Electronic Microscopy（SEM）,the effects of Ni²⁺/Zn²⁺ rate in the solution,temperature,pH value,cathodic current density etc.on the content of Ni in the Zn-Ni alloys were investigated.The optimum composition of Electroplating solution was:100¹20g/l potassium pyrophosphate,45 ⁵5g/l Sodium citrate,25 ³5g/l ZnSO₄.7H₂O,35⁴5g/l NiSO₄.6H₂O,0.2⁰.4g/l additive A,0.1⁰.2g/l additive B.When the solution temperature range was at 10³5℃,pH value was in 8¹0,and the cathodic current density was at 0.5³.0A/dm²,a Zn-Ni alloy with12¹8%Ni was obtainted.更多还原