快速钾盐镀锌工艺研究+文献综述
关键词：钾盐镀锌；快速镀锌；稀土添加剂
Study of Fast Zinc-electroplating in Potassium Salts Solutions
Abstract: In order to obtain a thick zinc plating layer (100μm in 40min), fast zinc-electroplating in potassium salts solutions is studied in this paper. The effects of electroplating parameters and rare earth additive on the working limiting current density is investigated. The results indicated that the increase of bath temperature and the application of stirring could increase the limiting current density and could fulfill the thicker layer in a shorter time. The rare earth additive CT added to potassium salts solution can widen the current density range and decrease the brittleness of zinc plating layer. The optimized formula to the fast zinc-electroplating in potassium salts solutions is: ZnCl2 70g/L ; KCl 200g/L ; H3BO3 70g/L; Combined brightener 10g/L; Rare earth additive CT 0.4-0.7g/L; Temperature 30 ℃; pH 5-6; Dk 0.3-10A/dm2. The aimed electroplating zinc layer with 100μm thick can be obtained when the cathode current density is not less than 9A/dm2 under the stirring condition or cathode movement.
KeyWords：zinc-electroplating in potassium salts; fast zinc-plating; rare earth additives
目 录
1 绪论 1
1.1 锌的性质 1
1.2 镀锌层的应用 1
1.3 镀锌的工艺 1
1.3.1 碱性镀锌溶液 2
1.3.2 酸性镀锌溶液 2
1.4 钾盐镀锌 3
1.4.1 钾盐镀锌工艺 3
1.4.2 钾盐镀锌主要成分 3
1.4.3 钾盐镀锌操作条件的影响 4
1.5 本课题的研究意义及研究内容 5
1.5.1 本课题的研究意义 5
1.5.2 本课题的研究内容 5
2 实验 7
2.1 实验方案 7
2.1.1 镀液的基础配方 7
2.1.2 实验仪器 7
2.1.3 工艺的基本流程 7
2.1.4 镀液的配制 7
2.2 赫尔槽实验 8
2.2.1 搅拌或阴极移动对工作电流密度范围的影响 8
2.2.2 施镀温度对工作电流密度范围的影响 8
2.3 电镀条件对电流密度工作范围及镀锌质量的影响 8
2.3.1 研究不同电流密度下镀层的性能 8
2.3.2 稀土添加剂对镀锌层质量的影响 9
2.3.3 最佳配方和工艺条件下，验证工艺的可行性 9
2.4 镀层的质量评价 9
2.4.1 镀层的光亮度 9
2.4.2 镀层的脆性 9
下一篇：碳纤维表面化学沉积铜工艺的研究