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摘要：采用了赫尔槽试验的方法，研究了氯化钾镀锌的基础配方和添加剂的配方以及镀锌工艺的条件。得到了以含量为128g/L的氯化钾、64g/L氯化锌和36g/L的硼酸为基础液，0.65g/L苄叉丙酮、6.5g/L平平加、1g/LNNO扩散剂、1g/L苯甲酸钠和0.3g/L肉桂酸为添加剂的氯化钾镀锌液。利用了单因素法测定了添加剂组合物中苄叉丙酮、平平加、NNO扩散剂、扩散剂和肉桂酸对于镀层光亮度以及电流光亮密度范围的影响。表明了添加剂组合物中各个成份对于镀层的影响和作用。同时利用哈林槽试验对镀液的分散能力进行了测试，得到了镀液分散能力为53.8%，说明了镀液的分散能力并不高，同时利用管状件烧杯试验对镀液的深镀能力进行了测试，得到了镀液的深镀能力在90%以上，说明了添加剂的加入对于镀液性能的影响很大，作用很明显。通过对镀层的光亮度、脆性和结合力进行测试，说明了添加剂对于镀层的作用，从而通过这些实验获得了一个能使镀液及镀层性能良好的电镀添加剂。36808
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毕业论文 关键词： 氯化钾镀锌；添加剂；性能测试
Study on additive for potassium chloride zinc plating
Abstract: The basic formula of potassium chloride zinc plating and the formulation of additives and the conditions of the zinc plating process were studied by using the method of Hull Cell test. The boric acid content in the 128g/L potassium chloride, 64g / L chloride zinc and 36 as base fluid and 0.65g/L benzylidene acetone and 6.5g/l peregal, 1g/LNNO diffusion agent, 1g / L benzoic acid sodium and 0.3 g / L cinnamic acid as additives in potassium chloride zinc plating bath. By using the method of single factor determination of the additive composition benzylidene acetone, peregal, NNO diffusion agent, dispersing agent and cinnamic acid for coating brightness and bright current density range of influence. The effect and effect of each component of the additive composition on the coating is demonstrated. At the same time, the dispersion ability of the plating solution was tested by using the Harlem Yu trough test, and the dispersion ability of the coating was 53.8%. The dispersion of the plating solution is not high. At the same time using the tubular part of the beaker test the deep plating solution was tested. The ability of the plating bath is more than 90%. The effect of additives on the properties of the plating bath is very obvious. Based on deposit brightness, brittle and the binding force of tested, indicating that the additive for coating, thus by these experiments won the a plating solution and coating performance good electroplating additives.
KeyWords：GaLvanized；Additive；Performance test
目录
1 前言 1
1.1 课题的概况及研究意义 1
1．2 课题研究的内容及目的 1
1．3 课题在国内外研究的情况及发展趋势 1
1．4 课题主要的技术要求 3
2 氯化钾镀锌的技术原理 4
2.1 氯化钾镀锌液的基本组成 4
2.1.1 氯化锌 4
2.1.2 氯化钾 4
2.1.3 硼酸 4
2.2 添加剂的组成 5
2.2.1 主光亮剂 5
2.2.2 载体光亮剂 5
2.2.3 辅助光亮剂 6
2.2.4添加剂的机理 6
2.3 镀锌时的电极反应 7
2.3.1 溶液中锌的存在形式 7
2.3.2 阴极反应 7
2.3.3 阳极反应 7
3 工艺研究方法 8
3.1 工艺研究方法 8
3．2 试验及性能测试方法 8