锌镍合金电镀工艺的研究+文献综述
关键词： 锌镍合金；含镍量； 耐腐蚀性； 工艺条件； 镀液含量
Zinc-nickel alloy plating process
Abstract:Zinc-nickel alloy is the last 10 years to develop a new type of protective single coating, excellent corrosion resistance, coating well distributed, and has excellent coverage ability, but also has easy blue and white, color and black blunttechnology. In addition, the zinc-nickel alloy coating has a very high hydrogen embrittlement resistance, weldability, ductility and machining fine features, very promising.Zinc-nickel alloy embroidered red smoke test began to appear in more than 1000 hours, bright coating.Suitable anode current determined through experiments, the bath temperature, Ph value, and the content of the plating solution, such as zinc, sodium, nickel, complexing agents, stabilizers, brighteners, wetting agent. Preferably a new zinc-nickel alloy electrical deposition process and bath formulations and process conditions electrodeposited zinc-nickel alloy.own by the access to information, plating nickel content of 12% -15%, its best performance. Thus can be obtained plating nickel content of 12% -15%, and with reference to the plating thickness, and the resulting conditions and the bath content is the best formula.
KeyWords: Zinc-nickel allys; Nickel content; Corrosion resistance; Process conditions; Content of the bath
目录
1引言 1
1.1课题的目的与要求 1
1.2锌镍合金的现状与趋势 1
1.3合金电镀的历史和概念 2
1.4合金电镀的应用与分类 2
1.4.1电镀功能性合金的新发展 3
1.4.2电镀防护性合金的新发展 5
1.4.3电镀装饰性合金的新发展 5
1.4.4电镀贵金属合金的新发展 6
2技术原理 6
2.1锌镍合金电沉积机理 6
2.2现有基础 8
2.3锌镍合金镍含量的影响 8
2.3.1镀层性能测试 8
2.3.2镀层耐腐蚀性试验 8
2.3.3锌镍合金的腐蚀模式 9
2.4镀层的含量与镀层耐腐蚀性的关系 9
2.5镀层的组织物相分析 10
2.6镀层各成分含量对镀层的影响 10
2.7工艺条件对镀层的影响 11
3设计的技术要求与参数 12
3.1要求研究达到目的 12
3.2设计工艺研究方法 12
4实验研究 13
4.1实验仪器与试剂 13
4.1.1主要仪器 13
4.1.2主要药品与试剂 14
4.2镀层的制备 14
4.2.1碱性锌镍合金基础液的制备 14
4.3合金电镀实验步骤 15