镀锌层

The result indicate that: the electrodeposition of zinc on nickel and tungsten substrates involves instantaneous three-dimensional nucleation. The coating is the best when the current density is 4mA/cm2 and the temperature is 80 ℃. The coating by the method of the impulse electrodeposition is better than the direct current electrodeposition. Especially when f is 100Hz, ton/toff is 2/8 and J is 8mA/cm2, the coating is clean and uniformity. The crystal size is nearly 0.3μ m .

结果表明：阴极反应为准可逆反应，锌离子在镍电极和钨电极上形核是三维瞬时形核半球形扩散长大过程，直流电流密度为4mA/cm2，温度为80 ℃时，镀层质量最好；脉冲电沉积得到的镀层要优于直流电沉积得到的镀层，尤其在脉冲宽度为2ms，脉冲间隔为8ms，电流密度为8mA/cm2时，得到的镀层光滑而均匀，颗粒大小接近0.3μm。

Through the test, we come to the conclusion that by using the one step pretreatment and once zincification, the film of the sample has the best adhesion; at the same time, the surface morphology has proved that the mesosphere is the thinnest.

结果表明，采用一步法前处理工艺和一次浸锌工艺的试样，镀层与基体之间具有良好的结合力，且金相显微观察也证明镀层与基体之间具有最薄的中间过渡层。

Based on practice,the author of this essay comes up with his own opinions about electroplating and reworking of unqualified zinc alloy products,and offers some experience on un-plating chemically and electrochemically.

本文在实践的基础上对锌合金工件不合格镀层返镀和修复提出了自己的看法，提供了化学退镀和电解退镀等方面的修复经验。

In this paper, the electroplating of bright Zn-Ni alloy process was studied, the effect of (1-hydroxy ethylidene diphosphonate acid coordinating agent, chloride content, [Zn2+]/[Ni2+] mole ratio, cathode current density, temperature, a class of aldehyde compound (abbreviated as ZNP additive agent) and supplementary coordinating agent on Ni content, and brightness of plating layer was discussed, the physical phase of alloy plating layer and stability of plating solution were determined.

研究了用有机多膦酸盐作络合剂，ZNP作添加剂电镀光亮锌镍合金，探讨了络合剂、氯化物含量、[Zn2+]/[Ni2+]比、阳极电流密度、温度、辅助络合剂对合金中镍含量的影响，测定了合金镀层中物相组成及镀液稳定性，通过筛选得出最佳最镀光亮锌镍合金的镀液组成及工艺条件，并讨论了锌镍合金的异常共沉积机理。

Zinc plating andnickel (16%) alloy plating were prepared on ferrous substrate by electrodepositing in a sulfate bath.

锌镍合金层具有优异的耐蚀性，从全硫酸盐体系中用电沉积的方法制备了纯锌镀层和锌镍合金镀层。

Process and mechanism of electrodeposited Zn-Fe-Si02 composite coatings were studied, including some contents as follow: Potential-pH plots of Zn-H2O and Fe-H2O systems were drawn, and the thermomechanical analysis was made. Results showed that the region of zinc and iron's codeposition was wide, which provided theoretic basis for electrodepositing Zn-Fe alloy. But the balance potential of zinc was greatly different from iron's, so in order to make zinc and iron codepositing, some complexant must be added into electroplating solution.

本文研究了电沉积Zn-Fe-SiO_2复合镀层的工艺和机理，主要包括以下几个方面：绘制了Zn-H-2O系和Pe-H_2O系的电位-pH图，并对其进行了热力学分析，结果表明，锌和铁发生共沉积的区域很大，这就对电沉积Zn-Fe合金的可能性提供了理论依据，但是锌和铁的平衡电位差别较大，所以，必须在镀液中添入一定量的配合剂才能使锌铁产生共沉积。

The new bath can plate directly on steel, copper, brass, zincated aluminum and most high quality properly prepared zinc diecastings in both rack and barrel installations. The copper deposit which plates must be fine grained, smooth, dense and ductile.

该工艺要求能够在钢铁、铜、黄铜、锌合金以及铝合金上面能直接电镀而得到细致、均匀、韧性好、结合力强的铜镀层，而且镀液也必须能适合挂镀、滚镀等多种电镀方式的需要。

The effects of cerium additive on the Zn-Fe alloy electrodeposition bath and coating were investigated.

研究了铈对电沉积锌-铁合金镀液及镀层性能的影响，通过分散能力、阴极极化曲线测定，得出在镀液中添加一定量的氯化亚铈能改善镀液性能。

Brief:Through the HKS-315 alkaline zinc-nickel alloy technology to use, bath and coating performance of the statement that the process easy to control, mature stability, and can be highly anti-corrosion coating to the conclusion.

通过对HKS-315碱性锌镍合金工艺使用方法、镀液性能以及镀层性能等方面的陈述，得出该工艺容易掌控，成熟稳定，并能得到高防腐蚀能力镀层的结论。

The Zn-AI alloy coat steel wire has higher anti-corrosion properties than the Zn-coat steel wire.

锌铝合金镀层钢丝具有比纯锌镀层钢丝耐蚀能力高的优点。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐