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Basic flow of electroplating process

2023-06-07 09:44:24

The basic process of electroplating process is as follows: polishing → polishing → hanging → degreasing and oil removal → washing →(electrolytic polishing or chemical polishing)→ pickling and activation →(pre-plating)→ Electroplating → washing →(post-treatment)→ washing → drying → hanging → inspection and packaging.



Generally, the whole process of electroplating is divided into three parts: preparation before plating, plating itself and treatment after plating. Plating preparation includes polishing, cleaning and other preparatory work, and plating post-treatment is some essential cleaning and some additional processing. However, preparation before plating is often directly understood as the name implies to clean or improve the surface finish of the work, and is only limited to its own construction requirements. This too narrow understanding is easy to make the coating can not reach the higher quality level.




Each system has its own advantages and disadvantages, such as cyanide galvanized liquid dispersion ability and depth ability, fine coating crystallization, good binding force with the matrix, good corrosion resistance, wide process range, stable and easy operation of the plating solution is not too sensitive to impurities and other advantages. But highly toxic, serious pollution of the environment. Chloride galvanizing solution is a single salt plating solution without complexing agent. The brightness and flatness of the coating are better than other systems. High current efficiency, fast deposition speed; Low hydrogen overpotential steel such as high carbon steel, castings, forgings and so on easy plating. However, due to the weak acidity of chloride ion has a certain corrosion on the equipment, on the one hand, it will cause a certain corrosion on the equipment, on the other hand, this kind of plating solution is not suitable for the deep hole or tubular parts that need to add auxiliary anode.
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