Research status of plastic plating-Pearl Nickel plating.
In recent years, with the rapid development of electroplating industry and the gradual change of people's aesthetic point of view, in addition to functional coatings with special needs, more and more decorative electroplating have been generally welcomed by the society. The pearl-nickel coating has a satin-like luster, giving people a soft and comfortable feeling, feel smooth, elegant and beautiful, like the surface of a pearl, deeply loved by people: = the sub-gloss color of the pearl nickel coating is slightly glossy and the color is soft, which can avoid eye fatigue, so it is widely used. Such as mobile phone shell, camera shell, handicrafts, interior decoration, household appliances decoration, auto parts, clock accessories, kitchen tableware and eye racks and so on. The decorative chromium, bright silver or bright gold is electroplated on the pearl nickel coating to form sand chromium, sand gold or sand silver, which can meet people's different interests and needs. In addition, pearl nickel satin coating has become an important protective decorative coating in Europe and the United States because of its fine structure, few pores, low internal stress, good corrosion resistance, excellent touch resistance and scratch resistance.
In the early 1960s, Europe, the United States and Japan successively published literature and patents on pearl nickel plating process and equipment, and various additives developed have been commercialized. China only began to carry out experiments and research in this area at the end of 1980s, and there are few literatures and patents, especially the research on additives is basically in the exploratory stage, and most of them buy products from outside companies in production.
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