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How does the pvd coating machine get the bright silver layer?

2020-12-21

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       Some products on the market need to be plated with a bright silver layer, but many people may be curious about how to plate a layer of silver on the workpiece? Titanium plating, chrome plating, and aluminum plating are usually the most contacted, but silver plating is still relatively small, after all, it is a heavy metal. The following Huicheng Vacuum Editor will introduce the silver coating method of the pvd coating machine in detail. I hope it will be helpful to everyone.


pvd coating machine


       How does the pvd coating machine get the bright silver layer? To get the bright silver coating, there are the following methods:
       1) Brush light. After ordinary silver plating, although the surface of the part is evenly plated and has fine crystals, it is not shiny. Only by brushing the surface of the part with a copper wire brush or a copper wire wheel can a bright silver layer be obtained.
       2) Pulse silver plating. Using pulsed power supply or periodic reversing power supply for silver plating, compared with ordinary silver plating, the obtained coating has not only fine crystals, dense coating, but also better dispersion and deep plating ability than ordinary silver plating. It can also be used without brightener In the case of, a shiny silver-plated layer can also be obtained.
       3) Bright silver plating. Whether it is cyanide silver plating or non-cyanide silver plating, as long as appropriate additives and brighteners are added, not only a full-bright silver coating can be obtained, but the coating is more detailed, the reflective performance is good, and the dispersion ability and deep plating ability of the plating solution are also improved. . By adding additives, a variety of coatings with different properties can be obtained, such as semi-bright coating, full-bright coating, improving the weldability of the coating, increasing the hardness and wear resistance of the coating, etc.
        The pvd coating machine can not only plate silver, but also plate many other coatings. This depends on the needs of the customer and the location of his work. The effect is different, and the coating layer is also different.