Introduction of PVD coating machine and PVD coating
Physical vapor deposition (PVD) technology is mainly divided into three categories: vacuum evaporation coating, vacuum sputtering coating and vacuum ion coating. Compared with the three major categories of PVD technology, the corresponding vacuum coating equipment includes vacuum evaporation coating machine, vacuum sputtering coating machine and vacuum ion coating machine. In the past ten years, the rapid development of vacuum ion plating technology has become one of the surface treatment methods. What we usually call PVD coating is vacuum ion coating; in general, PVD coating machine refers to vacuum ion coating machine.
What is the principle of PVD coating?
The principle of ion plating (PVD) technology is to use low-voltage high-current arc discharge technology under vacuum conditions. The target is evaporated, and the evaporated material is ionized by the gas discharge. Under the action of an electric field, the evaporated substance or its reaction product is deposited on the workpiece.
What are the advantages of PVD coating compared with traditional electroless plating (water plating)?
The similarity between PVD coating and traditional electroless plating is that both belong to the category of surface treatment, which can make one material cover the surface of another material in some way. The difference between the two is: PVD coating has greater adhesion to the surface of the workpiece, higher hardness of the coating, better wear resistance and corrosion resistance, and more stable coating performance; PVD coating can be coated with a wider range of films It can be coated with a variety of colors to make it more beautiful; PVD coating will not produce toxic or polluting substances.
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