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What is PVD vacuum coating?

What is PVD vacuum coating?

2021-12-18

What is PVD vacuum coating?






PVD (Physical Vapor Deposition) technology is mainly divided into three categories, vacuum evaporation coating, vacuum sputtering coating and vacuum ion coating. The vacuum coating equipment corresponding to the three major categories of PVD technology includes vacuum evaporation coating machine, vacuum sputtering coating machine and vacuum ion coating machine.


PVD coatings are similar to traditional chemical coatings. They are both surface treatments in which one material is covered by another material in some way.


The difference between the two is: PVD coating has greater bonding force with the workpiece surface, higher film hardness, better wear resistance and corrosion resistance, and more stable film performance; PVD coating can be coated with a wider variety of films, each The color of the film that can be plated is more beautiful; PVD coating does not produce toxic or polluting substances.


The film layer plated by PVD coating technology has the characteristics of high hardness, high wear resistance (low friction coefficient), good corrosion resistance and chemical stability. At the same time, the film layer can greatly improve the appearance and decorative performance of the workpiece.


The film colors that can be made by the current technology are dark golden yellow, light golden yellow, brown, bronze, gray, black, gray-black, colorful and so on. By controlling the relevant parameters in the coating process, the color of the coating can be controlled; after coating, the color value can be measured with related instruments to quantify the color, so as to determine whether the coating color meets the requirements.


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