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Introduction of PVD (Physical Vapor Deposition) Technology
Author: pvd2019
Source: Zhihu

1. What is PVD coating technology?

A: PVD is the abbreviation of Physical Vapor Deposition in English, which means " physical vapor deposition" in Chinese, and refers to the film preparation technology of depositing materials on plated workpieces by physical methods under vacuum conditions.

2. What are the categories of PVD technology? What PVD coating machines are there?

Answer: PVD (Physical Vapor Deposition) technology is mainly divided into three categories: vacuum evaporation coating, vacuum sputtering coating and vacuum ion coating. Compared with the three categories of PVD technology, the corresponding vacuum coating equipment includes vacuum evaporation coating machine, vacuum sputtering coating machine and vacuum ion coating machine. Vacuum ion plating (VIP) technology has been developing rapidly in recent ten years, and it has become one of the most advanced surface treatment methods.

3: What is the principle of PVD coating?

A: Physical vapor deposition is a physical vapor reaction growth method. The deposition process is under the condition of vacuum or low gas discharge, and the coating material source is solid material. After " evaporation or sputtering" , a new solid material coating with completely different properties from the substrate is formed on the surface of the part.

4: What are the advantages of PVD coating over conventional electroless plating (water plating)?

A: The same point between PVD coating and traditional chemical plating is that both belong to the category of surface treatment, which makes one material cover the surface of another material in a certain way.

The difference between them is that the adhesion between PVD coating film and workpiece surface is greater, the hardness of the film is higher, the wear resistance and corrosion resistance are better, and the performance of the film is more stable; PVD coating can be plated on a wider range of films, can be plated out of a variety of film color is more beautiful; PVD coating will not produce toxic or polluting substances.

5: Can PVD coating replace electroless plating?

A: At this stage, PVD coating cannot replace chemical electroplating, and besides PVD coating can be directly c

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