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The friction coefficient of the surface of the vacuum PVD coating is small. The friction coefficient of the surface of the polished metal material to the steel is generally about 0.9. The friction coefficient of the vacuum PVD coating to the steel is between 0.01 and 0.6. The friction coefficient of PVD coating materials (AlCrN, AlTiN) is generally 0.4-0.6. The low friction coefficient reduces the surface friction between the vacuum PVD coated mold and the processed parts during processing, and ... read more
The currently popularized coating machine offset printing device solves the problem that the lateral tension of the substrate in the oven changes and the substrate is more easily blown off when the existing coating machine is calibrated. A correction roller for adjusting the lateral position of the substrate, wherein the correction roller is provided with a bracket, and the bracket is provided with a lateral adjustment roller. The adjustment roller can move up and down independently at least one... read more
Membrane white fog Phenomenon: After the coating is completed, there is some light white mist on the surface. If you wipe it with acetone or a mixed solution, the phenomenon will become more and more serious. Wipe with cerium oxide powder, which can be wiped off or lightened, (also: wipeable gram) Analysis: The causes of white fog outside the membrane are more complicated, and the possible causes are: ①, film structure problem: the columnar structure of the outer film is loose, and the outer ... read more
dirty grey Phenomenon: There are some points (not film material points) on the surface or inside of the lens film layer, some can be erased, and some cannot be erased. And there will be point-like peeling. cause: 1. The vacuum chamber is dirty. The air vortex at the beginning of vacuuming brings the dirty ash from the bottom plate and guard plate of the vacuum chamber to the lens, forming a gray spot layer. (In the film, it cannot be wiped off, it will peel off a little) 2. The mirror ring o... read more
6: What are the characteristics of the film-coated by PVD coating technology? Answer: The film-coated by PVD coating technology has the characteristics of high hardness, high wear resistance (low friction coefficient), good corrosion resistance and chemical stability, and the life of the film is longer; at the same time, the film can Greatly improve the appearance and decoration performance of the workpiece. 7: What substrates can PVD be plated on? Answer: PVD film can be directly plated on s... read more
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