PVD is the abbreviation of English Physical Vapor Deposition, the Chinese means "physical vapor deposition", refers to the vacuum conditions, the physical method of deposition of materials in the workpiece on the film preparation technology.
PVD (physical vapor deposition) coating technology is divided into three categories, vacuum evaporation coating, vacuum sputtering and vacuum ion plating. Corresponding to the three categories of PVD technology, the corresponding vacuum coating equipment also have vacuum evaporation coating machine, vacuum sputtering coating machine and vacuum ion plating machine three.
Over the past decade, the development of vacuum ion plating technology is particularly fast, it has become one of today's advanced surface treatment. Usually referred to as PVD coating, refers to the vacuum ion plating; commonly referred to as PVD coating machine, refers to the vacuum ion coating machine.
PVD coating (ion plating) technology, the specific principle is in the vacuum conditions, the use of low voltage, high current arc discharge technology, the use of gas discharge to the target evaporation and evaporation of substances and gas are ionization, the use of electric field acceleration So that the evaporated material and its reaction product are deposited on the workpiece. The film is coated with PVD coating technology, with high hardness, high wear resistance (low coefficient of friction), good corrosion resistance and chemical stability characteristics, the longer the life of the film; while the film can be substantial Improve the appearance of the workpiece decorative performance.
PVD coating technology
(Such as aluminum, titanium, zirconium, chromium, etc.), nitride films (TiN, ZrN, CrN, TiAlN, TiN, ZrN, CrN, TiNN), and the like, ) And a carbide film (TiC, TiCN), and an oxide film (e.g., TiO, etc.). PVD coating film thickness of microns, the thickness is thin, generally 0.3μm ~ 5μm, which decorative coating film thickness is generally 0.3μm ~ 1μm, so you can almost affect the original size of the workpiece to improve the workpiece surface Of the various physical properties and chemical properties, no longer need to be processed after plating. PVD coating can now make the color of the film is deep golden yellow, light golden yellow, brown, bronze, gray, black, gray black, seven color and so on. By controlling the relevant parameters in the coating process, you can control the color of the plating; after the end of the coating can be used to measure the color of the instrument, so that the color can be quantified to determine whether the color of the plating to meet the requirements