Vacuum Pump in Coating Industry

Vacuum pump is widely used in coating industry and equipment. Vacuum coating technology is an important branch of vacuum application technology. It has been widely used in optics, electronics, energy development, physical and chemical instruments, construction machinery, packaging, civil products, surface science and scientific research and other fields. The main methods of vacuum plating are evaporation plating, sputtering plating, ion plating, beam deposition plating and molecular beam epitaxy. In addition, there are chemical vapor deposition methods. If the purpose of vacuum coating is to change the physical and chemical properties of material surface, this technology is also an important part of vacuum surface treatment technology.

In this paper, several main applications are briefly introduced. First, in optics, a layer or several layers of different materials on the surface of an optical glass or quartz can be used as a reflective or non-reflective material (i.e. antireflective film) or as a reflective or transmissive material in any desired proportion. It can also be used as a filter for absorbing one wavelength and transmitting another wavelength. High-reflective coatings are needed from large-aperture astronomical telescopes and lasers to coated jasmine on windows of new buildings. Antireflective coatings are widely used in photography and various lasers, starting with coated glass for windows of new buildings, which are needed. Antireflective film is widely used in the lens of cameras and TV cameras.vacuum-pump-in-milking-industry

Vacuum coating plays a very important role in electronics. Inheritance circuits of all sizes. Conductive film, insulating film and protective film should be used in memory, calculator and telling logic elements. The chromium film is used as the mask of the fabrication circuit. Tapes, disks, semiconductor lasers, Josephson devices, charge coupled devices (CCD) are also thrown off all kinds of thin films. In the aspect of display devices, the transparent conductive film of video head, high density video tape and plane display device, the photoconductive film of camera tube and the aluminium lining of display tube fluorescent screen are also prepared by vacuum coating method. In terms of components, evaporating nickel-chromium, chromium or cermets in vacuum can make resistors, evaporating aluminium, silicon oxide, titanium dioxide on plastics can make capacitors, evaporating selenium can get selenium drum for electrostatic copier, evaporating barium titanate can make magnetostrictive acoustic components and so on. Vacuum evaporation can also be used to fabricate superconducting films and microsphere coatings for inertial confinement giant change reactions.rotary-vane-vacuum-pump-knowledge

In addition, it can also be used to vaporize decorative films such as jewelry, watch shell surface, textile metal pattern, gold and silver wire, and to make superhard films by sputtering or ion plating on cutters and dies. In recent two years, multi-arc ion plating has been developed to prepare titanium products, such as stainless steel sheets, mirror panels, pillars, handrails, high-grade bed brackets, staircase railings and so on.