Vacuum coating technology is an important branch of vacuum application technology. It has been widely used in the fields of optics, electronics, energy development, physical and chemical equipment, construction machinery, packaging, civil products, surface science and scientific research. The methods used for vacuum coating mainly include evaporation plating, sputtering plating, ion plating, beam deposition plating, and molecular beam epitaxy. There is also a chemical vapor deposition method. If the purpose of vacuum coating is to change the physical and chemical properties of the surface of the material, this technology is an important part of the vacuum surface treatment technology.
First of all, optically, after plating a film of one or more layers of different materials on an optical glass or quartz surface, it can be highly reflective or non-reflective (ie, antireflection) or any desired proportion of reflective or transmissive material. A color filter that absorbs at one wavelength and transmits to another wavelength. High-reflection films are needed from large-diameter astronomical telescopes and various lasers, to large windows coated with jasmine in new buildings. Antireflection coatings are widely used in photography and various lasers, and large window coated glass in new buildings. Antireflection coatings are used extensively on lenses for cameras and television cameras. In vacuum, vacuum coating is extremely important. Inheritance circuits of various sizes. Conductive films, insulating films, and protective films are used to include memory, arithmetic, and logic components. As a mask for preparing the circuit, a chromium film is used. Tapes, disks, semiconductor lasers, Josephson devices, and charge-coupled devices (CCDs) are also known for various films.two-stage-liquid-ring-vacuum-pump
In terms of display devices, a recording head, a high-density video tape, and a transparent conductive film of a flat display device, a photoconductive film of a camera tube, and an aluminum lining of a fluorescent screen of a display tube are also prepared by a vacuum coating method. In terms of components, nickel chrome is evaporated in a vacuum, chromium or cermet can be used to make electrical resistance, and aluminum, silicon monoxide, titanium dioxide, etc. can be evaporated on the plastic to manufacture capacitors, and evaporating selenium can be used to obtain a toner cartridge for electrostatic copying machines and evaporating barium titanate. Manufacturing magnetostrictive sounding elements and the like. Vacuum evaporation can also be used to make superconducting films and microbead coatings for inertial confinement macroreactions. In addition, it is also possible to manufacture a super-hard film for a vapor deposition decorative film such as a jewellery, a watch case surface, a textile metal pattern, a gold silk wire, and the like, and a tool, a mold, or the like by sputtering or ion plating. In the past two years, multi-arc ion plating has been used to prepare titanium alloy products, such as stainless steel sheets, mirror panels, columns, handrails, high-grade bed brackets, and stair railings, which are currently prevailing.vacuum-pump-used-in-sugar-plants
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