Release time:

Vacuum coating technology is an important branch of vacuum application technology, which 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 used in vacuum coating are evaporation plating, sputtering plating, ion plating, beam deposition plating and molecular beam epitaxy. In addition, there is 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 vacuum surface treatment technology.

Now on its several main applications to do a brief introduction. First of all, in terms of optics, a piece of optical glass or quartz is coated with one or several layers of different substances on the surface, which can become highly reflective or non-reflective (ie, antireflection film) or any expected proportion of reflective or transmissive materials. It can also be used as a color filter that absorbs a certain wavelength and transmits another wavelength. High reflective films are needed from large-aperture astronomical telescopes and various lasers to jasmine coating on large windows of new buildings. The antireflection film is widely used in photography and various lasers, all the way to the large window coated glass of new buildings. A large number of antireflection films are used on the lenses of cameras and television cameras. Vacuum coating plays an extremely important role in electronics. Succession circuits of all sizes. Including memory, arithmetic unit, tell logic element and so on to use conductive film, insulating film and protective film. The chromium film is used as a mask for preparing the circuit. Tape, disk, semiconductor laser, Josephson device, charge coupled device (CCD) are also a variety of thin film tunnel. In terms of display devices, video heads, high-density video tapes, transparent conductive films for flat display devices, photoconductive films for camera tubes, and aluminum liners for display tube fluorescent screens are also prepared by vacuum coating. In terms of components, evaporation of nickel chromium, chromium or cermet in vacuum can make resistors, evaporation of aluminum, silicon monoxide, titanium dioxide, etc. on plastic can make capacitors, evaporation of selenium can get toner cartridges for electrostatic copiers, evaporation of barium titanate can make magnetostrictive acoustic components, and so on. Vacuum evaporation can also be used to fabricate superconducting films and microbead coatings for inertial confinement macrotransformation reactions. In addition, it can also be used for evaporation decoration films such as jewelry, watch shell surfaces, textile metal patterns, gold and silver wires, etc., as well as for the manufacture of super-hard films by sputtering or ion plating on knives, molds, etc. In the past two years, the rise of multi-arc ion plating preparation of titanium gold products, such as stainless steel sheet, mirror panels, package columns, handrails, high-grade bed brackets, stair railings, etc. are currently prevailing.