Vacuum coating machine ion nitriding and PVD coating combination application of resistance evaporation coating equipment product introduction
Vacuum coating machine combination of ion nitriding and PVD coating, plasma nitriding of vacuum coating equipment is a very effective heat treatment method for forming interface film. In the glow discharge plasma, nitrogen diffuses into the film layer to enhance the surface hardness of the workpiece. During the process, the workpiece to be treated is a cathode, and a mixed gas of hydrogen and nitrogen is introduced, and the anode is biased at a pressure of several hundred volts and a pressure of 50-500 Pa. In the cathode potential drop, since the surface temperature of the substrate is as high as 450 & deg; C or more, the nitrogen ions are accelerated and hit the surface of the substrate so that the nitrogen element penetrates into the inside of the tool.
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In this way, a nitride compound layer and a diffusion layer containing iron or chromium, molybdenum, aluminum, magnesium, and the like can be formed. Its surface hardness can reach 1000 HV or even higher. Usually the surface of the workpiece is mainly an iron-nitrogen compound called a white layer. The nitrogen content can be adjusted or even completely suppressed depending on the application to create better surface conditions for subsequent hard material coatings. The resulting diffusion layer has a very gentle reduction in hardness from the surface of the workpiece to the core at a depth of several tens of millimeters.
In the industrial deposition of hard film, the vacuum coating process of vacuum coating machine occupies a very important position because of its simplicity and convenience. During the process, the coated metal is vaporized and ionized due to the rapid movement of the generated arc at the surface boundary, and the metal ions accelerate the impact on the workpiece under the negative bias of the workpiece chassis. The arc evaporation process is a typical PVD (physical vapor deposition) process by simply using a physical method to evaporate the metal without including any intervening volatile compounds. A nitride and carbide metal film can be formed by adding a nitrogen-containing or carbon-containing gas. The film has a very high microhardness (about 2500 HV for TiN, about 2100 HV for CrN, about 3000 HV for TiCN, about 2800 HV for AlTiN), low friction and good chemical inertness.
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Vacuum coating equipment resistance evaporation coating equipment product introduction
Vacuum Coating Equipment Resistance Evaporation Coating Equipment - Working Principle
The vacuum resistance evaporation coating device melts and vaporizes a wire (aluminum wire) which is closely attached to the electric resistance wire in a vacuum chamber, and vaporizes the metal molecules deposited on the substrate to obtain a smooth high reflectance film. Layer, to achieve the purpose of decorating the surface of the article.
Vacuum coating equipment Resistance evaporation coating equipment - Application areas:
The equipment is widely used, mainly used in automotive reflective nets, hot drilling, handicrafts, jewelry, shoes and hats, watches, lamps, decoration, mobile phones, DVD, MP3, PDA casings, buttons, cosmetic shells, toys, Christmas gifts and other industries;
Vacuum Coating Equipment Resistance Evaporation Coating Equipment - Structure and Features:
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The structure can be a vertical horizontal double-opening door structure, the film forming rate is fast, the color is bright, the film layer is not easily polluted, and the film layer with good compactness, high purity and uniform film thickness can be obtained, and no waste liquid or waste water can be generated, which can be avoided. Environmental pollution is an environmentally friendly equipment.
Vacuum Coating Equipment Resistance Evaporation Coating Equipment - Plating Materials and Effects:
Machinable materials include: ABS, PS, PP, PC, PVC, nylon, metal, glass, ceramic, TPU, etc.; can be plated with: ordinary plating bright surface, matte surface (semi-dumb, full dumb), process plating Wrinkles, brushed, raindrops, multicolored, etc.