How many surface treatment processes do you know? Today I will share with you 21 kinds of surface treatment processes. The animation display can help us understand better. Let's increase our knowledge together.
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Micro-arc oxidation
Micro-arc oxidation, also known as micro-plasma oxidation, is through the combination of electrolyte and corresponding electrical parameters, on the surface of aluminum, magnesium, titanium and their alloys, relying on the instantaneous high temperature and high pressure generated by arc discharge, the matrix metal oxide is grown. ceramic membrane layer.
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Burning blue is to fill the whole carcass with colored glaze, and then bake it in a blast furnace with a furnace temperature of about 800 degree . The colored glaze is melted from a sandy solid into a liquid, and after cooling, it becomes a gorgeous color fixed on the carcass. Glaze, at this time, the color glaze is lower than the height of the copper wire, so it has to be filled with color glaze again, and then sintered, usually four or five times in a row, until the pattern is filled to the same level as the filigree pattern.
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Sand blasting is the process of cleaning and roughening the surface of the substrate by the impact of high-speed sand flow, that is, using compressed air as the power to form a high-speed jet beam to spray the spray material (copper ore, quartz sand, corundum, iron sand, Hainan sand) at high speed To the surface of the workpiece that needs to be treated, the appearance or shape of the outer surface of the workpiece surface is changed.
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Etching is the technique of removing material using chemical reaction or physical impact. Usually refers to etching, also known as photochemical etching, which refers to removing the protective film of the area to be etched after exposure plate making and development, and contacting chemical solution during etching to achieve the effect of dissolution and corrosion, forming the effect of concave-convex or hollow molding.
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IMD is In-Mold Decoration (in-mold decoration technology), also known as coating-free technology. It is an internationally popular surface decoration technology. The surface is hardened and transparent film, the middle printing pattern layer, the back injection molding layer, and the middle of the ink can make the product resistant to friction. , prevent the surface from being scratched, and can keep the color bright and not easy to fade for a long time.
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OMD Out Mold Decoration (Out Mold Decoration) is an abbreviation for visual, tactile and functional integration display, and a decoration technology extended by IMD. It is a 3D surface decoration technology that combines printing, texture structure and metallization characteristics.
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Electric discharge machining (EDM) is a special processing method that uses the electric erosion effect generated by the pulse discharge between the two electrodes immersed in the working fluid to erode conductive materials. Tool electrodes are usually made of electro-corrosion-resistant materials with good conductivity, high melting point and easy processing, such as copper, graphite, copper-tungsten alloy and molybdenum. During the machining process, the tool electrode also has loss, but it is less than the erosion amount of the workpiece metal, and even close to no loss.
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Laser embossing uses a high-energy-density laser to react with the surface of the steel to form snake skin/etching/pear ground or other forms of texture.
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Screen printing is to stretch silk fabrics, synthetic fabrics or wire mesh on the screen frame, and adopts the method of manual engraving paint film or photochemical plate-making to make screen printing forme. Modern screen printing technology is to use photosensitive materials to make screen printing plates by means of photographic plate making (so that the screen holes of the graphic part on the screen printing plate are through holes, and the screen holes of the non-graphic part are blocked. live). During printing, through the extrusion of the scraper, the ink is transferred to the substrate through the mesh of the graphic part, forming the same graphic as the original.
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Lithographic printing Since the graphic part and the non-graphic part of the lithographic printing are on the same plane, in order to make the ink distinguish the pattern part or the non-pattern part of the printing plate, using the principle of oil-water separation, the printing plate is first The water supply device of the part supplies water to the non-graphic part of the printing plate, thus protecting the non-graphic part of the printing plate from wetting by ink. Then, ink is supplied to the printing plate by the ink supply device of the printing part. Since the non-graphic part of the printing plate is protected by water, the ink can only be supplied to the graphic part of the printing plate. Finally, the ink on the printing plate is transferred to the skin, and then the pressure between the rubber roller and the impression cylinder is used to transfer the ink on the skin to the substrate to complete a printing. Therefore, lithography is a kind of indirect printing methods.
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