Various surface treatment processes and diagrams
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PVD, namely Physical Vapor Deposition, refers to the arc discharge technology that adopts low voltage and large current under vacuum conditions. It USES gas discharge to evaporate the target material and ionize both the evaporated substance and the gas. By using the acceleration of electric field, the evaporated substance and its reaction products are deposited on the workpiece.
Mechanical polishing is a method to obtain a smooth surface by cutting and removing the raised parts after polishing by plastic deformation of the material surface.
Chemical polishing is a method of eliminating wear marks, etching and leveling by selective dissolution of chemical reagents on uneven areas of sample surface.
Electro polishing is actually a method of polishing metal surface using the principle of electrochemical anodic dissolution.
Spraying is a coating method that spreads evenly and finely into droplets by means of pressure or centrifugal force through a spray gun or a dish atomizer, and is applied to the surface of the object being coated.
Powder spraying is the use of powder spraying equipment (electrostatic spray molding machine) to spray powder coating to the surface of the workpiece, under the action of electrostatic, powder will be evenly adsorbed on the surface of the workpiece, forming a powder coating.
Electroplating is the process of plating a thin layer of other metals or alloys on the surface of some metals or other materials using the principle of electrolysis.
Anodic oxidation refers to the process in which aluminum and its alloys form a layer of oxide film on aluminum products (anode) under the action of impressed current under the corresponding electrolyte and specific process conditions.
Electrophoresis is an electrophoresis coating in the Yin and Yang, under the action of voltage, charged paint ions moved to the cathode, and with the cathode surface produced by the action of alkaline substances insoluble, deposited on the surface of the workpiece.
Micro-arc oxidation, also known as micro-plasma oxidation, is the combination of electrolyte and corresponding electrical parameters, on the surface of aluminum, magnesium, titanium and its alloy by arc discharge generated by the instantaneous high temperature and high pressure, the growth of ceramic film layer based on matrix metal oxide.
Metal drawing is a kind of surface treatment method that forms lines on the workpiece surface through grinding products and plays a decorative effect.
Blueing is to fill the whole tire body glaze, to about 800 ℃ temperature of blast furnace in the charred, glaze melt into liquid by sand granular solid, after being cooled to become the rest of the world in the fixation on the tire body glaze, the glaze is lower than the height of copper wire, so need to fill out a glaze, then through sintering, generally speaking, four or five times in a row, until the tick to and choke silking flat pattern.
Shot peening is a cold processing technique in which the surface of the workpiece is bombarded with pellets and residual compressive stress is implanted to improve the fatigue strength of the workpiece.
Sand blasting is the use of the impact of high-speed flow of sand cleaning and coarsening process on the surface of the substrate, using compressed air as the power, to form a high-speed jet beam of the spraying material (copper ore, quartz sand, emery sand, iron ore, hainan) high-speed jet to need to deal with the workpiece surface, make the appearance on the surface of the workpiece surface appearance or shape change.
Etching is the removal of materials by chemical reaction or physical impact. Usually refers to etching also known as photochemical etching, refers to the exposure plate making, development, will be etched area of the protective film removal, etching in contact with the chemical solution, to dissolve corrosion, forming a concave or convex or hollow molding effect.
IMD, also known as no-coating technology, is a popular international surface Decoration technology. The surface hardening transparent film, the middle of the printing pattern layer, the back of the injection layer, the middle of the ink, can make the product resistant to friction, prevent the surface from being scratched, and can maintain the bright color for a long time is not easy to fade.
OMD (Out of Mold Decoration), short for visual, tactile and functional integration and display, and IMD extension Decoration technology, is a 3D surface Decoration technology combining printing, texture structure and metallization characteristics.
Radium carving, also known as laser engraving or laser marking, is a surface treatment process using optical principles. The use of laser beams to create a permanent imprint on a material surface or inside a transparent material.
· Electrical discharge machining
Electric discharge machining (EDM) is a special machining method which USES the electric erosion to remove the conductive material when the pulse discharge between the two poles is immersed in the working liquid. Tool electrodes are commonly used as corrosion resistant materials with good electrical conductivity, high melting point and easy processing, such as copper, graphite, copper tungsten alloy and molybdenum. In the process of machining, tool electrode also has loss, but less than the workpiece metal removal, or even close to no loss.
Laser bite is treated with high energy density laser with steel surface to form snakeshade/etched grain/pear ground or other forms of grain.
Transfer printing is one of the special printing methods, that is, the use of steel (or copper, thermoplastic plastic) intaglio, the use of silicon rubber materials made of curved pad printing head, the gravure ink dipped in the pad printing head surface, and then to the surface of the object to be pressed to be able to print words, patterns.
Screen printing is the production of silk fabrics, synthetic fabrics or wire mesh stretched on the screen frame, the use of hand-carved paint film or photochemical process. Modern screen printing technology, is the use of photosensitive materials through the process of making screen printing plate (screen printing plate on the graphic part of the screen hole for the through-hole, rather than the graphic part of the screen hole is blocked). When printing by squeegee extrusion, so that the ink through the text part of the mesh transfer to the substrate, the same as the original text.
Direct thermal printing
Direct thermal printing refers to the thermal sensitizer coated on the paper, so that it becomes a thermal recording paper, thermal recording paper in the role of heat, so that the material (colorant) changes in physical or chemical properties and get an image of a method.
The principle of heat transfer printing is to transfer digital patterns through the printer to a special ink watermark on the transfer paper, and then use a special transfer printing machine, high temperature and high pressure to transfer the patterns to the surface of goods, complete the printing of goods.
Lithography because the graphic on the lithographic parts with the graphic in the same plane, when printing, in order to make the ink to distinguish the parts or a pattern of printing design, using the principle of oil-water separation, first by the plate parts to plate the graphic part of the water supply water supply device, thus protecting the graphic part of the plate is not wetted by ink. Then, from the printing parts of the ink supply device to the plate for ink, because the plate of the non-graphic part of the water protection, therefore, ink can only be supplied to the plate of the graphic part. Finally, the ink on the printing plate is transferred to the emulsion, using the pressure between the rubber roller and the nano-imprint lithography drum, the ink on the emulsion is transferred to the substrate to complete a printing, so lithography is an indirect printing.
Curved surface printing
Curved surface printing is to put the ink into the gravure engraving text or patterns, then the text or patterns will be copied to the surface, then the surface of the text or patterns will be transferred to the molding surface, and finally through heat treatment or ultraviolet light irradiation method to make the ink curing.
Hot stamping, commonly known as "hot stamping ", refers to the hardcover book cover one or four and the back part of the hot foil materials such as text and patterns, or hot pressing method embossing on a variety of convex or concave titles or patterns.
Water Transfer Printing
Water transfer printing is a kind of printing that hydrolyzes transfer paper/plastic film with color pattern by water pressure. The technological process includes the production of water transfer printing paper, paper soaking, pattern transfer, drying and finished products.
Flat screen printing
Flat screen printing, printing mold is fixed in the square frame and has a hollow pattern of polyester or nylon screen (flower version). Flower version of the pattern can be through the color paste, no pattern is closed with polymer film mesh. In printing, the printing plate is pressed tightly on the fabric, and the printing plate is filled with color paste, which is scraped back and forth with a scraper to make the color paste reach the fabric surface through the pattern.
Calendering is also called calendering. The last step of the refinishing process. In order to improve the finish process of fabric luster, the surface of the fabric is smoothed or rolled out parallel fine diagonal lines by using the plasticity of the fiber under the condition of mixed heat. After being fed, the material is heated and melted, then formed into sheets or films, which are then cooled and rolled up. The most common calendering material is polyvinyl chloride.