Learn About 21 Surface Treatment Processes in One Article

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 its alloys, relying on the instantaneous high temperature and high pressure generated by arc discharge, the growth of matrix metal oxides of the ceramic membrane.

brushed metal

       Metal wire drawing is a surface treatment method that forms lines on the surface of the workpiece by grinding the product, which has a decorative effect.

burn blue

       Blue-burning is to fill the entire carcass with colored glaze, and then bake it in a blast furnace with a furnace temperature of about 800 °C. At this time, the color glaze is lower than the height of the copper wire, so the color glaze must be filled again, and then fired, usually four or five times in a row, until the pattern is filled to the level of the filigree pattern.

shot peening

      Shot peening is a cold working process in which the surface of the workpiece is bombarded with pellets and the residual compressive stress is implanted to improve the fatigue strength of the workpiece.

sandblasting

      Sand blasting is a process of cleaning and roughening the surface of the substrate by using the impact of high-speed sand flow, that is, using compressed air as power to form a high-speed jet beam to spray materials (copper ore sand, quartz sand, emery, iron sand, Hainan sand) at high speed. To the surface of the workpiece to be treated, the appearance or shape of the outer surface of the workpiece surface is changed.

Etching

      Etching is a technique in which material is removed using chemical reactions or physical impact. Usually referred to as etching, also known as photochemical etching, it refers to the removal of the protective film in the area to be etched after exposure to plate making and development, and contact with chemical solution during etching to achieve the effect of dissolution and corrosion, forming concave-convex or hollow molding effect.

IMD

       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 hardened transparent film, the middle printed pattern layer, the back injection layer, and the middle of the ink can make the product resistant to friction. , to prevent the surface from being scratched, and to keep the color bright and not easy to fade for a long time.

OMD

      OMD Out Mold Decoration, referred to as Out Mold Decoration, is a visual, tactile, and functional integration display. The decoration technology extended by IMD is a 3D surface decoration technology that combines printing, texture structure and metallization characteristics.

Laser carving

       Laser engraving, also called laser engraving or laser marking, is a surface treatment process using optical principles. Use a laser beam to engrave a permanent imprint on the surface or inside of a transparent material.

EDM

      Electrical Discharge Machining (EDM) is a special machining method that uses the electro-erosion effect generated by the pulse discharge between the two poles immersed in the working fluid to erode conductive materials, also known as electrical discharge machining or electro-erosion machining, English abbreviation EDM. Electrocorrosion-resistant materials such as copper, graphite, copper-tungsten alloy and molybdenum are commonly used for tool electrodes with good electrical conductivity, high melting point and easy processing. During the machining process, the tool electrode is also lost, but it is less than the amount of metal removal of the workpiece, and even close to no loss.

laser bite

      Laser engraving uses high energy density laser to react with the steel surface to form snake skin/etching/pear ground or other forms of lines.

pad printing

      Pad printing is one of the special printing methods, that is, steel (or copper, thermoplastic) gravure is used, and a curved pad printing head made of silicone rubber material is used to dip the ink on the gravure onto the surface of the pad printing head, and then to the surface of the pad printing head. Text, patterns, etc. can be printed by pressing the surface of the desired object.

screen printing

       Screen printing is to stretch silk fabric, synthetic fiber fabric or metal mesh on the screen frame, and use the method of hand-carved paint film or photochemical plate making to make screen printing plate. Modern screen printing technology uses photosensitive materials to make screen printing plates by means of photolithography (so that the screen holes in the graphic part of the screen printing plate are through holes, and the screen holes in the non-graphic part are blocked. live). During printing, through the extrusion of the squeegee, the ink is transferred to the substrate through the mesh of the graphic part to form the same graphic as the original.

direct thermal printing

       Direct thermal printing refers to applying a thermal agent to paper to make it a thermal recording paper. Under the action of heat, the thermal recording paper changes the physical or chemical properties of the substance (color developer) to obtain an image. a method.

Thermal transfer

      The principle of thermal transfer printing is to print the digital pattern on the special transfer paper with special transfer ink through the printer, and then use the special transfer machine to accurately transfer the pattern to the surface of the product at high temperature and high pressure to complete the product printing. system.

lithography

      In lithography, since the graphic part and the non-graphic part on lithographic printing are on the same plane, during printing, in order to enable the ink to distinguish the pattern part or the non-pattern part of the printing plate, the principle of oil-water separation is used. The water supply device of the component supplies water to the non-graphic part of the printing plate, thereby 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 milk skin, and then the pressure between the rubber roller and the impression cylinder is used to transfer the ink on the milk skin to the substrate to complete one printing. Therefore, lithography is a kind of indirect printing.

Curved printing

       Curved printing is to first put the ink into the engraved text or pattern gravure, then copy the text or pattern to the curved surface, and then use the curved surface to transfer the text or pattern to the surface of the molded product, and finally make it through heat treatment or ultraviolet light irradiation and other methods. The ink cures.

hot stamping

       Hot stamping, commonly known as "hot stamping", refers to the words and patterns of materials such as color foil being hot stamped on the first or fourth cover and the back part of the hardcover book cover, or the titles or patterns of various convex and concave books are embossed by hot pressing. .

water transfer

      Water transfer printing is a kind of printing that uses water pressure to hydrolyze the transfer paper/plastic film with color patterns. The technological process includes the production of water transfer printing paper, the soaking of the flower paper, the pattern transfer, the drying, and the finished product.

Flat screen printing

      Flat screen printing, the printing mold is a polyester or nylon screen (flower version) fixed on a square frame and has a hollow pattern. The color paste can be penetrated at the patterned part of the flower plate, and the mesh is closed with a polymer film layer at the non-patterned part. When printing, the pattern is pressed against the fabric, the color paste is placed on the pattern, and the scraper is used to scrape and press back and forth, so that the color paste penetrates the pattern and reaches the surface of the fabric.

Calendering

       Calendering is also called calendering. The final process of heavy leather finishing. It is a finishing process that uses the plasticity of fibers under the condition of mixing and heating to flatten the surface of the fabric or roll out parallel fine diagonal lines to improve the luster of the fabric. After the material is fed, it is heated and melted, then formed into sheets or films, which are then cooled and rolled up. The most commonly used calendering material is polyvinyl chloride.