1： Sand blasting (shot peening): the process of cleaning and roughening metal surfaces by the impact of high-speed sand flow. This method of aluminum surface treatment can make the surface of the workpiece get a certain degree of cleanliness and different roughness, improve the mechanical properties of the workpiece surface, so as to improve the fatigue resistance of the workpiece, increase the adhesion between the coating and the coating, prolong the durability of the coating, and be conducive to the leveling and decoration of the coating. This technology is often seen in Apple's various products, and is increasingly used by the existing TV case or middle frame.
2： Polishing: the use of mechanical, chemical or electrochemical methods to reduce the surface roughness of the workpiece, in order to obtain a bright, flat surface processing method. It is divided into mechanical polishing and chemical polishing. After mechanical polishing and electrolytic polishing, aluminum parts can approach the mirror effect of stainless steel, giving people the feeling of high-grade, simple and fashionable future (of course, it is easy to leave fingerprints, but more care should be taken).
3： Wire drawing: metal wire drawing is the manufacturing process of repeatedly scraping insulated pipe jackets into lines with sandpaper. Wire drawing can be divided into straight line drawing, random drawing, rotary drawing and thread drawing. Wechat of metal processing has good content and deserves attention. Metal wire drawing technology can clearly show each fine and micro wire trace, so as to make the metal matte with fine silk luster. The product has a sense of fashion and technology.
4： High gloss: the diamond knife is reinforced on the high-speed (generally 20000 RPM) main shaft of the engraving machine to cut parts, and produce local bright area on the surface of the product. The brightness of the cutting highlight is affected by the speed of the milling bit. The faster the bit speed is, the brighter the highlight will be. Otherwise, it will be darker and more likely to produce tool marks. Wechat of metal processing has good content and deserves attention. In recent years, some high-end TV metal frames have been used in high-end TV sets, such as the iPhone 5. In recent years, some high-end TV metal frames have been processed with high light milling technology. In addition, anodizing and wire drawing technology make the TV set full of fashion sense and sharp sense of technology.
5： Anodizing: Anodizing refers to the electrochemical oxidation of metals or alloys. After the insulated pipe jackets are cut into plates, a layer of oxide film is formed on the aluminum products (anode) under the action of external current under the corresponding electrolyte and specific process conditions. Anodizing can not only solve the defects of aluminum surface hardness and wear resistance, but also prolong the service life of aluminum and enhance the aesthetics. It has become an indispensable part of aluminum surface treatment and is a widely used and very successful process.
6： Two Color Anodizing: Two Color Anodizing refers to anodizing on a product and giving different colors to specific areas. Due to the complex process and high cost of two-color anodizing, the high-end and unique appearance of the product can be reflected through the comparison between the two colors.
