Six unique processes of aluminum coil surface treatment

With more and more aluminum coil into our lives, we have higher and higher quality requirements for aluminum coil. What kind of aluminum coil can attract more users? Then we should work hard on the visual effect and surface treatment of aluminum coil. Here are six unique processes of aluminum coil surface treatment:

One: sand blasting (shot peening): the process of cleaning and roughening the metal surface by the impact of high-speed sand flow. This method of surface treatment of aluminum parts can make the surface of the workpiece get a certain degree of cleanliness and different roughness, improve the mechanical properties of the surface of the workpiece, so improve the fatigue resistance of the workpiece, increase the adhesion between it and the coating, extend the durability of the coating, and is also conducive to the leveling and decoration of the coating. We often see this process in various products of Apple company, and it is more and more adopted by the existing TV face shell or middle frame.

2. Polishing: a machining method that uses mechanical, chemical or electrochemical methods to reduce the surface roughness of the workpiece so as to obtain a bright and flat surface. Polishing process is mainly divided into: mechanical polishing, chemical polishing, electropolishing. Aluminum parts can be close to stainless steel mirror after mechanical polishing + electropolishing, giving people the feeling of high-grade, simple and fashionable future (of course, fingerprints are easy to leave and more care).

Wire drawing: metal wire drawing is the manufacturing process of repeatedly scraping the aluminum coil out of the line with sandpaper. Drawing can be divided into straight line drawing, random line drawing, spiral line drawing and thread drawing. Wechat for metal processing, good content, worthy of attention. The metal drawing process can clearly show every trace of fine filaments, so as to make the hair luster in the metal matte. The product has both fashion and technology sense.

Four: highlight: the diamond cutter is reinforced by the precision Carver on the main shaft of the precision Carver with high speed rotation (generally 20000 RPM) to cut parts, and local highlight areas are generated on the product surface. The brightness of the cutting highlight is affected by the speed of the milling bit. The faster the bit speed is, the brighter the cutting highlight will be. On the contrary, the darker the bit speed is, and it is easy to generate tool marks. Wechat for metal processing, good content, worthy of attention. High light and high light cutting are especially used in mobile phones, such as the iPhone 5. In recent years, some high-end TV metal frames adopt high light milling technology, coupled with anodizing and wire drawing technology, which makes the whole TV full of fashion sense and sharp sense of technology.

V. anodizing: Anodizing refers to the electrochemical oxidation of metal or alloy. After the aluminum coil is 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 surface hardness and wear resistance of aluminum, but also extend the service life of aluminum and enhance its beauty. It has become an indispensable part of aluminum surface treatment, and it is a widely used and very successful process at present.

Six: Two Color Anodizing: Two Color Anodizing refers to anodizing on a product and giving different colors to specific areas. The two-color anodizing process is complex and cost is high, but through the contrast between the two colors, it can better reflect the high-end and unique appearance of the product.

Through these six unique techniques, we can greatly improve the appearance image and quality of aluminum coil, enhance the user experience, and make more and more users like your products. If you have the needs and help in this regard, please contact us.