Metal Parts Anodized Aluminum Wrench Spanner

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Surface treatment of aluminum products

1. 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 obtain a certain degree of cleanliness and different roughness, and improve the mechanical properties of the surface of the workpiece, thus improving the fatigue resistance of the workpiece and increasing the gap between it and the coating. The adhesion of the coating prolongs the durability of the coating film, and is also conducive to the leveling and decoration of the coating. We often see this process in various products of Apple.

2. Polishing

Use mechanical, chemical or electrochemical effects to reduce the surface roughness of the workpiece to obtain a bright, smooth surface processing method. The polishing process is mainly divided into: mechanical polishing, chemical polishing, electrolytic polishing. Aluminum parts can be mechanically polished + electrolytically polished to be able to approach the mirror effect of stainless steel. This process gives people the feeling of high-end simplicity, fashion and future.

3、Brushing

Wire drawing is a manufacturing process of repeatedly scraping aluminum plates out of lines with sandpaper. Wire drawing can be divided into straight wire drawing, random wire drawing, rotary wire drawing, and thread drawing. The metal wire drawing process can clearly show every fine wire trace, so that the metal hair can show a fine hair gloss, and the product has a sense of fashion and technology.

4. High-gloss cutting

Using the engraving machine to reinforce the diamond knife on the main shaft of the engraving machine that rotates at a high speed (generally 20,000 rpm) to cut the parts, producing local highlights on the product surface. The brightness of cutting highlights is affected by the speed of the milling bit. The faster the bit speed, the brighter the cutting highlights, and the darker it is and the easier it is to produce knife lines. High-gloss high-gloss cutting is especially used in mobile phones, such as iphone5. In recent years, some high-end TV metal frames have used high-gloss milling technology, combined with anodizing and wire drawing technology, the TV is full of fashion and technology.

5. Anodizing

Anodic oxidation refers to the electrochemical oxidation of metals or alloys. Under the corresponding electrolyte and specific process conditions, aluminum and its alloys form a layer of oxide film on aluminum products (anode) due to the applied current. Anodizing can not only solve the defects of aluminum surface hardness and wear resistance, but also extend the service life of aluminum and enhance its aesthetics. It has become an indispensable part of aluminum surface treatment and is currently the most widely used and very successful. Craftsmanship.

6, two-color anode

Two-color anode refers to anodizing a product and giving different colors to specific areas. The two-color anodizing process is rarely used in the TV industry because of the complex process and high cost; but the contrast between the two colors can better reflect the high-end and unique appearance of the product.

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