Surface treatment of aluminum alloy processing includes noise spraying, polishing, wire drawing, high gloss cutting, anodizing, two-color anodizing and other processes. The purpose of mechanical treatment is to eliminate the unevenness of the product surface and remedy other surface defects. Chemical treatment can remove the oil stain and rust on the surface of the product, and form a layer that can make the film-forming material better combine or combine with the active metal body, so as to ensure that the coating has a stable state, increase the adhesion of the protective layer, and thus achieve the role of protecting the body.
Processing of aluminum alloy parts
1. Sand blasting for aluminum alloy processing
The process of cleaning and roughening metal surfaces by the impact of high-speed sand flow. This method can make the surface of aluminum parts get a certain degree of cleanliness and different roughness, improve the fatigue resistance of the workpiece, have strong adhesion between coatings, extend the durability of the coating, and also be conducive to the leveling and decoration of the coating.
2. Polishing of aluminum alloy processing
It is a processing method that uses mechanical, chemical or electrochemical methods to reduce the surface roughness of the workpiece to obtain a bright and flat surface.
3. Wire drawing for aluminum alloy processing
Metal wire drawing is the manufacturing process of repeatedly scraping aluminum plates out of lines with sandpaper. Wire drawing can be divided into straight wire drawing, random wire drawing, spiral wire drawing and thread wire drawing.
4. High gloss cutting for aluminum alloy processing
The precision engraving machine is used to reinforce the diamond cutter on the high speed rotating (generally 20000 rpm) precision engraving machine spindle to cut parts, creating local highlights on the product surface. In recent years, some high-end electronic products, such as the metal frame of the TV set, have adopted the high gloss milling process. In addition, the anodizing and wire drawing processes have made the TV set full of fashion and scientific sharpness.
Aluminum alloy processing and forging
5. Aluminum alloy processing 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 (anodes) under the action of applied current. Anodizing can prolong the service life of aluminum and enhance the aesthetics. It is the most widely used and very successful process at present.
6. Double color anodizing for aluminum alloy processing
Two color anodizing refers to anodizing a product and giving different colors to specific areas. Double color anodizing has high cost due to its complex process; However, through the contrast between two colors, it can better reflect the high-end and unique appearance of the product.
