6 ways for surface treatment of aluminum alloy

Metal materials are used more and more in all kinds of existing products because metal materials can better reflect product quality and highlight brand value. while in many metal materials, because of its easy processing, good visual effect, and rich surface treatment methods, aluminum is the first to be adopted by various manufacturers, aluminum profile surface treatment is divided into sandblasting (forming matte pearl silver surface), polishing (forming mirror surface), drawing (forming a similar satin effect), electroplating (covering a layer of other metals), spraying (covering another non-metallic coating).

1. Sand blasting (shot blasting)

The process of cleaning and coarsening metal surfaces by the impact of a high-speed sand flow. The surface treatment of the aluminum part by this method can make the surface of the workpiece obtain certain cleanliness and different roughness, and the mechanical properties of the surface of the workpiece are improved, so the fatigue resistance of the workpiece is improved, the adhesion between the coating and the coating is increased, the durability of the coating is prolonged, and the leveling and decoration of the coating are also advantageous.

2. Polishing

A process that uses mechanical, chemical, or electrochemical means to reduce the surface roughness of a workpiece in order to obtain a bright, smooth surface. The polishing process is mainly divided into mechanical polishing, chemical polishing, electrolytic polishing. Aluminum parts with mechanical polishing + electrolytic polishing can be close to the mirror effect of stainless steel, giving people a high-grade simple, up-to-date feeling (of course easy to leave fingerprints and more care).

3. Wire drawing

Wire drawing is the process of repeatedly using sandpaper to scrape the aluminum plate out of the line. Wire drawing can be divided into straight wire drawing, random wire drawing, spiral wire drawing, thread drawing. Metal drawing process, you can clearly show each fine wire marks, so that the metal matte in the pan-fine Hair Luster, both fashion and technology products sense.

4. Highlight cutting

The Diamond Cutter is strengthened by the engraving machine on the spindle of the engraving machine which rotates at high speed (usually 20000 rpm) to cut the parts and produce the local highlight area on the surface of the product. The brightness of the bloom is affected by the speed of the milling bit, the faster the bit is, the brighter the bloom is, and vice versa, the darker and more prone to tool marks.

5. Anodic oxidation

Anodizing is the electrochemical oxidation of metal or alloy. Aluminum and its alloy form a layer of oxide film on the aluminum product (anode) under the action of the applied electric current in the corresponding electrolyte and special process conditions. Anodizing not only can solve the defects of surface hardness and wear resistance of aluminum but also can prolong the service life of aluminum and enhance its beauty. It has become an indispensable link in aluminum surface treatment, is currently the most widely used and very successful process.

6. Two-color anodizing

Two-color anodizing is the process of anodizing a product to give a particular area a different color. The process of two-color anodizing is complex and the cost is high, but the contrast of two-color anodizing can reflect the high-end and unique appearance of the product.

Leave a Comment

Your email address will not be published. Required fields are marked *