Surface treatment includes spraying, polishing, drawing, high light cutting, anodizing, two-color anodizing and other processes. The purpose of mechanical treatment is to eliminate the uneven surface of the product and remedy other bad appearance. Chemical treatment to remove the oil rust on the surface of the product, and the formation of a layer can make a better combination of film forming substances or into active metal body, to ensure that the coating has a stable state, increase the binding force of the protective layer, so as to protect the body.

1. Sandblast

The process of cleaning and coarsening metal surfaces using the impact of high-speed sand flow. This method can make the surface of the aluminum parts to obtain a certain cleanliness and different roughness, improve the fatigue resistance of the workpiece, the adhesion between the coating is strong, prolong the durability of the coating film, but also conducive to the smooth coating decoration.

2. The polishing

A process in which the surface roughness of the workpiece is reduced by mechanical, chemical or electrochemical methods in order to obtain a bright, flat surface.

3. The drawing

Metal wire drawing is a manufacturing process in which aluminum sheets are repeatedly sanded out of the wire. Drawing can be divided into straight line drawing, random drawing, spiral drawing, thread drawing.

4. High light cutting

The diamond cutter is reinforced by the fine carving machine in the high speed rotation (general speed of 20000 RPM) on the spindle of the fine carving machine to cut parts, resulting in a local highlighting area on the surface of the product. In recent years, some high-end electronic products, such as TV metal frame using high light milling process, coupled with anodic oxidation and wire drawing process, make the WHOLE TV full of fashion sense and sharp sense of science and technology.

5. Anodic oxidation

Anodic oxidation refers to the electrochemical oxidation of metal or alloy, aluminum and its alloy in the corresponding electrolyte and specific process conditions, due to the action of the impressed current, aluminum products (anode) on the formation of a layer of oxide film process. Anodic oxidation can prolong the service life of aluminum and enhance the aesthetic, is the most widely used and very successful process.

6. Dual color anodic oxidation

Two-color anodizing refers to anodizing a product and giving specific areas different colors. Double-color anodic oxidation has high cost because of its complex process. But through the contrast between the two colors, more can reflect the high-end, unique appearance of the product.