Know about aluminum's surface treatment

Anodic oxidation: on the surface of aluminum, a layer of alumina would be produced through electrochemical principle. This oxide film has special properties such as protection, decoration, insulation and wear resistance

Technical features:

1. Strength of the lift,

2. All colors are available,  except white color.

2. Electrophoresis: It is used for stainless steel, aluminum alloy, etc. It can make products to show various colors, keep metallic luster, enhance surface properties, and it has good corrosion resistance.

Advantage of aluminum products

1. various colors 

2. No metal texture, it can cooperate with sandblasting, polishing, wire drawing, etc;

3. Processing in liquid environment. Surface treatment of complex structure can be achieved;

4. The technology is mature.

3. Powder spraying: powder coating is sprayed on the surface of aluminum by powder spraying equipment. Under the action of static electricity, the powder will be uniformly adsorbed on the surface of aluminum to form a powdery coating; After baking and leveling, the powder coating becomes the final coating with different effects.

Advantage

1. various colors, highlight, matte are available;

2. Low cost, suitable for aluminum for building and heat exchange aluminum;

3. High utilization, 100% utilization, environmental friendly;

4. Strong ability of concealing defects;

5. Can imitate the effect of wood grain.

4. Wire drawing: It is a kind of surface treatment that to form lines on the surface of aluminum by grinding products, which shows a decorative effect.

According to the different patterns after wire drawing, it can be divided into: straight pattern wire drawing, random pattern wire drawing, ripple and spiral pattern.

Wire drawing treatment can supply metallic luster effect for aluminum surface. , and at the same time, wire drawing treatment can also eliminate the subtle defects on the aluminum surface.

5. Polishing: the surface modification by means of flexible polishing tools and abrasive particles or other polishing medium. By improving the dimensional accuracy or geometric accuracy of the work piece, smooth surface would be more smooth or shows mirror gloss, but also eliminate the gloss.

6. Roller coating

Roller coating is down on coil. By the material of coating,  it can be divided in to PE, PVDF and  Epoxy. By color of coating, coated coils can be pure color (transparent, purple, black, green etc., by standard of RAL and PANTONE) .