When polarizing with appropriate conditions in a certain electrolyte solution using aluminum as anode

An aluminum oxide (Al 2 O 3) film is formed. This film is very hard, and has a high corrosion resistance and very few porous layers, which can be dyed in various colors. Can be.

(There are hard and soft coatings.)

After anodization, the desired color is added. The process is called coloring.

1) Electrochroming method: Electrolytic coloring after coating using electrolytic rectifier

2) Meteor law: Meteor law is not commonly used and is often used when name spreading.

3) Aqueous method: dilute organic dye in water and deposit product in the liquid

In the method of performing a polished polishing without using an external electric current, the reaction tool of chemical polishing is in the process of chemically dissolving and smoothing the surface of metal. In other words, the main ingredient of chemical polishing is phosphoric acid, also known as phosphate coating.

In chemical polishing, there is a limit to the gloss of aluminum surface.

If higher gloss is desired, electrolysis under predetermined conditions is used to make a smooth surface.

The method is electropolishing.

Painting work is divided into liquid coating and powder coating. Powder coating is a method of electrostatically painting iron and aluminum using epoxy or polyethylene powder as a raw material.

Corrosion resistance, adhesion, durability is much better than conventional liquid coating.

In particular, it is excellent in preventing corrosion and is widely used to make high-quality products. The demand is spreading as a coating method developed in the first developed countries in Europe and introduced in Korea.

Surface finishes are sanded and hairlined. Sanding is the operation of polishing the surface of the undercoat with a prescribed sand paper in order to achieve the required surface treatment purpose, and has an effect of removing surface defects, improving smoothness and adhesion. Hairline is used to enhance the product's quality by giving hairline like lines to the surface.