What does Aluminium Profile Protective Film do?

As a Modular Pipe System Manufacturer, share with you. The use of industrial aluminum profiles in chemical conversion films has a variety of benefits. The main ones are that aluminum profiles can be directly immersed in chemical conversion treatment solutions, concentrated solutions can be applied to the surface of aluminum profiles, and other methods. The required cost is relatively low. Now what I want to introduce to you is the benefits and methods of using aluminum profile chemical conversion film.

Aluminum Extrusion Profile

Aluminium Profile chemical conversion treatment is the chemical conversion treatment solution, the surface of the aluminum profile and the chemical oxidant in the solution reaction, rather than the application of voltage to generate a chemical conversion chemical treatment process. After the chemical conversion, a chemical conversion film is formed on the surface of the aluminum profile, sometimes referred to as a conversion film. In essence, the anodized film should be an electrochemical conversion film.

The chemical conversion treatment of aluminum profiles can be mainly converted into chemical oxidation treatment, salt treatment, phosphorochromate treatment, and chromium-free chemical conversion treatment. The classification of each chemical conversion treatment is based on the composition of the chemical treatment solution, regardless of the composition and structure of the resulting film. This treatment method is more in line with China's industrial practice.

The chemical conversion treatment of ytterbium can adopt the following methods:

(1) Immerse directly into the chemical conversion treatment solution;

(2) Spray the chemical treatment solution on the surface of the aluminum profile;

(3) Apply the concentrated solution on the surface of the aluminum profile.

Specific processing methods can be selected according to production conditions and processing purposes. Generally speaking, the first (1) or (2) methods are used more often.

The chemical conversion film of aluminum profile is mainly used to protect the profile and its alloy from corrosion. The chemical conversion film of aluminum can be used as a coating directly or as the bottom layer of an organic polymer coating, which has great industrial significance and has been widely used. The thickness of the chemical conversion film is much thinner than that of the anodized film, so its protective performance cannot match that of the anodized film. However, the chemical conversion process is economical, convenient and fast, the production line structure is simple, and no power supply equipment is required. It is suitable for low-cost production of large quantities of parts.

Therefore, chemical conversion treatment still has a wide application space for situations where the corrosion resistance is not too high or the use time is not very long. Some parts of automobiles and aircraft are still using chromated film, which is an example of successful application of chromate treatment. Chemical conversion treatment is a well-known process as a pre-treatment step before spraying. It not only solves the adhesion between the coating and the aluminum profile substrate, but also improves the corrosion resistance of the organic polymer coating. The role of chemical conversion film as a coating base should be emphasized.

Our company also has Aluminum Extrusion Profile on sale, welcome to consult.