Matt Silver Anodized Aluminum Profiles For Construction Multi Shapes Extrusion

Product Specification

Matt Silver Anodized Aluminum Profiles For Construction OEM Multi Shapes Extrusion

Profiles Details:

Aluminum Surfaces:

Oxidation Types:

1. Chemical oxidation

At a certain temperature, a thin oxide film is formed on the surface of aluminum alloy profile through chemical reaction, which is called chemical oxidation of aluminum. This method does not need to pass through current, and the process is simpler and cheaper than electrochemical oxidation. The oxide film is very thin, and the film thickness is 0.5~4 μ M or so, the film is soft and has low wear resistance, so it cannot be used alone. The film has good physical adsorption capacity and is a good primer. The protective layer obtained by chemical oxidation can greatly improve the protective ability of parts.

2. Anodic oxidation method

Anodizing of aluminum alloy profile is made by electrolysis in oxalic acid, sulfuric acid and chromic acid aqueous solution with aluminum or aluminum alloy as anode and lead, carbon or stainless steel as cathode. Electro anodic oxidation can obtain film-forming speed that is difficult to obtain by natural oxidation. In the process of oxidation film formation, two processes occur at the same time: one is the formation of Al2O3 oxide film on the surface of aluminum plate; Second, the formation process of oxide film is accompanied by the dissolution of oxide film. Only when the formation rate of the oxide film exceeds its dissolution rate can a certain thickness of the oxide film be obtained, and the thickness of the film is generally 5~15 um. The film is a double-layer structure consisting of a dense barrier layer and a porous layer with a columnar structure. Anodic oxidation films of aluminum alloy profiles can be divided into two categories: porous films formed in acid electrolyzers such as sulfuric acid and oxalic acid, forming micropores perpendicular to the surface; Barrier film is a porous and extremely thin film formed in electrolyte, such as ammonium borate, which is commonly used in electrolytic capacitors.

Aluminum Process:

In the process of metal surface treatment, the brightness of the aluminum alloy surface affects the aesthetics and price of the product. In order to improve the aesthetics, quality and price of aluminum alloy manufacturers, aluminum alloys need to carry out a series of cleaning. So, what cleaning of aluminum alloy can be brightened?

The aluminum alloy bright cleaning process includes oil removal, chemical polishing, passivation and other processes.

Aluminum alloy oil removal process:

The aluminum alloy parts to be washed are submerged in the tank liquid of the aluminum alloy degreaser, let stand for a few minutes, and after removal, wash them with water.

In the process, the aluminum degreaser used is an industrial cleaning agent specially used to clean the oil, dirt and oxide film on the surface of aluminum alloy products. After the treatment of aluminum degreaser, the surface surface of the aluminum alloy shows a consistent white aluminum alloy color. The aluminum alloy degreaser is weakly acidic and can be used at room temperature without heating. In just one process, the oil and oxide scale on the surface of the aluminum alloy can be cleaned.

Photos:

Please tell us the information below, and we will give the best suggestion to you !

1. Where you intend to use the aluminium profiles?

2. If you have the estrusion drawing, send us and we develop the correspondence mold.

3. Which color you want or tell us the architectural style you like.

4. Purchase quantity. It will convenient us to give you the best price.