Machine Polishing Silver Oxide Aluminium Extrusions 6063 T5 Aluminium Profiles Building Materials

Method of Aluminum Polished:

Common polishing method for aluminum products - mechanical polishing

Principle of mechanical polishing:

After the polishing wheel is added with polishing paste, the surface of aluminum parts is polished on a high-speed polishing machine. The friction between the high-speed rotating polishing wheel and the workpiece produces high temperature, which causes plastic deformation on the metal surface, thus flattening the convex and concave points on the metal surface, and at the same time, the extremely thin oxide film on the metal surface generated instantaneously under the oxidation of the surrounding atmosphere is repeatedly ground down, thus becoming more and more bright.

Why polishing?

In the processing of aluminum products, anodizing is usually used as the last process to protect aluminum products. Because the aluminum alloy is easy to oxidize. Although the oxide layer has a certain passivation effect, the oxide layer will peel off and lose its protective effect under long-term exposure. Therefore, the anodic treatment is to control the formation of the oxide layer by chemical methods using its easy oxidation characteristics to prevent further oxidation of the aluminum material and increase the mechanical properties of its surface.

Profiles Details:

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.

Aluminium Window Door Profiles:

The aluminum alloy doors and windows we often say refer to the doors and windows made of aluminum alloy extruded profiles, window frames, mullions, and sashes. They are called aluminum alloy doors and windows, and are now also referred to as aluminum doors and windows. Compared with doors and windows made of other materials, aluminum alloy doors and windows have natural advantages.

01. Aluminum alloy doors and windows have light deadweight and high strength:

Aluminum alloy materials are mostly hollow thin-walled composite sections, which are easy to use, reduce weight, have a density of only 1/3 of steel, and the section has high bending strength. The doors and windows made of aluminum alloy materials are durable and have little deformation.

02. Good sealing performance of aluminum alloy doors and windows

The airtightness directly affects the use function and energy consumption of doors and windows. Sealing performance includes air tightness, water tightness, heat insulation and sound insulation.

03. Beautiful appearance of aluminum alloy doors and windows

After anodizing, the aluminum alloy surface can show the colors of ancient lead liver copper, gold, silver white, etc., which can be selected at will. The oxidized surface is bright and bright. The window sash frame is large and can be inlaid with large area of glass, which makes the indoor light sufficient and bright, enhances the contrast between the virtual and real facades between indoor and outdoor, and makes the room more layered.

Photos:

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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.