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Aluminum Profile Deformation

By alloy composition
It can be divided into 1024, 2011, 6063, 6061, 6082, 7075 and other alloy grades of aluminum profiles, of which 6 series are the most common. The difference between different grades lies in the different proportion of various metal components. Except for the commonly used door and window aluminum profiles such as 60 series, 70 series, 80 series, 90 series, curtain wall series and other architectural aluminum profiles, there is no clear model distinction for industrial aluminum profiles, Most manufacturers process according to the actual drawings of customers
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  • 6063

  • Yurun


Extrusion is a means of profile forming. Firstly, the die is designed and manufactured according to the profile product section, and the heated round cast rod is extruded from the die by extruder. The common grade 6063 alloy also uses an air-cooled quenching process and subsequent artificial aging process during extrusion to complete heat treatment strengthening. Different grades of heat treatable strengthening alloys have different heat treatment systems.

Coloring (here we mainly talk about the oxidation process)

Oxidation: the surface corrosion resistance of extruded aluminum alloy profile is not strong, so the surface treatment must be carried out through anodic oxidation to increase the corrosion resistance, wear resistance and appearance beauty of aluminum.

The main processes are:

(1) Surface pretreatment: clean the profile surface by chemical or physical methods to expose the pure matrix, so as to obtain a complete and dense artificial oxide film. Mirror or matte (Matt) surfaces can also be obtained by mechanical means.

(2) Anodizing: for the surface pretreated profile, under certain process conditions, the substrate surface will be anodized to form a dense, porous and strong adsorption Al2O3 film.

(3) Pore sealing: seal the pores of the porous oxide film generated after anodic oxidation, so as to enhance the anti pollution, anti-corrosion and wear resistance of the oxide film. The oxide film is colorless and transparent. By using the strong adsorption of the oxide film before sealing the hole, some metal salts are adsorbed and deposited in the film hole, which can make the appearance of the profile show many colors other than the natural color (silver white), such as black, bronze, golden yellow and stainless steel.

Characteristics and properties of aluminum profiles after various surface treatment processes

Frosted fabric aluminum profile: frosted

matters needing attention

The following points shall be paid attention to when purchasing and using aluminum alloy building profile products:

1. Check the ex factory certificate of the product and pay attention to the ex factory date, specification, technical conditions, enterprise name and production license number.

2. Carefully check the surface condition of the product. The product shall have bright color and good luster, and the surface shall not have obvious scratch, bubble and other defects.

3. Pay attention to the wall thickness of the product. The product thickness of door and window materials shall not be less than 1.0mm.

4. Pay attention to the thickness of product surface coating, and the film thickness of anodized products shall not be less than 10 μ m. The film thickness of electrophoretic painting products shall not be less than 17 μ m. The coating thickness of powder spraying shall not exceed 40-120 μ M range, fluorocarbon paint spraying products shall be more than two coats, not less than 30 μ m。

5. Users in coastal areas had better choose electrophoretic coating profiles, powder spraying profiles or fluorocarbon spraying profiles with good corrosion resistance.

6. Brushes and other hard objects shall not be used as cleaning tools during daily maintenance. Soft cotton yarn and cotton cloth shall be selected.

7. Water, detergent and soap can be used for cleaning, but other organic substances cannot be used.


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