I don't know what to buy aluminum materials. Henry came to help.

Nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; our aluminium alloy building profile products are comparable in level and type with foreign countries. Products can be divided into: anodic oxidation coloring profiles, electrophoretic paint profiles, powder spraying profiles, fluorocarbon paint spraying profiles, heat insulation profiles.
Aluminum alloy building profiles have the advantages of high strength, light weight, corrosion resistance, good decoration, long service life and rich color. Usually, the surface of a good product does not lose light or color in 20 years.

Characteristics and properties of aluminum profiles after various surface treatment processes
Grinding Fabric Aluminum Profile: Grinding surface Aluminum Profile avoids the shortcomings of light interference in architectural decoration caused by bright Aluminum Profile in certain environment and conditions. Its surface is as delicate and soft as brocade, which is very popular in the market. But the existing Grinding Material must overcome the uneven surface sand grains and can see the mould. Lack of grain.
Multi-tone surface treatment aluminium profiles: monotonous silvery white and Brown can not meet the architects with external wall decorative tiles, exterior wall latex, new stainless steel, champagne, golden, titanium gold, black, bronze) plus colored glass can make the decorative effect more beautiful. These profiles must be chemically or mechanically polished and then oxidized.
Electrophoretic coated aluminium profiles: The surface of electrophoretic coated aluminium profiles is soft and can resist the erosion of cement and mortar acid rain. 90% of Japanese aluminium profiles are electrophoretic coated.
Powder electrostatic spraying aluminium profiles: Powder electrostatic spraying profiles are characterized by excellent corrosion resistance, acid, alkali and salt spray resistance is much better than oxidation coloring profiles.

Wood grain transfer printing aluminium profiles: In electrophoretic or spray coated aluminium, through vacuum wood grain transfer printing equipment, under the pressure of high temperature and negative pressure, the ink on the transfer film sublimates heat and penetrates into the coating to make the surface of aluminium become the color of wood grain.
Matters needing attention
The following points should be noted when selecting and using aluminum alloy building profiles.
1. Check the certificate of the product leaving the factory, pay attention to the date of leaving the factory, specifications, technical conditions, the name of the enterprise and the number of the production license.
2. Look carefully at the surface condition of the product. The product should have bright color and good gloss. The surface should not have obvious scratches, bubbles and other defects.
3. must pay attention to product wall thickness, door and window material product thickness should be not less than 1.0mm.
4. Attention should be paid to the thickness of the coating on the surface of the product. The thickness of the film of the anodized product should not be less than 10μ m, that of the electrophoretic coating product should not be less than 17μ m, that of the powder spraying coating should not exceed 40-120μ m, that of the fluorocarbon paint spraying product should be more than two coatings, not less than 30μ M.
5. Coastal users should choose electrophoretic coating profiles, powder spraying profiles or fluorocarbon spraying profiles with better corrosion resistance.
6. Brushes and other hard objects should not be used as cleaning tools in daily maintenance. Soft cotton yarn and cotton cloth should be chosen.
7. wash water, wash spirit and soap, but do not use other organic substances.
Inferior quality
Extrusion defects. Due to the completeness of extrusion equipment, the maturity of extrusion process and the improper operation, defects such as bubbles, inclusions, layering, color difference and distortion will occur in the extrusion process of aluminium profiles, which will affect the quality of aluminium profiles.
The thickness of oxide film is thin. The national standard stipulates that the thickness of the oxide film of the building aluminum material shall not be less than 10um (micron). Thickness is not enough, the surface of aluminum profile is easy to rust and corrode. Some aluminium profiles without production name, factory site, production license and qualification certificate were sampled and tested. The oxide film thickness was only 2 to 4 um, and some even had no oxide film. According to experts estimate, every reduction of 1um oxide film thickness, each ton profile can reduce the cost of electricity consumption by more than 150 yuan.
The chemical composition is not qualified. Adding a large amount of miscellaneous aluminium and scrap aluminium can greatly reduce the cost, but it will lead to the unqualified chemical composition of building aluminium profiles and seriously endanger the safety of construction projects.
Reduce wall thickness. The wall thickness of 90 series push-pull window is not less than 1.4 mm according to the national standard. Some products are only 0.6 to 0.7 mm. The minimum wall thickness of aluminium profiles used in national standard is not less than 1.62 mm. Some products are only 0.97 to 1.18 mm in spot inspection.
Low quality aluminium profiles greatly reduce the sealing time, chemical reagent loss and cost, but the corrosion resistance of profiles is also greatly reduced.