Why need to do powder coated aluminium profiles

1. The higher the purity, the better the corrosion resistance. As we all know, pure aluminum reacts with oxygen in the air and produces a thin and dense natural oxide film on the surface of aluminum, which is faster and faster than other metal oxide films. It is much thicker, which prevents the corrosion of harmful gases and moisture in the air and plays a protective role;

2. Although powder coated aluminium profiles has good corrosion resistance, it has poor mechanical strength, which restricts the application of aluminum profile to a certain extent. Therefore, people add appropriate amounts of magnesium, copper, zinc and other metals to aluminum extrusion to make various types aluminum extrusion profile has high mechanical strength, which greatly improves the mechanical strength of extruded aluminum and greatly expands its application range. Although aluminum alloy has high mechanical strength, its corrosion resistance is worse than pure aluminum, so it may be corroded due to oxidation. This requires powder coating to protect aluminum alloy profiles. Powder coated aluminium profiles have been widely used in building doors, windows, curtain walls and other products for many years because of their small specific gravity, easy processing, and high mechanical strength. ,

After finished as powder coated aluminium profiles have many advantages such as high corrosion resistance, diversified colors, and good surface texture, which echoes with different exterior wall paints to build colorful buildings.

Seven advantages of in powder coated aluminium profile processing

1. The process is relatively simple, mainly due to the improvement of the automatic accuracy of the main equipment in the production process, and the microcomputer control of some main technical parameters can be realized, which effectively reduces the difficulty of process operation, and the auxiliary equipment is greatly reduced;

2. The yield rate is high. Under normal circumstances, if the various measures are appropriate, the occurrence of nonconforming products can be controlled to a greater extent;

3. Energy consumption is significantly reduced. In the production process of ordinary anodizing and electrophoretic coating, the consumption of water and electricity is quite large, especially in the oxidation process. The output current of the rectifier can reach between 8000-11000A, and the voltage is between 15-17.5V. In addition to the heat consumption of the machine itself, it needs to be continuously cooled with circulating water, and the electricity consumption per ton is often 1000 degrees At the same time, the reduction of auxiliary facilities can also reduce some power consumption;

4. The degree of pollution to water and atmosphere is reduced. Caustic soda, sulfuric acid and other liquid organic solvents are no longer used, reducing water and air pollution, and effectively improving the competitiveness of aluminum profiles and plastic steel profiles as environmentally friendly products. Reduced some production costs;

5. The labor intensity of workers has been significantly reduced. Due to the use of automated assembly line operations, the feeding method and the use of fixtures have been significantly simplified, which improves production efficiency and reduces labor intensity;

6. The requirements for the surface quality of the wool have been significantly reduced, and the powder coating can completely cover the extrusion lines on the surface of the profile, conceal some of the defects on the surface of the powder coating aluminum profile, and improve the surface quality of the finished powder coated aluminum profile;

7. Some physical indicators of the coating film are significantly improved compared with other surface treatment films, such as hardness and wear resistance, which can effectively extend the service life of aluminum profiles.

Powder spraying uses powder coatings. Electrostatic spraying is used in the process. The friction spray gun is used to make the powder particles carry a positive charge when they are sprayed out of the gun body and contact the negatively charged aluminum profile. Electrostatic adsorption, then high temperature curing. It also enhances the adsorption strength of the paint and prevents the paint film from falling off.

From the perspective of the process itself, it has a fairly high technological composition, and the blending of paints of different colors produces decorative effects of different colors, which is more in line with the needs of interior decoration, and is also in line with the development trend of powder coated aluminium profiles in the construction industry. Consistent. In particular, the combined use of sprayed profiles and thermally insulated bridges makes it more fashionable and gives powder sprayed aluminum profiles more room for development. It is also irreplaceable for profiles produced by other processing methods.

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