Aluminum surface treatment There are generally anodic o […]
Aluminum surface treatment There are generally anodic oxidation, electrophoretic coating and powder coating three treatment methods, each one has its own advantages, occupy a considerable market share.
Powder coating there are several significant advantages:
1, the process is relatively simple, mainly due to the improvement of the accuracy of the main equipment in the production process, some of the major technical parameters have been able to achieve microcomputer control, effectively reducing the difficulty of process operations, while greatly reducing auxiliary equipment;
2, high yield, under normal circumstances, if the various measures properly, you can maximize the control of substandard products;
3, energy consumption decreased significantly, in the ordinary anodizing, electrophoretic coating production process, water, electricity consumption is quite large, especially in the oxidation process. Rectifier output current up to 8000 ~ 11000A between the voltage of 15 ~ 17.5V, coupled with the heat consumption of the machine itself, you need to continue to use circulating water for cooling, power consumption is often about 1000 tons, At the same time reduce the auxiliary facilities can also reduce some power consumption;
4. The pollution to water and atmosphere will be reduced, the use of flake base, sulfuric acid and other liquid organic solvents will be no longer used, the water and air pollution will be reduced, and the competitive strength between aluminum profile and plastic profile as environmental protection product will be effectively improved Reduce some production costs;
5, the labor intensity of workers significantly reduced, due to the use of automated assembly line operations, feeding methods and the use of fixtures has been significantly simplified, increased production efficiency, but also reduce the labor intensity;
6, the surface quality requirements of the wool have significantly reduced the standard, powder coating and can completely cover the extruded surface profiles, cover part of the aluminum surface defects, improve the surface quality of aluminum products;
7, some of the physical properties of the coating film than other surface treatment has improved significantly, such as hardness, wear resistance, which can effectively extend the life of aluminum.
Powder coating is used in powder coating, the process is used in electrostatic spraying, the use of friction spray gun, under the influence of accelerating wind, so that when the powder particles are sprayed gun body carrying a positive charge, and negative charge profiles contact, resulting Electrostatic adsorption, and then high temperature curing. Also enhance the adsorption strength of the paint to prevent paint film off.
From the process itself, with a very high technology ingredients, the deployment of different colors of paint, produce different color decorative effect, more in line with the needs of interior decoration, but also with the aluminum profiles in the construction industry to the development of the indoor phase Consistent. In particular, the combination of spray profile and thermal break bridge makes it more stylish and trendy, giving powder coating profiles a greater space for development and an irreplaceable alternative to profiles produced by other processing methods.