ã€China Aluminum Industry Network】 electrostatic powder coating method is the use of high-voltage electric field induction effect, so that the powder coating and the object to be induced and respectively charged opposite each other, so that the charged powder coating is adsorbed to the opposite charge was Above the coating, the powder coating is then melted and leveled, baked and cured to obtain a coating film coating method.
Aluminum alloy extrusions without surface treatment have a single appearance and are prone to corrosion in a humid atmosphere. Therefore, aluminum profiles are generally subjected to surface treatment, and powder coating is a major trend in the development of aluminum profiles at this stage.
Powder coating has the following advantages: 1 rich surface color, soft texture; 2 good corrosion resistance, not easy to be contaminated; 3 good weather resistance, shelf life of more than 10 years; 4 powder coating is durable, simple production. Therefore, powder coatings have been rapidly developed since they were applied on aluminum profiles. Especially in the economically developed Yangtze River Delta and Pearl River Delta, the market share of powder-sprayed aluminum profiles has exceeded 60%.
With the implementation of the national guidelines for energy conservation and emission reduction, and the awareness of cost control for aluminum extrusion companies, reducing the powder consumption of powders in aluminum spraying is an important direction for energy conservation, emission reduction and cost reduction.
There are many factors that affect the powder consumption of powders in aluminum spraying. There are two major aspects. On the one hand, it is related to the nature of the powder coating itself. On the other hand, it is closely related to the spraying process of the powder, such as the spraying process conditions, the workpiece spacing, the state of use of the equipment, the operating level of the employees, and the like.