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The working principle of powder coating
Time：
2024-12-02 12:01
Author：
Powder coating is a coating method in which the coating powder in the form of solid particles is sprayed on the surface of the object, and is melted and solidified to form a hard coating film by baking. The working principle of powder coating mainly includes two steps: electrostatic adsorption and thermal curing.
The first is the electrostatic adsorption stage. Before coating, the workpiece will be sprayed with positively charged powder coating particles by the spray gun. Since the workpiece is grounded in the spray gun, the positively charged powder coating particles will be electrostatically attracted and evenly attached to the surface of the workpiece to form a uniform thin layer of powder coating.
This is followed by the heat curing stage. After the coating powder is attached to the surface of the workpiece, the workpiece will be sent to the heating furnace for baking. At high temperatures, the coating powder will quickly melt into a liquid state, and then form a hard coating film on the surface. The baking temperature and time will be determined according to the type of paint and the material of the workpiece to ensure that the resulting coating has excellent performance and appearance.
In general, the working principle of powder coatings completes the coating process through the two steps of electrostatic adsorption and thermal curing. It has the advantages of high coating efficiency, environmental protection and good coating quality, and is widely used in various industries.
The first is the electrostatic adsorption stage. Before coating, the workpiece will be sprayed with positively charged powder coating particles by the spray gun. Since the workpiece is grounded in the spray gun, the positively charged powder coating particles will be electrostatically attracted and evenly attached to the surface of the workpiece to form a uniform thin layer of powder coating.
This is followed by the heat curing stage. After the coating powder is attached to the surface of the workpiece, the workpiece will be sent to the heating furnace for baking. At high temperatures, the coating powder will quickly melt into a liquid state, and then form a hard coating film on the surface. The baking temperature and time will be determined according to the type of paint and the material of the workpiece to ensure that the resulting coating has excellent performance and appearance.
In general, the working principle of powder coatings completes the coating process through the two steps of electrostatic adsorption and thermal curing. It has the advantages of high coating efficiency, environmental protection and good coating quality, and is widely used in various industries.
Key words：
粉末涂料
Anping Nation Wire Mesh Products Co., Ltd. is located in Anping County, Hengshui City, Hebei Province. The company was founded in 2014, and it has been 10 years now. In these 10 years, we have continuously improved and developed. We have become a modern enterprise integrating R & D, production, processing, sales and after-sales service.
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