The role of powder spraying equipment

The main function of powder spraying equipment is to spray powder coating evenly onto the surface of the workpiece and solidify it through high-temperature baking to form a hard coating. ‌

The working principle of powder spraying equipment is to use electrostatic spraying technology to adsorb powder coating on the workpiece through corona discharge phenomenon. The specific process is as follows: the powder spraying gun is connected to the negative pole, the workpiece is grounded (positive pole), the powder coating is fed into the spray gun by the powder supply system through compressed air, and the high voltage generated by the high-voltage electrostatic generator is added to the front end of the spray gun. When the powder is sprayed out of the gun nozzle, it forms charged coating particles, which are attracted to the workpiece with the opposite polarity due to the electrostatic force. As the amount of powder sprayed increases, the charge accumulates more. When a certain thickness is reached, it will no longer continue to adsorb due to the electrostatic repulsion, so that the entire workpiece obtains a certain thickness of powder coating. Finally, the powder is melted, leveled, and solidified through high-temperature baking to form a hard coating film. ‌

Powder spraying equipment has a wide range of applications, mainly used for coating treatment of metal products, plastic products, furniture, electronic products, etc. Its advantages include: ‌High mechanical strength‌: The mechanical strength of powder spray coating is better than that of paint spraying process. ‌ ‌Strong adhesion‌: The powder coating has strong adhesion to the substrate and is not easy to fall off.

‌Strong corrosion resistance‌: The coating has good corrosion resistance.

‌Aging resistance‌: The coating can resist the influence of environmental factors such as ultraviolet rays and extend the service life.

‌Environmental protection‌: Compared with traditional painting process, the powder coating used by powder spraying equipment can be recycled and reduced environmental pollution‌.

In summary, powder spraying equipment plays an important role in industrial production, can provide high-quality coating effects, and meet the surface treatment needs of various products.