How About Powder Electrostatic Spraying Process

Electrostatic spraying powder is one of the most widely used coatings at present. The electrostatic spraying process of powder is adopted by many industries.

What is the Working Principle of Powder Electrostatic Spraying?

Electrostatic powder spraying has DC high voltage electrostatic generator, spray gun, powder system, powder recovery system and other components. The sprayed workpiece should be grounded as the positive electrode, and the discharge needle is connected at the powder outlet of the spray gun. The negative high voltage generated in the gun will produce corona discharge through the discharge needle. At this time, the powder particles with negative charge reach the surface of the workpiece under the action of static electricity and compressed air flow. Due to the attraction of electrostatic force, the powder is uniformly adsorbed on the surface of the workpiece for a long time without falling off. Then the workpiece enters the curing furnace for leveling and curing, and the humidity or time is well controlled. Finally, a uniform, smooth and dense coating is formed, which is tightly and firmly combined with the workpiece.

After the powder electrostatic spraying process, the workpiece is more excellent in use and more unique in performance. Electrostatic spraying powder is a good method of high protection and decoration, which is environmentally friendly, non-toxic, non irritating and will not damage the health of construction personnel.

Powder electrostatic spraying process generally needs several steps, such as pretreatment, powder spraying, drying and solidification, cooling and inspection. Pretreatment is a very important aspect. Pretreatment process is a relatively complex process, generally including degreasing, water washing, derusting, water washing, surface conditioning, phosphating, water washing, drying and so on, Electrostatic powder spraying is not allowed.

Powder electrostatic spraying process is also known as electrostatic spraying, which can reduce the degree of environmental pollution; The economic benefit of electrostatic spraying powder is remarkable, and it can be recycled; Powder electrostatic spraying process can save more energy, it does not need to spray many times, spraying time is short; It also has excellent coating effect. It is the best process now. The workpiece made by this process can be corrosion-resistant, strong impact resistance, and very reliable and safe to use.