The basic method of powder spraying equipment

Powder coating equipment is a method of spraying electrostatic powder coating particles through a spray gun to make them adsorb on the surface of the grounded workpiece for a long time, and then heating the workpiece to level and solidify. The powder spraying equipment is connected to a high-voltage negative on the metal deflector at the head of the spray gun, and the workpiece to be sprayed is grounded, so that a strong electrostatic field is formed between the spray gun and the workpiece. When the compressed air as the carrier gas sends the powder coating from the powder supply barrel to the guide rod of the spray gun through the powder pipe, the corona discharge generated by the high voltage negative is connected to the guide rod, and a dense negative charge is generated near it. , so that the powder is negatively charged, and the powder spraying equipment enters the electrostatic field with high electric field strength. Under the dual action of electrostatic force and carrier gas, the powder evenly flies to the surface of the grounded workpiece to form a thick and uniform powder layer, and then heat Curing translates into a durable coating film. This is more applicable in the steel drum industry and has achieved great success.