The principle of electrostatic spraying

During electrostatic spraying, the spray gun is connected to the negative electrode, and the workpiece is connected to the positive electrode and grounded. Under the action of the high voltage of the high-voltage power supply, an electrostatic field is formed between the end of the spray gun and the workpiece. Electrostatic spraying is a spraying method that uses a high-voltage electrostatic field to make the negatively charged paint particles move in the opposite direction of the electric field, and uniformly adsorb the paint particles on the surface of the workpiece. Powder coatings are different from ordinary solvent-based coatings and water-based coatings. Its dispersion medium is not solvent and water, but air.