Electrostatic powder coating spraying

   Electrostatic powder coating spraying: powder coating particles carry negative charge near the electrode due to corona discharge. When the powder particles just leave the muzzle of the gun, the powder particles are blown out by the compressed air conveying force. When they are close to the workpiece (positive pole), the coating is firmly adsorbed on the workpiece by the electric field force. Generally, the coating thickness can reach 50 ~ 100 μ m after a few seconds. When the powder layer reaches a certain thickness, a thick negative charge shielding layer is stored on the surface, resulting in the later negative particles being repelled back the coating is no longer thickened. So far, the coating process is completed.