As a necessary tool for electrostatic spraying, the performance of powder electrostatic spray gun directly determines the final spraying effect. The general spray gun is composed of a high-voltage generator, gun body, nozzle, controller fluidizing powder bucket and auxiliary air device.
High quality high-voltage generator (high-voltage module) can generate a stable and lasting high-voltage electric field to ensure that the powder particles can carry effective and sufficient negative charges and ensure their reliable adsorption on the workpiece.
The gun body and nozzle need to be made of high-quality materials to ensure that the spray gun has a relatively light quality and a long service life. The highly intelligent controller and aerodynamic auxiliary device help the spray gun to provide a reasonable air driving force for the powder to ensure the film thickness and permeability to some difficult spraying areas.
The factors that often determine the quality of spraying are as follows: first, uniform and stable film thickness; second, for special-shaped workpieces, the powder can overcome the Faraday cage phenomenon and effectively penetrate and spray.
Therefore, the performance of the spray gun will directly determine the effect of powder coating. The powder electrification and aerodynamic performance mentioned above will directly affect the final coating quality.
