The electrostatic powder spraying machine operates based on the principle of electrostatic adsorption. When powder coating is sprayed from the spray gun, the powder particles are negatively charged by the high-voltage electrostatic field. And the coated workpiece is grounded, forming a positive potential difference. Under the traction of electric field force, negatively charged powder particles quickly and uniformly adsorb onto the surface of the workpiece, forming a flat and dense coating. Subsequently, after heating treatment in the curing furnace, the powder coating melts, flattens, and solidifies, tightly adhering to the surface of the workpiece, endowing it with excellent appearance and protective performance.
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