The electrostatic spray gun does not powder, not necessarily the high-pressure bag is broken. The site should first distinguish between two situations: first, the muzzle itself does not emit powder or powder intermittently, which usually gives priority to checking the air source, fluidization, powder pump, powder pipe, nozzle blockage and powder status; second, the muzzle has continuous powder fog, but the powder is not on the workpiece or poor adsorption, then focus on checking the grounding, electrodes, nozzle pollution, high-voltage cables, controller high-voltage output and high-voltage packages. The stronger signals of high-voltage package damage are usually high-voltage cannot be established, the actual voltage/current is abnormal, high-voltage alarm as soon as it is turned on, abnormal discharge, coke taste, ablation and carbonization, loss of pressure after heat engine, or failure with high-voltage module after single-variable replacement of the same model. Before completing these isolations, damage to the high-pressure package should not be directly judged.
The English edition of this article is being prepared. Please refer to the Chinese version linked above, or contact us for engineering support in English.