Ideal electrostatic powder coating equipment of corona discharge type

The three necessary conditions of high function electrostatic powder coating device are high coating efficiency, high penetration and beautiful coating film But these three conditions can not be satisfied simultaneously in the old external power carrying mode In order to achieve high coating efficiency, it is necessary to increase the coating charge and the Coulomb force to the highest level The best way is to make the applied voltage of the electrostatic spray gun to the highest level On the other hand, in order to achieve high penetration at first, increasing the spray gun voltage increases the charge of the coating, but at last, in order to reduce the Faraday effect, the applied voltage must be reduced As a result, the coating efficiency was reduced and the high coating penetration could not be fully achieved In order to obtain the effect of beautiful coating, it is necessary to reduce the applied voltage to control the back ionization caused by free radical ions, but the result often sacrifices the coating efficiency and high coating penetration.