Application of powder electrostatic spraying technology in refrigerator coating

1 Applied process equipment

The electrostatic generator is a high-voltage environment plug-in board used to reduce powder electrostatic coating

2 Problems in construction

The choice of high-voltage static electricity Generally speaking, the input voltage used to form high-voltage static electricity for spraying should be determined according to the shape, size and size

3 Process control

3.

(1) The powder size of the powder sprayer: In order to ensure the correct speed of the graphics card and the coating thickness required by the process, the powder amount of the powder sprayer needs to be adjusted appropriately

(2) Static pressure height: The static pressure of the nozzle directly affects the thickness of the coating

3.

(1) The working parts are hung up

(2) The workpiece is well grounded

(3) Prevent the powder layer from resisting ionization

(4) The powder should be free of dirt

(5) The powder is stable and the fog is uniform

4 Strategies to prevent maladies

Powder accumulation at the nozzle, serious failure of the powder feeder, inherent furnace failures, including improper operation methods, etc.

5 concluding remarks

The actual application of electrostatic spraying process has a very rich performance influencing factors, so it is necessary to control the process parameters in a targeted manner, conduct effective analysis and judgment, and then improve the quality of coatings and ensure the spraying effect
.