Treatment of Coating Shrinkage

1

Shrinkage caused by incomplete oil removal in pre-treatment or incomplete water washing after oil removal, resulting in residual surfactants. The solution is to control the concentration and proportion of pre degreasing tank and degreasing tank liquid, reduce the amount of oil carried by the workpiece, and enhance the water washing effect.

2

Shrinkage caused by excessive oil content in water quality. The solution is to add an inlet filter to prevent oil leakage from the water supply pump.

3

Shrinkage caused by excessive water content in compressed air. The solution is to promptly discharge the compressed air condensate.

4

Shrinkage caused by moisture in the powder. The solution is to improve the powder storage and transportation conditions, add dehumidifiers to ensure timely use of recycled powder

5

Shrinkage caused by oil stains on the suspension chain being blown onto the workpiece by air conditioning. The solution is to change the position and direction of the air conditioning air supply outlet