How to do a good job before the color paint screws?

Three points of attention before the spray treatment process of baby carriage screws: What is spray. Spraying is a coating method that is dispersed into uniform and fine droplets through a spray gun or a dish atomizer and applied on the surface of the coated object by means of pressure or centrifugal force.

Two: hardware spraying process selection. Hardware spraying can be divided into air spraying, airless spraying, electrostatic spraying and various derivative methods of the above basic spraying forms, such as large flow low pressure atomization spraying, thermal spraying, automatic spraying, multi-group spraying and so on. The spraying treatment method should be based on the use of different materials.

Three: conventional hardware stroller screw spray before treatment. Degreasing and oil removal → water washing → pickling and rust removal → water washing → neutralization → water washing → surface conditioning → phosphatizing → water washing → drying → Painting/electrostatic spraying (the time used in the degreasing and rust removal process under conventional conditions must be greater than 25 minutes per process).

1: When there is no corrosion of the workpiece, the processing process is as follows. Pre-oil removal → oil removal → hot water washing → cold water washing → cold water washing → Pre-surface adjustment → surface adjustment → phosphating → cold water washing → pure water washing (1)→ pure water washing (2).

2: When there is a rusted workpiece, the treatment process is as follows. Pre-oil removal → Oil removal → Hot water washing → cold water washing → pickling → cold water washing → surface conditioning → Phosphating → cold water washing → pure water washing (1)→ pure water washing (2)