The main process parameters that affect the effectiveness of painting equipment?

The main process parameters that affect the effectiveness of painting equipment?

The electrophoresis production line equipment includes electrophoresis tank, spray tank, electrophoresis power supply, electrophoresis recovery ultrafiltration machine, electrophoresis coating equipment, flat light, high light and color. The electrophoresis production line equipment is mainly used for corrosion-resistant coating of automobiles, household appliances and various steel parts in most cases.

The main process parameters affecting coating: Firstly, it is necessary to understand the basic process flow of electrophoretic coating equipment; Then it is necessary to understand what electrophoresis equipment is available for electrophoretic coating. The required equipment includes electrophoresis tank, electrophoresis power supply (also known as "rectifier cabinet"), electrophoresis oven, electrophoresis ultrafiltration machine, water washing tank, etc.

Methods and techniques for electrophoretic coating equipment:

1. The process flow of electrophoretic coating on general metal surfaces is: pre cleaning → online → degreasing → water washing → rust removal → water washing → neutralization → water washing → phosphating → water washing → passivation → electrophoretic coating → tank cleaning → ultrafiltration water washing → drying → offline;

2. The substrate and pre-treatment of the coated material have an impact on the electrophoretic coating film. Castings are generally rust removed by sandblasting or shot blasting, with cotton yarn used to remove floating dust on the surface of the workpiece, and 80 # to 120 # sandpaper used to remove residual steel balls and other debris on the surface. The steel surface is treated with degreasing and rust removal. When the surface requirements are too high, phosphating and passivation surface treatment are carried out;

3. In the filtration system, a first stage filtration is generally used, and the filter is a mesh bag structure with a pore size of 25-75 μ m. Electrophoretic paint is transported by a vertical pump to a filter for filtration;

4. The circulation volume of the coating system in the electrophoresis production line equipment directly affects the stability of the tank solution and the quality of the paint film. Increase the circulation volume, reduce the sedimentation and bubbles of the tank solution; But the aging of the tank solution accelerates, energy consumption increases, and the stability of the tank solution deteriorates;

5. With the extension of production time, the impedance of the anode diaphragm will increase, and the effective working voltage will decrease.