Electricity spraying: Using a high -voltage electrostatic field to make negative coating particles with negative electrical electrostatic movement in the opposite direction of the electric field, and adsorb the spraying method of the coating particles on the surface of the workpiece. The electrostatic spraying equipment consists of spray guns, spray cups, and electrostatic spraying high -voltage power.
Advantage:
1. Painting can get thicker coating at one time, such as coating of 100 to 300 μm. Use ordinary common solvent coatings to apply about 4 to 6 times, and the thickness of the thickness can be achieved at once with powder coatings at a time. Essence The corrosion resistance of the coating is very good.
2. Powder coatings do not contain solvents, and have no public harm, which improves labor and hygiene conditions.
3. New processes such as powder static spray coating are highly efficient. It is suitable for automatic assembly line painting. The powder utilization rate is high and can be recycled.
4. In addition to thermosettic epoxy, polyester, and acrylic acid, there are still a large amount of thermoplastic grease resistance as powder coatings, such as polyethylene, polyetryne, polystyrene, fluoride polyether, nylon, polycarbonate, and various types Fluorine -containing resin.
Powder coatings began to be used for protection and electrical margins. With the development of technology, it has been widely used in the automotive industry, electrical insulation, corrosion -resistant chemical pumps, valves, cylinders, pipelines, steel components outside the house, steel furniture, casting, etc. Paint. In the 1960s, my country's experimental research on powder painting has been applied and applied in production. Development has been widely used. In recent years, it has been widely used in aluminum alloy fishing vessels and aluminum alloy official ships.
