A thicker coating can be obtained by one coating, for example, a coating of 100-300 m; with a common solvent coating, about 4-6 times are required , And the thickness can be achieved in one pass with powder coating. The working process is as follows: the compressed air is passed into the container below the partition, and the compressed air passes through the porous partition to suspend the powder PTFE coated fiberglass tape on the upper part without the effect of air flow, and rolls over in the upper container, showing 'boiling'.

Powder coatings began to be used in protection and electrical aspects. The porous partition divides the container into upper and lower parts. In addition to thermosetting epoxy, polyester, acrylic, there are still a large number of thermoplastic grease resistant powder coatings, such as polyethylene, polypropylene, polystyrene, fluorinated polyether, nylon, polycarbonate and various Fluorine resin, etc.. The preheating temperature of the workpiece can be slightly higher than the melting temperature of the powder. ;status.

The powder coating does not contain solvents and has no pollution from three wastes, which improves labor and hygiene conditions. It has been widely used up to now. Introduction to powder spraying and powder spraying equipment (1) Powder spraying process Powder spraying, also called powder coating, is a new type of coating process that has developed rapidly in recent decades. New technology such as powder electrostatic spraying, high efficiency, suitable for automatic assembly line coating, high powder utilization, and recyclable. Our country has started the experimental research of powder coating since the 1960s and has been applied in production.

The powder coating process has many outstanding advantages: Some countries started research experiments as early as the 1940s, but progress was slow. Surface coating. In 1954, James of Germany successfully coated polyethylene with the fluidized bed method. In 1962, the French company Symes company invented powder electrostatic spraying, and powder coating began to be officially adopted in production.Spraying generally includes: spraying (plastic) powder and painting (paint). With the development of technology, it has been widely used in the automotive industry, electrical insulation, corrosion-resistant chemical pumps, valves, cylinders, pipes, outdoor steel components, steel furniture, castings, etc.

The corrosion resistance of the coating is very good.  In recent years, due to the environmental protection of various countries The importance of protection, powder coatings that do not pollute water and atmosphere, have been developed rapidly. It is composed of a porous partition and a container. Powder coating process .