Spraying is a coating method that is dispersed into uniform and fine droplets by means of pressure or centrifugal force through a spray gun or disc atomizer and applied to the surface of the object to be coated.
It can be divided into air spraying, airless spraying, electrostatic spraying and various derivatives of the above-mentioned basic spraying forms, such as high-flow and low-pressure atomizing spraying, thermal spraying, automatic spraying, multi-group spraying, etc.
At present, there are four main types: arc spraying, flame spraying, plasma spraying and explosive spraying. Using spraying technology, coatings with wear resistance, corrosion resistance, heat insulation, electrical conductivity, insulation, sealing, lubrication and other special mechanical physical and chemical properties can be obtained on various substrates. The application range is very wide, involving all sectors of the national economy and various fields including cutting-edge technology.
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