Electrostatic Spraying Equipment

Electrostatic Spraying Equipment
Electrostatic spraying has been widely used since its development in the 1950s. It can be combined with the above three basic spraying methods to synthesize their advantages into a new spraying method. When DC high voltage is applied between the grounded workpiece and the spray gun, an electrostatic field will be generated. When charged coating particles are sprayed onto the workpiece, they will be evenly deposited on the surface of the workpiece after colliding with each other. The coating particles scattered near the workpiece are still within the scope of the electrostatic field, and it will be surrounded around the workpiece, thus spraying on all surfaces of the workpiece.
Therefore, it is particularly suitable for spraying fences, pipes, small steel structures, steel pipe products, diesel engines and other workpieces with complex geometry and small surface area. It can easily and quickly spray paint to every part of the workpiece, which can reduce overspray and save paint. The coating transfer efficiency is as high as 60-85%, and its atomization condition is very good, and the coating film thickness is uniform, which is conducive to the improvement of product quality. On wooden furniture, the electrostatic spray gun can also achieve good electrostatic embracing effect, especially suitable for chairs, tea tables, wood products and other workpieces.
However, electrostatic spraying has certain requirements on the viscosity and conductivity of coatings. Not all coatings are applicable to electrostatic spraying, and the investment in equipment is also large. The powerless electrostatic spray gun, which provides the best atomization effect, removes the high-voltage electrostatic generator and connecting cable, and generates electrostatic high voltage from the air-powered small turbine generator assembly installed inside the gun body, which is very safe and convenient. The air electrostatic spray gun can provide the most perfect surface quality. The air-assisted airless electrostatic spray gun is widely used in aircraft, engineering machinery, power machinery and other industries with high quality, high efficiency and high productivity. The electrostatic spray gun not only has good surface quality, but also has great economic benefits. Although the investment is large at one time, it saves 40% of the coating and more than twice the working time, so it can recover all the investment in a short period of time.

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