Working Principle And Precautions Of Wall Spraying Machine

The main working part of the spraying machine is a double-acting pneumatic hydraulic booster pump, and the reversing mechanism is a special-type pilot-operated full air-controlled gas distribution reversing device. After entering the compressed air, when the piston moves to the upper end or the lower end of the cylinder, the upper pilot valve or the lower pilot valve is actuated, and the control airflow instantaneously pushes the valve reversing device to reverse, so that the piston of the air motor performs stable and continuous reciprocating motion. Since the piston is rigidly connected to the plunger in the paint plunger pump, and the area of the piston is larger than the area of the plunger. The pressurized paint is thus pressurized. The pressurized paint is conveyed to the airless spray gun through a high-pressure hose, and finally the hydraulic pressure is released at the airless nozzle, and is instantaneously atomized and sprayed onto the surface of the object to be coated to form a coating layer.

A. The paint film has good quality, the coating is smooth and fine, and there is no brush marks. It sprays the paint into a fine particle to make it evenly distributed on the surface of the wall, so that the latex paint forms a smooth, smooth and dense coating on the wall surface, without brush marks and rolling marks. This is brush and roll. The original method is unmatched.

B. High coating efficiency. The single-action operation has a spraying efficiency of 200-500 square meters per hour, which is 10-15 times that of manual brushing.

C, good adhesion, long coating life. It uses high-pressure jet to make the atomized paint particles obtain powerful kinetic energy; the paint particles can absorb the kinetic energy into the pores to make the paint film denser, thereby enhancing the mechanical bite force between the paint film and the wall surface and improving the adhesion of the paint. , effectively extend the life of the coating.

D, the thickness of the paint film is uniform, and the utilization rate of the paint is high. The thickness of the artificial brush roller is extremely uneven, generally 30-250 micrometers, and the coating utilization rate is low; and the coating of thickness 30 micrometers is easily obtained by airless spraying.