An airless spraying machine is one that is sprayed through a pressure pump and then onto a special olive nozzle hole. This high pressure paint from the nozzle to the elbow of the person, and very fine paint fog immediately spit into the workpiece surface, also known as high pressure airless spray machine. The application of airless spraying machine, the development of airless spraying technology and equipment, expand the airless spraying application field. Widely used in ships, vehicles, steel structures, Bridges, petroleum, petrochemical, construction, machinery and other industries. It is one of the most widely used coating methods.
Airless spraying machine is generally composed of power source, high pressure pump, pressure storage filter, high pressure hose, paint container, spray gun and other parts.
Airless spraying machine can be divided into hot spraying, cold spraying, electrostatic spraying, air subsidy and other types. The initial airless spray is the use of gear pump coating pressure, but the pressure is not high, at room temperature coating atomization effect is not good. To make up for this kind of defect, the method that USES coating to heat beforehand, press again next spurt, this kind of method is called heat spurt type does not have air to spray. Due to the large size of the equipment, the use is limited, not universal adoption. Later USES the plunger pump to the coating pressure, the coating pressure is high, the atomization effect is good, the coating does not need to heat, the operation is relatively simple, this method is called the cold spray type does not have the air spraying machine. High spraying efficiency, less spray paint fog, can get a thicker coating film, suitable for large area of the workpiece spraying, so it is widely used.
Electrostatic airless spraying machine is the combination of airless spraying and electrostatic spraying, giving full play to the characteristics and advantages of both, and improving the coating efficiency.
Two-component airless spraying machine is a new method developed to adapt to the spraying of two-component coatings.
Airless spraying machine has the following advantages:
(1) high coating efficiency;
(2) good film quality;
(3) greatly reduce the pollution to the environment;
(4) wide adaptability to coating viscosity;
