High-voltage Electrostatic Generator for electrostatic powder spray gun
Recently, our company has researched and developed the High-voltage Electrostatic Generator for spray gun related to powder spraying equipment. The new HV generator for electrostatics precipitator has stable quality and uniform powder, which perfectly meets the needs of a series of electrostatic spraying equipment.
What are the main Electrostatic Powder Coating Machine HV Cascade? Next, we will give you a brief introduction to the composition of the High-voltage Electrostatic Generator for electrostatic powder spray gun.
Electrostatic powder spraying equipment mainly includes: powder spraying room, electrostatic spray gun high-pressure generator, electrostatic spray gun, powder feeder, powder recovery device, workpiece rotation mechanism, etc.
1, classification: spray gun according to its use can be divided into portable powder gun, fixed automatic powder gun, disc spray gun, etc.; It is divided into internal electric gun and external electric gun according to electric type. According to the form of its diffusion mechanism, it can be divided into conflict guns, rebound guns, secondary air inlet guns, centrifugal cup guns and so on.
2, spraying efficiency: the live mechanism form of the powder gun is a key factor to improve spraying efficiency. In general, the core of the powder spraying equipment is the spray gun, HV generator for electrostatics precipitator and the charging system. As far as the market is concerned, the corona spray gun accounts for a large proportion, because the biggest advantage of charging powder by using high-voltage corona discharge is that it can spray all kinds of thermosetting powder coatings today, and can obtain very good results. The advantages of electrostatic spray gun high voltage generator are mainly in excellent stability, powder rate and powder speed.
3, the development of the powder coating gun high voltage cascade is like this: voltage control o current control o total energy control. The total energy control is a component with the distance of the spray gun to the workpiece, and its voltage and current are constantly adjusted to the ideal state to achieve the best painting effect.
1) The powder supply system is to continuously and evenly transport the coated powder from the powder container to the powder gun for spraying.
The powder supply system is composed of air compressor, oil-water separator, air dryer, regulating valve, compressed air pipeline, electromagnetic control valve, powder supply device, powder delivery pipeline, etc.
2) The form of powder feeder
In the powder electrostatic spraying powder supply system, there are many types of powder suppliers used, which can usually be divided into: pressure vessel type, screw or rotary mechanical conveying type, Wenli air suction type.
3) Powder recovery device
Powder recovery can be divided into wet method and dry method. The wet method is to filter the air with the powder through the liquid container to achieve purification, and the powder with the liquid is dried and reused. Dry powder recovery method is to collect powder particles in the powder air flow discharged from the powder chamber. The types of dry powder recovery are gravity sedimentation, inertia separation, cyclone separation, sintering plate separation, etc. In actual production, multi-stage recovery device is often used to achieve better separation effect.
