How to improve the working efficiency of powder spraying equipment?

How to improve the working efficiency of powder spraying equipment?

1. Resistivity of powder:

The resistivity of powder is ideally between 1010-1016 ohm / cm. If the resistivity of powder spraying line equipment is too low, it is easy to cause powder dispersion. If the resistivity is too high, it will affect the coating thickness of powder spraying line equipment.

2. Powder spraying amount:

The powder spraying amount of the powder spraying line equipment has a certain impact on the film thickness, and the deposition rate is high. The powder spraying amount is generally controlled between 50-1000 g / min.]

3. Velocity gradient:

The velocity gradient is the ratio of the velocity of the powder air mixture at the outlet of the powder spraying line to the spraying distance. Within a certain spraying time, the film thickness will decrease with the increase of the spraying gradient.

4. Spraying distance:

The coating distance is the main parameter to determine the film thickness, which is usually controlled at 10-25cm away from the workpiece, which is mainly determined by the type of spray gun.

5. Spraying time:

The influence of coating voltage on the film thickness limit decreases with the increase of time and coating distance of powder spraying line equipment. With the increase of powder spraying time, the influence of powder spraying amount on the film thickness growth rate decreases significantly.