How to improve the efficiency of powder spraying equipment?

How to improve the efficiency of powder spraying equipment?

1. Powder resistivity:

The ideal resistivity of the powder is between 1010-1016 ohms/centimeter. If the resistivity of the powder spraying line equipment is too low, it can easily cause powder dispersion. If the resistivity is too high, it can affect the coating thickness of the 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 has a high deposition rate. The powder spraying amount is generally controlled between 50-1000 grams per minute.

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 equipment to the spraying distance. Within a certain spraying time, as the spraying gradient increases, the film thickness will decrease.

4. Spray distance:

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

5. Spray time:

As the time of the powder spraying line equipment increases and the coating distance increases, the effect of coating voltage on the film thickness limit decreases. As the powder spraying time increases, the effect of powder spraying amount on the film thickness growth rate significantly decreases.