Sandblasting powder recycling and reuse

The powder adhered to the profile surface by the sandblasting machine accounts for about 1/3 of the total powder output from all the spray guns. More powder is scattered throughout the spray room. To achieve better results, the recovered powder must be mixed with newly added powder in an appropriate ratio. Therefore, it is essential to recover and reuse the powder promptly.

1. Enclosure within the spray room

Powder is susceptible to contamination from external airborne particles. After application, the surface of the profile is prone to the formation of fluffy material or shrinkage holes, which can affect the flatness of the profile after baking. Therefore, the spray room should implement enclosed measures to prevent the intrusion of pollutants.

2. It is essential to promptly clean and remove any residual powder in the air tube. Left unused for extended periods, the powder can clump together, leading to the phenomenon of spewing powder, which adversely affects the spraying outcome.

3. Spare Powder Drum

The sandblasting machine is ready for powder replacement, effectively enhancing labor efficiency. Proper maintenance, including dust and moisture prevention, must be carried out on the spare powder bucket to ensure the quality of the remaining powder inside.

In addition, the process of replenishing powder should also be given due attention.

Although all technical parameters have been fine-tuned before production starts, continuous monitoring of the workpieces is required through the powder compensation window to ensure non-stop supervision. Promptly apply additional powder to areas with shallow powder coverage and where powder has not been absorbed. Due to the higher powder output of the manual abrading gun compared to the automatic gun, the swinging speed of the manual abrading gun can be slightly increased.