Powder blocking gun （Insufficient or irregular powder ejection）

1. Powder accumulation and scaling in the powder delivery tube causes

Solution：

(A) the powder delivery tube will be normal after long-term use of scale, should be regularly cleaned and replaced.
(B) the speed of the powder sprayed out too fast, frictional heat leads to rapid scaling of the wall of the powder delivery tube, at this time should reduce the spray powder air pressure or increase the number of guns.

2. The powder is not completely fluidized in the fluidized bed

Solution：

Poor powder fluidization（Pls reference last blog）

3. High content of superfine powder in the powder

Solution：

(A) Reduce the amount of recycled powder added to the original powder
(B）Check the particle size distribution of the original powder

4. The powder itself has poor dry flow and anti-adhesive properties

Solution：

Notify powder suppliers of improved production formulations

5. Venturi tube wear

Solution：

Replacement of damaged parts