| Bad symtoms |
Possible Cause |
Solution |
|
1.With low power, powder
coating is not easy to coated;
|
1. High voltage power supply shortage; |
1. Check the circuit |
| 2. Grouding is bad; |
2. Remove clutter grouding line |
|
3. Compressed air volume is too big,
the powder to blow fell &blows away;
|
3. Spray appropriate isolation,
reduct air convection;
|
| 4. Powder particle size is too thin; |
4. Add new powder coating, reduce the
recovery powder consumption.
|
| 5.The air temperature is too high; |
5. Powder particles with air water
branch of low power, control
temperature of spray area;
|
|
2. Charge repulsion powder
repboud from the working
surface;
|
1. The voltage is too high; |
1. Lower voltage and air volume; |
|
2. Spray gun from the work location is
too close;
|
2. Extend the spray gun and artifacts; |
| 3. Grouding is bad; |
3. Remove clutter grouding line; |
|
4. Powder particle size is too thin, not
esay to attach to the workpiece surface;
|
4. Add new powder coating, reduce
the recovery powder consumption;
|
|
3. Corner not easy spraying
penetration is bad;
|
1. The powder amount is too small; |
1. Lower voltage and air volume,
increasing the amount of powder;
|
| 2. Grouding is bad; |
2. Adjust the spray gun position; |
| 3. The voltage is too high; |
3. Choose small backboard, proper nozzle; |
| 4. Spray gun position is not good; |
4. If the corner is more and deeper, then
consider friction gun equipment;
|
| 5. Powder spraying range is too wide; |
| 4.Powder spraying uneven |
1. Air pressure is insufficient; |
1. Cleaning pipeline, spray gun and flowmeter; |
| 2. Line fault block; |
2. Check the air supply, Exclude water vapor
in powder agglomeration;
|
| 3. Block in the spray gun; |
3. If powder agglomeration, to screen or
change new powder coating;
|
