Main issues |
Causes |
Solution |
Bad electrification
uneven film
bad covering |
The voltage of spraying gun is not enough |
Check the high-voltage generator |
| Change the broken electrode component |
| Clear liquated powder |
| Bad earthing Bad earthing |
Powder Check the clearing pendant powder |
| Powder amount is too enoough， the electricity of powder is not well |
Reduce the amount of powder |
| Wet air |
Control the areal air humidity |
| Quite small powder grain |
Control the reclaiming rate |
| Too much air |
Decline the air flow |
| Type issues |
Change the prescription |
Bad passing, Faraday effect
|
Few powder |
Increase powder supplying air flow volume |
| Bad earthing |
Check the earth |
| Dispersing spraying powder |
Adjust the spraying |
| Too speedy powder supplying |
Reduce air flow |
| Misplacement of oil |
Adjust the place of gun |
| Too slow powder supplying speed |
Adjust powder supplying amount |
| Too high voltage |
Reduce voltage |
| Back ionization，powder casting |
Too high voltage of spraying gun |
Adjust voltage |
| Too close distance between guns |
Make the guns' distance farther |
| Bad earthing |
Check earth |
| Too thick spraying |
Make guns' distance farther |
| Respraying, the first coating is for insulating |
1, Reduce voltage |
| 2, Warm-up part |
| Spraying fluctuation，discontinuous |
Too low air pressure or tolerance, air pressure fluctuation |
Check air pressure |
| Too long powder supplying tube |
Powder supplying tube should be short and straightforward |
| Jam of powder pump or powder tube |
1,Check agglomeration |
| 2,Check the powder supplying system |
| 3,Contact powder supplier |
| Inadequate powder supplying speed |
Check the powder supplying amount |
| Bad fluidization |
Refer to powder supplying issues |
| Too few powders in case |
Add powder |
| Irregulor charge |
Dry air, uneven powder supplying, |
Control the air humidity between 40~70% |
| Bad earthing of reclaiming system |
Check all the earth of equipment |
| Uneven shape powder |
Abrasive gun part |
Replace powder tube or pump, etc. |
| Jam of powder |
Clearing periodically |
| Too low airpressure of powder supplying |
Adjust air pressure |
