Cause | Remedies | |
---|---|---|
Workpieces grounded insufficiently. | Clean the hangers and hooks. | |
Powder resistance too low. | Contact your powder manufacturer. | |
Poor grain size distribution. | Contact your powder manufacturer. | |
Field strength too high. | Change the current, and gun to object distance. | |
Powder is blown out of the corners and cavities by too much air pressure. | Reduce the Total air pressure. | |
Too little penetration in the corners and cavities caused by too high current or using of the wrong nozzles. | Reduce the current and use more suitable nozzles. | |
Poor pre-treatment. | Contact the supplier. | |
Wrong oven settings (too high, too low, curing time too long) | Improve the oven settings. | |
Unsatisfactory powder quality. | Contact the Powder supplier. Change the powder. | |
A too rapid stroke movement can break up he powder cloud. | The stroke speed should not exceed 0.6 m/s - values between 0.2 - 0.4 m/s are recommended. |