Powder coating processingThe reasons for unevenness may be:
1 The unevenness of powder coating results in uneven coating thickness and uneven surface
2 The curing temperature is too high or too low, which affects the smoothness of the coating
3 The coating is too thin or too thick, resulting in an uneven surface
4 Poor grounding of the workpiece leads to loss of gloss on the coating surface
5 Mixing different powders results in uneven coating surfaces
To avoid unevenness during powder coating processing, the following measures can be taken:
1 Adjust the particle size distribution of powder coating to make it more uniform and improve the smoothness of the coating film
2 Control the curing conditions to ensure that the curing temperature is appropriate and avoid being too high or too low
3 Control the coating thickness within an appropriate range, generally between 60-80 μ m
4 Regularly clean the hanging fixtures to avoid mixing powders of different types or manufacturers, so as not to affect the smoothness of the coating
5 Strengthen pre-treatment, including the quality of the workpiece substrate and purification of compressed air, to improve the flatness of the coating Through the above measures, it is possible to effectively avoid the problem of unevenness in powder coating processing
