August 17, 2023
|
Symptoms |
Possible cause |
Corrective method |
|
Rough coating, dark melting |
Current density too high PH too high Insufficient buffer Insufficient brightener |
Reduce current density Lower the PH Add buffer by analysis Increase brightener |
|
Slow deposition rate |
Low in zinc Low PH Insufficient conductive salt Low current density |
Add zinc anode Raise the PH Add conductive salt Increase current density |
|
Plating has gray spots, low battery |
Low current density Insufficient brightener PH too high Too many metal impurities |
Increase current density Add brightener Lower the PH Treatment with zinc powder or low current density electrolysis |
|
Plating easy to burn, current |
Low zinc concentration PH too high Less conductive salt Insufficient brightener |
Analysis supplement Lower the PH Analysis supplement Add brightener |
|
After drying, the surface of the part has " |
Dirty to clean after plating |
Enhanced post-plating cleaning |
