Properties
1. Wide technique range and good covering ability. The throwing power can increase by 30~60%, the current efficiency is up to 22~24%, non-corrosion at the low current area.
2, High tolerance to impurities.
3. Low content of chromic acid, it is 40% of conventional plating solution. Can reduce the content of chromic acid in waste water, easy to handle.
4. The technique is stable, easy to maintain.
Technical Formulation and Operating Condition
Chromic acid (CrO3) | 150~250g/L |
Sulfuric acid (H2SO4) | 0.75~1.88g/L |
CHROME 31 | 5~9ml/L |
Cr3+ | 0.5-3g/L |
Temperature | 18~50℃ |
DK | 15~20 A/dm2 |
Anode | Lead-Tin alloy plate (Tin content is 8~15%) |
Gravity | 19~23°Be |