HN-25R Hard Chromium Plating
Commodity Name
HN-25R Hard Chromium Plating
Composition and Working Conditions
Chromium trioxide 180~275g/L
Purity sulfuric acid 2.0~4.0g/L
Make up Solution HN -25K 10~30mL/L
Temperature 50~60℃
Current density of cathode 30~75 A/dm2
Current density of anode 15~35 A/dm2
Supplement of additive: It needs to add 100mL of replenisher HN-25R while adding 1 kg of
chromium trioxide.
Application and Advantage
1. Current efficiency of cathode is high, can reach 22~26%.
2. High micro hardness of deposit, good corrosion resistance.
3. Even, fine-grained and bright deposit.
4. No fluoride, it wont corrode the LCD area of component.