Eco-Zinie 300 alkaline Zinc-nickel alloy process
I. Product Characteristics
Ⅱ.Process Flow: Alkaline chemical degreasing → Washing → Acid degreasing → Cleaning → Activation → Cleaning → Zinc-nickel alloy plating process → Cleaning → Get bright (dilute hydrochloric acid solution pH=3.5~4.0) → Cleaning → Passivation → Cleaning → Sealing → Dry curing
Ⅲ. Process Formula and Operating Conditions |
Product Name | Operating Range |
Optimal (rack plating) |
Optimal (barrel plating) |
Zinc metal(Zn2+) | 5.0~10.0g/L | 7.0g/L | 9.0g/L |
NaOH | 110~135g/L | 120g/L | 130g/L |
Eco-Zinie 300 MU | 4~12ml/L | 8ml/L | 10ml/L |
Eco-Zinie 300 A complex agent | 90~120ml/L | 100ml/L | 110ml/L |
Eco-Zinie 300 B brightener | 0.5~2ml/L | 1ml/L | 1ml/L |
Eco-Zinie 300 C nickel supplement | 12~16ml/L | 13ml/L | 15ml/L |
Temperature(℃) | 23~28℃ | 26±2℃ | 26±2℃ |
Cathode current density(Dk) | 0.5~4A/dm2 | ||
Anode | Nickel plate (or special insoluble anode) | ||
Filtration | Continuous filtration, 1-2 cycles/hour |