Brightener for Sulfate Zinc Plating ; Good combination between plating deposit and steel wire, low brittleness ; SZ-75
1. Properties
The performance is up to the international advanced standard of the same kind of additive.
1. Good combination between plating deposit and steel wire, low brittleness, zinc loss lower to 2~8% during drawing.
2. The deposit thickness is up to 50~200g/m2, suitable for continuous zinc plating on general steel, mid and high-carbon steel wire, also for wire drawing and deeply processing of the plating deposit.
3. The bath allows wide range of temperature, it has good salt resistance, no foam, stable bath is easy to operate and maintain.
2. Bath Composition and Operating Condition
| Zinc Sulfate (ZnSO4·7H2O) | 600~700g/L |
| SZ-75 Bath make-up | 25~30ml/L |
| SZ-75 Additive | 16~18ml/L |
| PH | 2.5~3.5 |
|
Temp. |
10-60℃ |
| DK | 40~70A/dm2 |
| Cathode current efficiency | >95% |
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