Neutral nickel plating process in zinc layer
★Use and characteristics
1. The scope of this process is wide and the corrosion resistance is strong. Barrel or rack plating is ok, the coating is white and bright. It also can save additive dosage.
2. The coating is full. The low potential is as good as the high potential light. Easy to control, the plating solution has good resistance to impurity, the liquid is clear, the solution is stable, the treatment period is long, and the coating is not easy to spot
★Solution composition and operating conditions
1.Operation condition:(as the rack plating for example)
Nickel sulfate 100-150 g/L, sodium citrate90-125 g/L and sodium chloride80-120,202makeup agent30-35mL/L,202brightener 8-10mL/L, 202assisant agent 5-10 mL/L, boric acid 25-30 g/, pH 6.3-6.8,temperature 25-45 current density (Dk=0.5A/d T=20 M C)
2.1000AHconsumption addition:
Brightener100-200mL/KAH, assistant agent 100-200mL/KAH, makeup agent 50-100mL/KAH.
3.Product catalog:Makeup agent, assistant agent, brightener