HN-CY Alkali Bright Copper Plating
Commodity Name
HN-CY Alkali Bright Copper Plating
Composition and Working Conditions
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1.Bath Composition:
Cuprous cyanide
Sodium cyanide
Sodium hydroxide
Nochel HN-CY2
Brightener HN-CY3
Brightener HN-CY4
2.Working Conditions:
Copper content
Free sodium cyanide
Sodium hydroxide
Temperature
Current density
Anode
Filtration
Agitation
3.Consumption:
BrightenerHN-CY3
BrightenerHN-CY4
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50-65g/L
80-90g/L
1-3 g/L
30-40mL/L
7mL/L
5ML/L
35-46 g/L
15-23 g/L
1-3 g/L
55~65 ℃
2~6 A/dm2
Anaerobic electrolytic copper
Continuous filtration
Swept cathode
80~100mL/1000A.H
250~300mL/1000A.H
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Application and Advantage
1. Fine grained plating layer; seldom bring holes.
2. The plating layer is bright and glossy and has good covering power.
3. The bath solution is stable and is easily maintained, and has good tolerance to the impurity.
4. It is used for plating on steel, copper and copper alloy, especially zinc alloy.
5. Using potassium cyanide and sodium cyanide for make-up can reach the same effect.