Cyanide Bright Zinc Process , Zinc electroplating , Cyanide zinc plating JZ-2
Properties
• liquid brightener
• produces brilliant deposits at low, medium, and high current densities
• for both barrel and rack operations
• excellent throwing and covering power
• plated parts can easily be chromated
• due to the variable metal and cyanide content of the solution, it may be usedover a wide range of operating conditions
• contains no aldehydes - a fact which allows the plater to use operating temperatureshigher than normal (up to 45 °C)
• its brilliant deposits and its economic use make it the outstanding cyanide zincbrightener system
Composition | Trace cyanide | Less cyanide | More cyanide |
ZnO | 8~15g/L | 10~25g/L | 20~35g/L |
NaCN | 5~10g/L | 10~25g/L | 20~70g/L |
NaOH | 95~110g/L | 70~80g/L | 40~90g/L |
JZ-2 | 2~5ml/L | 2~5ml/L | 2~5ml/L |
Control range Zn2+ g/L NaCN g/L NaOH g/L |
7.5-15 4.5-11 90-110 |
10-20 10-25 70-90 |
20-40 25-70 35-80 |
Operating conditions temperature Dk Cathode current efficiency Sa:Sk(面积) Anode |
5-41℃ 0.5-6A/dm2 65-85% 1.5:1-2:1 99.99% Zinc plate |