Forbrite CC-34 is an alkaline cyanide copper plating process. It produces a very bright and leveling deposit and
can be operated under high current density. The
deposit produced has excellent corrosion resistance.
Ⅰ.
Advantages:
1. Full bright deposit is attainable under wide current density range.
2. Can be operated under high current density.
3. High tolerance to impurities.
4. Easy to maintenance.
Ⅱ.
Bath
compositions and operating conditions :
Copper cyanide |
:
75 g/l |
Potassium cyanide |
:
127g/l |
Potassium hydroxide |
:
30 g/l |
Rochelle Salt |
:
35 g/l |
Forbrite CC-34 |
:
7.5-8.5 ml/l |
Forbrite CC-35 |
:
5.0-6.0 ml/l |
Copper metal |
:
40-60 g/l |
Free potassium hydroxide |
:
15-23 g/l |
Temperature |
:
65-80℃ |
Agitation |
: Mechanical or air agitation |
Current density |
:
2-5 A/dm2 |
Anode |
: OFHC
electolytic copper |
Anode bag |
:
Required |
Filteration |
:
Continuous filteration |
Ⅲ.
Maintenance
:
CC-34
|
: 125-200ml/1000
A.H. |
CC-35 |
: 250-
50 ml/1000 A.H. |