Forbrite CC-34 alkaline cyanide copper plating process

 

 

          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.

. 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.

. 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

   . Maintenance :

        CC-34            

:      125-200ml/1000 A.H.

        CC-35

:      250- 50 ml/1000 A.H.