METHOD FOR ELECTROPLATING GOLD

摘要

In an improved gold plating process the alkali metal concentration in the bath is maintained substantially constant during the plating operation by contacting the plating bath with an ammoniated cation exchange resin to replace alkali metal ions with ammonium ions and operating the ion exchanged plating bath at 60 DEG -90 DEG C. This process is particularly applicable when heavy coatings are desired, for example, in electroforming processes.