Why does nickel plating usually use double anode bags?
June 14, 2009 Why does Nickel plating use double anode bag? I think my inner bag is make of cotton and outer bag is PP. There is no info that explains the anode bags material choice in my company documents. Can someone help? Sunshine Koh plating engineer – SINGAPORE First of two simultaneous responses — June 18, 2009 Cotton won’t hold up in a nickel solution, especially if sulfuric acid is used to control pH. Both bags should be of a plastic weave material. We used to used double bags to keep anode breakdown contaminants from getting back into the tank, causing roughness. Double bagging may not even be necessary if roughness isn’t a problem… G. Brackett III – Maine Second of two simultaneous responses — June 19, 2009 NICKEL ANODES BAGS, Only reason to use double bags ( inner and outer ) double protection for roughness because during the plating create sludge at bottom of the baskets.if you use only one bag and bag touch with part or racks then tear off , roughness start on parts. P
