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topic 742

Anodes for Nickel Sulfamate electroforming


(1998)

I'm electroforming nickel from a sulfamate bath, and I understand that a sulfur-bearing anode is needed if no chloride is used in the bath. How much sulfur is enough for this purpose? Also, can anyone suggest a supplier that sells this type of anode? I'm looking for a small amount; the bath is only 2 liters.

Thanks,

Jim Rogers
microsystems engineering - LSU - Baton Rouge, Louisiana


This anode material is a standard product, Jim. Inco calls them "S-rounds"; I'm not sure what Falconbridge or others call them, but just ask for sulfurized nickel anodes. Sources include Tally Metal Products.

Ted Mooney, finishing.com Teds signature
Ted Mooney, P.E. RET
finishing.com
Pine Beach, New Jersey


(1997)

Anodes for 2 liters - I am not sure that INCO or any other big supplier of nickel will agree to sell you less then 50 KG. Try to buy nickel anodes for Hull cell or for Jiggle cell. Sara

sara michaeli
sara michaeli signature 
Sara Michaeli
chemical process supplier
Tel-Aviv, Israel



sidebar (1998)

I give up, Sara -- what's a Jiggle cell?

Ted Mooney, finishing.com
Teds signature
Ted Mooney, P.E. RET
finishing.com
Pine Beach, New Jersey


(1998)

Jiggle cell is a one litre cell used with bent cathode. Gives you a better way to evaluate problems in plating solutions, like roughness,covering power etc. It has a few benefits over the regular Hull Cell. Sara

Sara Michaeli
Sara Michaeli signature 
Sara Michaeli
chemical process supplier
Tel-Aviv, Israel


(1998)

There are many types of nickel anode material available.With reference to running in a chloride free bath (the main reason for this might be to lower the nickel deposits internal stress) The addition of sulfur and carbon to the anode material allow for higher plating rates, however they are not required for plating to take place up to approx. 20 ASF. So if you are starting out you can use what is available to you, but I do suggest the use of anode bags and titanium hooks, baskets or bolts should be used for electrical contact.

Anthony J. Covey
electroformer - Corona, California



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