Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
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for Metal Finishing since 1989
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Question about reverse plating in Watt's bath
do the pulse reverse plating affect the titanium baskets on a watts nickel bath? for example it does not activate the titanium allowing it to get dissolved in the bath?
Daniel Hernandezplater - Bucaramanga Colombia
March 17, 2010
Hi, Daniel. In applications where reverse polarity is commonplace and efficiency is low, like certain Wood's nickel strike sequences, cast nickel anodes are used rather than anodes baskets. I have not used pulse plating in a Watts' nickel bath, but I am not understanding why the baskets being cathodic would activate them, especially at moderate voltage, reasonable efficiency, and low duty cycle. But, as I say, that's a guess.
Regards,
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
March 18, 2010
Are your baskets actually dissolving? I'd be amazed if they were. If they are, I can't imagine how pulse-reverse rectification could be the culprit.
Jon Barrows, MSF, EHSSC
GOAD Company
Independence, Missouri
March 22, 2010
adv.: Supplier of Copper Anodes, Nickel Anodes, Bismuth Metal, & Other Metal Products for Industry & The Arts
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