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Nickel strike, Sulfamate and Protocol

I want to know if there is someone that can help me with a recommendation of the concentration and composition for the Nickel Strike and Nickel Sulfamate for steel alloys. And I would like to now also if there is a protocol for the start up or validation of plating lines.

Thank you very much in advance for your attention to this message.

Jorge Alberto Rodriguez
Leach - California, USA
2005

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Strikes for alloy steels are either the sulfamate or the Wood's all chloride. The later is more popular, dependable and easier to make up and control. It consists of 250g/L nickel chloride, 250 g/L hydrochloric acid, room temp, pure nickel or sulfur depolarized anodes, current from 20-100 A/sq-ft. Sulfamate plating bath has 250-450 g/L Ni sulfamate, 0-30 g/L Ni chloride, 30-45 g/L boric acid, pH 3-5, temp 100-140 °F, 25-250 a/sq-ft (anti-pit is optional). Protocols very much depend on the spec you are to follow. May I suggest you get a good plating book instead of relying on an internet search.

Guillermo Marrufo
Monterrey, NL, Mexico
2005

adv.