Summary for zinc-nickel plating process Discussion
zinc-nickel plating process guidance in this thread centers on choosing between alkaline and acid systems and using a suitable aluminum pretreatment. Manjunatha Reddy, working in a connector manufacturing company in Bangalore, asked for information on the process and cleaning cycle for aluminum components. In reply, adv. said most major suppliers offer zinc-nickel processes and suggested talking to at least one supplier of each type to get a balanced view of the advantages. For aluminum pretreatment, adv. said the cycle will probably be the same as for zinc plating: non-etch clean, etch, desmut, zincate, strip the zincate, and re-zincate. He added that zincated parts can probably go directly into an alkaline plating process, but may need an alkaline strike before an acid plating process. The answer is practical but cautious, since the exact cycle depends on the supplier’s process.
Q. Sir
This is Manjuntha Reddy from Bangalore working in connector manufacture company as a chemist as well as production supervisor. I need information about zinc-nickel plating process.
Manjunatha Reddy
plating shop employee – Bangalore, Karnataka, India
May 20, 2011
May 22, 2011
A. Hi, Manjunatha.
Most of the major suppliers offer zinc-nickel plating processes, and I’m sure there are several right in Bangalore. Your first decision is whether to use an alkaline or acid based zinc-nickel plating process. You should probably talk to at least one supplier of each so you get a balanced perspective on the advantages of each.
They will also recommend a pretreatment cycle, but it will probably be the same as for zinc plating: non-etch clean, etch, desmut, zincate, strip the zincate, re-zincate. The zincated parts can probably go directly to an alkaline plating process, but probably need an alkaline strike before going to an acid plating process.
Regards,
Ted Mooney, P.E.
Striving to live Aloha
finishing.com – Pine Beach, New Jersey
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