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topic 0792

Stripping of Nickel Plating from Neodymium magnets


A discussion started in 1998 but continuing through 2018

1998

Q. We have been asked to strip and replate some electromagnets manufactured from Neodymium (NdFe). These magnets were electroless nickel plated by another firm and are now peeling. Our concern is whether or not this material (NdFe) might be damaged during the stripping process. What stripping solution might be employed?

Alan Cooper
- Dallas, Texas


1997

A. I have stripped rare earth magnets in a two part electroless Ni strip , without any ill effects. Just make sure it's in a non-magnetic tank . The strip was at 60 c and is immersion type from a local supply house (possibly Udylite on your side ) .

Dave Brackenridge
aerospace plating - Germiston, South Africa


(1999)

A. Please also see our FAQs on Stripping of Electroless Nickel, Alan, which may be of some help. Good luck.

Regards,

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



December 7, 2017 -- this entry appended to this thread by editor in lieu of spawning a duplicative thread

Q. I am Trying to remove Ni plating from NdFeB magnets. please suggest some process for 1 kg material. It's for my Master's program.

Janaki Ram
- Visakhapatnam india



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