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Ted Mooney, P.E. RET
Pine Beach, NJ

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Solenoid armature

Is Zinc Nickel a plating that will have good wear characteristics when used on an armature (plunger) of a solenoid? The life expectancy is around 1mm cycles, and the bobbin (sleeve) material is nylon 6/6.

Thanks,

Greg Ritchey
solenoid mfgr. - Westmont, Illinois, USA

What metal has traditionally been used?

Tom Pullizzi
Falls Township, Pennsylvania

Zinc-Nickel electroplate is a good finish for your application, However, I think that electroless nickel using a high phosphorus system (10 +% P) would be better in sea water.

Don Baudrand
Consultant - Poulsbo, Washington
(Don is co-author of "Plating on Plastics" [on Amazon or AbeBooks affil links]
and "Plating ABS Plastics" [on Amazon or eBay or AbeBooks affil links])

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