Home /
T.O.C.
FAQs
 
Good
Books
Ref.
Libr.
Advertise
Here
Help
Wanted
Current
Q&A's
Search 🔍
the Site
pub Where the world gathers for
plating, anodizing, & finishing Q&As since 1989





-----

Alternative to Nickel Plating for pump seal wear resistance





January 11, 2012

Q. We have a pump shaft that is SS with nickel plating for wear resistance against a pump seal. Does anyone know of an alternate surface treatment or finish that will give it comparable hardness? The shaft manufacturer is having trouble with the plating process.
Thank you.

Gary Kasper
engineer - Grand Rapids



January 12, 2012

A. Hi, Gary.

Nickel plating may or may not be the ideal finish for this application, but changing a finish specification because the supplier doesn't know how to do it properly, is rarely the best approach. Sending some sample parts out to unquestionably competent plating shops might be a better way to go.

It's not clear to me, and may not be clear to you yet, whether this is electrolytic nickel plating or electroless nickel plating. Electroless nickel plating exhibits outstanding corrosion resistance and wear resistance that it will be hard for any other finish to match. Low phosphorous electroless nickel is best for wear. There are more exotic and expensive coatings such as electroless nickel with hard particles, hard chrome plating, and PVD hard coatings . . . but with the limited info we have so far, low phosphorous electroless nickel sounds most promising to me. Plus, I'm not sure that you need the expense of stainless shafts if they will be electroless nickel plated.

Regards,

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey


none
finishing.com is made possible by ...
this text gets replaced with bannerText
spacer gets replaced with bannerImages

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories:

 
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g, Train'g
& Software


About/Contact    -    Privacy Policy    -    ©1995-2023 finishing.com, Pine Beach, New Jersey, USA