Home /
T.O.C.
FAQs
 
Good
Books
Ref.
Libr.
Advertise
Here
Help
Wanted
Current
Q&A's
Search 🔍
the Site

Problem? Solution? Chime right in!
(perhaps the world's last 'no registration' site)

-----

"Surface finish, pre-plating and post-plating operations for hydraulic cylinder rods"



2005

What pre-plating, plating and post-plating techniques are required to get a proper surface finish of a hard chrome plated rod for the best sealing properties. This is a zero pressure application. I need to keep oil inside of a housing with a recipricating rod extention. I am using hard chrome for corrosion resistance.

John Keesee
- Radford, Virginia
^


2005

For hydraulic cylinders which operate frequently and at high pressure, a typical process might be grind to 16 ra or better, hard chrome several thousandths thick, then grind or polish to 16 ra or better. Some polish to a mirror finish, but I'm not sure this is either necessary or desirable. If your need is for low pressure and low cycle frequency, you may be able to use relatively thin chrome (<.0005") and eliminate the second grind/polish step. Typical seals for cylinders are designed to work pressurized, so talk to a seal mfr and be sure you get seals appropriate for your application.

jeffrey holmes
Jeffrey Holmes, CEF
Spartanburg, South Carolina
^

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 SEARCH for Threads about ... My Topic Not Found: Start 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    -    ©1995-2021 finishing.com, Pine Beach, New Jersey, USA