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)

-----

"Plating the ID of a mm ID stainless steel"



January 29, 2019

Q. We have a medical grade application using a stainless steel tube with ID =1.1mm and length =11.4mm where we pass IR laser light through it. Is it possible to coat the inside of the tube with either silver or gold? If so, how do we go about doing this (We don't have the means to do this in-house)? Thanks in advance.

Roni Cantor-Balan
R&D Engineer - NEEDHAM, Massachusetts, USA
^

  ^- Privately respond to this RFQ -^


January 2019

A. Hi Roni. Although all things are supposedly possible, it doesn't seem very practical to me considering the many things you are fighting: tiny diameter nearly impossible to electroplate ... stainless steel very difficult to activate for plating or electroless plating ... hard to know whether the gold plating completely covered the ID or missed some spots ...

Have you considered the possibility of reversing the sequence, i.e., starting with a 1 mm wax or other meltable mandrel, then gold electroplating it for your IR needs, and then nickel or nickel-cobalt electroforming the structural tube on top of the gold instead of making it from stainless steel and trying to gold plate the inside?

Regards,

pic of Ted Mooney
Ted Mooney, P.E. RET
Aloha -- an idea worth spreading
finishing.com - Pine Beach, New Jersey
^


January 29, 2019

Q. Hi Ted, I have just learned of the option you are suggesting and it seems to be quite an expensive one for our application. I also just learned that if the length of the tube is more than twice its diameter then electroplating is nearly impossible. I would be happy though to receive quotes from vendors who have the capability to perform electroforming of this size.

Roni Cantor-Balan [returning]
- NEEDHAM, Massachusetts, USA
^

  ^- Privately respond to this RFQ -^


January 29, 2019

A. It might be simpler to use gold or silver tube provided all other requirements(?) are met.

H.R. Prabhakara - Consultant
bangaloreplasmatek.com - Bangalore Karnataka India
^

adv.   nicoform banner

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