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

World's #1 finishing resource since 1989
No login needed: Chime right in

topic 59437

Selective Silver Deposition/plating on Copper



October 21, 2013

Q. I'm interested on a process I can implement that can help me to selectively deposit on some areas tin or silver (both at different times) on copper busbars. Something like plasma torch or related, or anything that can help me to avoid plating the entire busbar and just "plate" specific areas of it as a cost effective solution to save silver or tin and process. These are the thicknesses I require as minimum.

Silver Plating: 0.00005 inch = 50 microns
Silver Flash: 0.000003 to 0.000005 inch = 3-5 microns
Tin Plating: 0.0002 inch = 200 microns

Felipe CASTRO
- Monterrey, NL, Mexico


October 23, 2013

A. Hi Felipe. Sometimes the obvious way is the obvious way :-)

Years ago I visited the (then) world's largest user and provider of plated busbar, and their solution was simply to do one wrap of platers tape for a clean demarkation line, then dip just the end into the plating tanks.

Regards,

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


October 25, 2013

Q. Just some additional clarification, we buy complete bars and then we cut them to the required length, it is after this customization that we require the selective plating on areas that vary depending of the product configuration.

Felipe CASTRO [returning]
- Monterrey, N. L., Mexico


July 2014

A. Hi again, Felipe. Broadly speaking there is really only one way to do selective plating -- by exposing only the desired area to plating solution and plating current.

Partial immersion is one approach to that, which I've mentioned already. A second approach is brush plating where only the desired area is touched by the wet, electrified, plating brush/tampon. A third approach is masking with platers tape, vinyl plugs and caps, brush on masking agents, or in special plating machines that temporarily mask the areas where plating isn't wanted via rubber belts, etc. Good luck.

Regards,

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



August 2, 2014 -- this entry appended to this thread by editor in lieu of spawning a duplicative thread

Q. I HAVE A SOME PROBLEM IN SILVER PLATING.
THE PROBLEM IS HOW CAN [I DO] SILVER PLATING OF COPPER ELECTRIC BUTTON ON TOP SIDE, NOT A FULL PLATING, JUST ONLY TOP SIDE.

tanmay soni
- DELHI india


July 2014

A. Hi cousin Tanmay. We appended your question to a thread which may have already answered it for you. If the volume is very very high you can use an automatic machine that temporarily masks one side of the button during the plating process. If the volume is lower, you can either use Brush plating equipment . . .

or you can apply some sort of masking to the back side of the button. Good luck.

Regards,

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

help wanted ad
Junior Quality Engineer [Santa Clara, CA]
Plating Process Engineer [Wenatchee, WA]
Plating Supervisor [Chicago]
Plating Quality Inspector [Chicago]

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