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)

-----

"How to anneal silver plated copper & nickel"



October 3, 2017

Q. I was given some silver plated copper and silver plated nickel by a customer. Bending these is impossible. Can these be annealed?

Mary Boyer
Hobbyist - Conway, Arkansas
^


October 25, 2017

A. Mary

If you anneal the silver plated copper, the silver will dissolve/diffuse into the copper and look like it has disappeared. You will have made a silver-copper alloy at the surface.

Nickel anneals between 1300-1700 °F. Time at heat depends on the size of your article. It is often used as a barrier layer between copper and silver to prevent diffusion. We are able to pass silver plated copper alloy wire with a nickel plate between the two at around 1300-1500 °F for about 3-7 seconds and have intact silver plate at the end. Without the nickel, the silver would be 100% diffused into the copper. XRF measurement shows it is still there, but not visible to our eyes. It does not vaporize.

But, a further question: if you anneal your articles, how will you restore them to the original hardness? Maybe it is not important.

jerry_smith
Jerry Smith
Little Falls Alloys, Inc. - Bloomingdale, New Jersey, USA
^

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