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

World's #1 on-line resource since 1989

-----

Cleaning Copper Based Alloys



2001

Can anyone give me a recommendation for replacing tri-chlor when cleaning copper based Alloys?

Dan Walk
- Altoona, Pennsylvania, USA


2001

You should use a degreaser if metal is oily, etc. followed by a rinse. We use approximately 10% (by volume) concentrated sulfuric in water with 0.5% (vol.) 50% hydrogen peroxide based commercial deoxidizer (with stabilizers added). This solution is at a maximum of 30 deg.C., (gets heated only by chemical reaction, and cooling may be necessary). Use an immersion time that just removes oxidation (typically 1 to 5 minutes) but do not etch. Cold rinse, then hot rinse so that metal surface is left over the ambient dew point, but not above 40 deg.C., and finally use a hot air blast to dry off the water, (do this carefully controlled, so you do not retarnish the surface).

Good Luck.

W. Carl Erickson
- Rome, New York

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