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

Chime right in! (no registration req'd)

-----

"AUTOMOTIVE COPPER ELECTRICAL CONTACT CLEANING METHOD REQUIRED"



2005

WE ARE IN THE BUSINESS OF MANUFACTURE OF AUTOMOTIVE PARTS, A FEW OF WHICH ARE MADE OF COPPER. THESE HAVE TO BE SUPPLIED IN BRIGHT CONDITION AS REQUIRED BY OUR CUSTOMERS. MOST OFTEN, OUR COMPONENTS TURN DARK IN COLOUR HOWEVER MUCH WE CLEAN IN ACIDS. PLEASE SUGGEST US A DETAILED PROCEDURE AND CHEMICALS TO BE USED TO ACHEIVE OUR GOAL OF BRIGHT SURFACE FINISH.

C.V.K.PURANIK
TRIPLE-S SPRING TECHNIC PVT.LTD. - BANGALORE, INDIA
^


2005

You may need to send these parts out to a plating shop for bright finishing because it may be more complicated than just an acid dip. But acid doesn't brighten copper, oxidizing agents do. You will need a nitric-acid based bright dip or a proprietary peroxide-sulphuric bright dip. And you'll need D.I. rinsing. Some shops use a final vapor degreaser treatment after or in lieu of D.I. rinsing for a spot-free finish. Unless you can package the parts immediately in a very benign shipping environment, you may need a preservative like benzotriazole.

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

adv.    coatec india banner  saify ind 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