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

pub
Free personalized metal finishing help!


Problems with adhesion of nickel sulphamate plating



(-----) 2006

I operate a Nickel Sulfamate Electroplating line. Our Etch / Pretreatment has always been 30% H2SO4 with 3% H2O2. This has produced excellent adhesion for years. I now have a new customer with the same chemical composition as all of my other customers that has given me real problems with adhesion. I'd like to try reverse etching. Can this be done with my current etch chemicals? If so, how long? What Amperage? If anyone has any suggestions I would greatly appreciate them.

Coult Giering
Quality Control Chemist - Titusville, Pennsylvania, USA
^


First of three simultaneous responses -- 2006

The customer says that it is the same material, but I will bet one common cup of coffee that it is really a "free cutting" material with a trace of lead in it. If it is, it will take a dip in fluoboric acid solution to get adhesion. On a scrap part, try cathodic at 2-5 ASF.

James Watts
- Navarre, Florida
^


Second of three simultaneous responses -- 2006

May we know what are you plating, how and for what purpose before we can comment?

Guillermo Marrufo
Monterrey, NL, Mexico
^


Third of three simultaneous responses -- 2006

Give details of your process and materials, then someone can tell you what is applicable and then help you.

trevor crichton
Trevor Crichton
R&D practical scientist
Chesham, Bucks, UK
^

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 -or- Start a 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    -    ©1995-2022 finishing.com, Pine Beach, New Jersey, USA