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!


Having problems with brittle nickel sulfamate deposits



(-----) 2004

Q. Hello,

I am from Brazil and here the electroform is not used, I have a bath of nickel sulfamate and I am having problems. The deposited nickel is brittle. Does anybody can me to help? You excuse me my English it is bad.

ALVARO PINHEIRO
electronics - SÃO PAULO, BRAZIL
^


2004

A. Without knowing what you are doing, your problem cannot be solved. Brittleness in an electroform can be due to almost anything, ranging from bath contamination through to the wrong (or out of specification) solution, wrong current density, wrong pH, wrong anodes and wrong temperature. You must provide details of what you are doing before anyone can help you.

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


2004

Q. I am forming cavities of mold termoplastic -temp. 50Cª -pH4,0 -current 6amp/dm2 the deposition is on top of silver ink.

ALVARO [returning]
- Brazil
^


2004

Bath composition?

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


2004

My bath has 500g/l of nickel, 35 g/l boric acid, 2 ml/l of mechanical washer, 1 ml/l of leveling

ALVARO
altera - Brazil
^

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