No registration or passwords; no pop-up ads -- just aloha, fun, & answers.
(as an eBay Partner & Amazon Affiliate earns from qualifying purchases).
Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Advertise
 
Help
Wanted
Current
Q&A's
Site 🔍
Search
pub  Where the
world gathers for metal finishing
Q&As since 1989



-----

Continuing hard chrome plating after a power interruption




What are the steps to follow in order to continue my hard chrome electroplating process after an interruption of two hour or more?
More importantly, how do I prepare the item and in what chemicals?

Theresa Adefisayo
Hard Chrome electroplating - Ifako-Ijaye, Lagos, Nigeria
May 20, 2009



May 22, 2009

Try reverse etch for about 1 min at 4,5 Volts. Then slowly rise the current for chrome plating (0,5 volts every 5 min).

The same if you have taken the part out of the bath but first leave it enough time inside the bath so as it gets bath temperature before etching.

Alternatively, you can first warm it a little with hot water, brush it with a 50:50 HCl acid solution, rinse thoroughly with warm water, put it in the bath and again rise current slowly.

Hope that helps.

Chris Sigalas
- Athens ,Greece




(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

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  -  ©1995-2024 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"