No passwords, No popups, No cost, No AI:
we earn from 'affiliate link' purchases, making the site possible

Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Adver-
tise
Help
Wanted
Current
Q&A's
Site 🔍
Search
ted_yosem
Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
finishing.com -- The Home Page of the Finishing Industry

  The authoritative public forum
  for Metal Finishing since 1989
  mfhotline


 

-----

Will Inductive Anode Destroy the Plating Additives?


Q. Hi,
e What can happen if you use an inductive anode in a sulfuric copper, sulfuric zinc or a nickel solution? I believe the inductive current will destroy the additives. But I'm not sure.

Regards,

Anders

Anders Sundman
Anders Sundman
4th Generation Surface Engineering
Consultant - Arvika,
Sweden

April 28, 2015



April 2015

? Hi Anders. Unfortunately I am not familiar with the term "inductive anode". Is this what I might call a "bipolar anode" -- a piece of metal that runs from close to the anodes to close to the cathodes, but is not connected to either?

Regards,

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



Q. Hi,

Also membrane anode is the right term for it.
The membrane anodes have a net out side of it, and it's not connected to a current. But I belieive the inductive current will destroy the additive in the solution. I hope some people have more experience with it than me.

Best regards,

Anders Sundman
Anders Sundman
4th Generation Surface Engineering
Consultant - Arvika,
Sweden

May 4, 2015


May 6, 2015

A. It will definitely destroy some nickel brighteners, but I'm not sure it has the same effect on copper and zinc plating baths.

Zinc is often plated in an alkaline bath with insoluble steel anodes with no apparent problems, and copper is electroformed with insoluble anodes, also without any apparent problems.

Lyle Kirman
consultant - Cleveland Heights, Ohio


August 17, 2015

A. If we are talking about membrane anodes (instead of inductive anodes) it is worth remembering two essential points.
First, the mesh/net inside of the membrane anode is usually made of plastics.
Second, the mesh/net material is absolutely neutral for the galvanic bath because it is just separated from the bath by the membrane and immersed in pure anolyte.

From the assumption, organic additives cannot penetrate the membrane.

JANUSZ LABEDZ
AUROTECH - Warsaw, Poland




(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:

Finishing
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g,
& Software


About/Contact  -  Privacy Policy  -  ©1995-2024 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"