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
-----

Hard anodizing technology

I have heard recently, of a new hard anodizing technology that uses an acidic bath and a high voltage AC current. does anyone know more about this or any companies that are doing this?

Jake Buell
- Klamath Falls, OR
2000

Hard Anodising with High Voltage AC in sulfuric acid is still in lab scale. There are successful examples of superimposition of DC and AC, Pulsating Current and other modulated current being used in Hard Anodising. Only AC anodising in sulfuric acid needs special additive to avoid sulfide formation during anodising.

Best suggestion would be super imposing AC along with DC with proper modulation.

Dr. H.B.Rudresh
- Bangalore, India
2006

(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: