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

I'M STUDENT OF MS IN METALLURGY IN TEHRAN UNIVERSITY . I HAVE A PROBLEM ABOUT MY THESIS AND I NEED YOUR HELP. THE PROBLEM IS ABOUT HARD ANODIZING AT ROOM TEMPERATURE AND ALSO THE TEMP. SHOULDN'T INCREASE THAN 40 °C. PLEASE HELP ME FOR CHEMICAL COMPOSITION OF BATHS THAT CAN PROVIDE THIS AIM. THANKS ALOT MHG.

M.H.GOOD
- TEHRAN, IRAN
2003

Hello, Mr. Good. Those baths actually do nothing towards absorbing the heat which the rectifier electricity creates in the bath. All they do is allow you to do quasi hard anodizing at about 10 °C instead of having to maintain 0 °C. I think such additives are generally based on such chemicals as glycolic and oxalic acids, but are generally proprietary. Therefore, if anyone can reference a published article for you, that would be fine, but otherwise you would have to independently search the literature. Good luck.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2003

(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: