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Can Anyone tell me how to do the Alumi Hard Anodic (Type III) Sulfuric acid process

Try so many formula, but just can't success, Please some one just help me out., my professor request is about 50um. and color should be black.

Nick Lin
City College - New York, New York
2005

You've tried so many formulas, but you haven't named even one, Nick, nor said what happened. That means the odds are almost overwhelming that whatever formula a reader names, your response will be that you have already tried it and it didn't work--which will not help you, but will insult them, and waste everyone's time :-)

It is simply impossible to distill a whole technical book into a paragraph or two, Nick. Either get a book on the subject or tell us what you tried (temperature, current density, solution composition, anodizing time, etc.) and we can attempt to help you troubleshoot. Good luck with it!

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Need quick confidential answers? $25
Need project assistance? $100/hr.
2005

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