How do I calculate the voltage and the time required for 20 micron oxide in al profile 100x80 with wall thickness of 3mm. length profile is 10 m?

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Ghassan Al-kindi

Dear Nikola:

The usual practice is to use current density control, not voltage control. The general formula to calculate time is as follow:

Minutes to anodize = microns (of coating required) × 3.12 divided by amps/sq dm

Nikola Jugov

Dear Ghassan, thank you for answer!

Do you know where I can find a few example of calcutaion for anodizing aluminium in industry way?

tnx again

The best reference is ASM Handbook Volume 5, Surface Engineering.

ASM= American Society for Metals.

Best regards.