Difference between aluminium anodising and conductive oxidation

Difference between aluminium anodising and conductive oxidation

　　1) Anodising is carried out under high voltage electricity and is a kind of electrochemical reaction; conductive oxidation (also called chemical oxidation) does not require electricity, but only the immersion of the aluminium alloy in the potion, which is a pure chemical reaction.

　　2) Anodic oxidation takes a long time, often several minutes, while conductive oxidation takes only a few tens of seconds.

　　3) Anodising produces a film of several microns to tens of microns, which is hard and wear resistant, whereas conductive oxidation produces a film of only 0.01-0.15 microns. The wear resistance is not very good, but it is both conductive and resistant to atmospheric corrosion, which is its advantage.

　　4) The oxide film is originally non-conductive, but because the film generated by the conductive oxidation of aluminium alloy is very thin, it is conductive.