Anodens aluminiumplatta är oxiderad, och ett tunt lager av aluminiumoxid bildas på ytan med en tjocklek på 5 till 20 mikron, och den hårdanodiserade filmen kan nå 60 till 200 mikron. Den anodiserade aluminiumplattan förbättrar dess hårdhet och slitstyrka, fram till 250-500 kg/mm2, har mycket bra värmebeständighet, den hårdanodiserade filmen har en smältpunkt på upp till 2320K, utmärkt isolering, and breakdown resistance The voltage is as high as 2000V, which enhances the anti-corrosion performance. It will not corrode for thousands of hours in ω=0.03NaCl salt spray.

There are a lot of micropores in the thin oxide film layer, which can adsorb various lubricants, suitable for the manufacture of engine cylinders or other wear-resistant parts; the film micropores have strong adsorption capacity and can be colored into various beautiful and bright colors. Non-ferrous metals or their alloys (such as aluminum, magnesium and their alloys, etc.) can be anodized.

Anodized aluminum sheets are widely used in mechanical parts, aircraft auto parts, precision instruments and radio equipment, architectural decoration, machine casings, lamps and lighting, consumer electronics, handicrafts, household appliances, interior decoration, signs, furniture, automotive decoration and other industries.