Anodens aluminiumplade er oxideret, og der dannes et tyndt lag aluminiumoxid på overfladen med en tykkelse på 5 til 20 mikron, og den hårdanodiserede film kan nå 60 til 200 mikron. Den anodiserede aluminiumsplade forbedrer dens hårdhed og slidstyrke, op til 250-500 kg/mm2, har meget god varmebestandighed, den hårdanodiserede film har et smeltepunkt på op til 2320K, fremragende 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 (såsom aluminium, magnesium and their alloys, osv.) can be anodized.

Anodized aluminum sheets are widely used in mechanical parts, aircraft auto parts, præcisionsinstrumenter og radioudstyr, architectural decoration, machine casings, lamps and lighting, consumer electronics, handicrafts, husholdningsapparater, interior decoration, tegn, møbel, automotive decoration and other industries.