Anodized aluminum strips
The aluminum ribbon is placed in the corresponding electrolyte (such as sulfuric acid, chromic acid, oxalic acid, etc.) as the anode, and electrolysis is performed under the specific conditions and applied current. The aluminum strip of the anode is oxidized, and a thin layer of aluminum oxide is formed on the surface, the thickness of which is 5-20 microns, and the hard anodized film can reach 60-200 microns. The anodized aluminum plate has improved its hardness and abrasion resistance, up to 250-500 kg / mm2, good heat resistance, hard anodized film melting point up to 2320K, excellent insulation, and breakdown voltage resistance up to 2000V, it has enhanced the anti-corrosion performance, and it will not corrode in ω = 0.03 NaCl salt spray for thousands of hours. There are a large number of micropores in the thin layer of the oxide film, which can absorb various lubricants, which is suitable for manufacturing engine cylinders or other wear-resistant parts. The micropores of the film have strong adsorption ability and can be colored into various beautiful colors. Non-ferrous metals or their alloys (such as aluminum, magnesium and their alloys) can be anodized. It has strong decoration, moderate hardness, can be easily bent and formed, and can be continuously punched at high speed, which can be directly processed into products without complicated surface treatment, which greatly shortens the production cycle and reduces the production cost.