What Is Anodized Aluminum Sheet?

Anodized aluminum plate is an aluminum plate that is placed in the corresponding electrolyte (such as sulfuric acid, chromic acid, oxalic acid, etc.) as the anode, and is electrolyzed under specific conditions and applied current.

Anodized aluminum plate

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anode

The aluminum plate 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, which has enhanced the anti-corrosion performance. It will not corrode for thousands of hours in = 0.03NaCl salt spray. The thin layer of the oxide film has a large number of micropores, which can absorb various lubricants, which is suitable for manufacturing engine cylinders or other wear-resistant parts. The film micropores 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.

Extruded materials are used to manufacture welded structures that require both high strength and high fracture toughness, such as trusses, rods, and containers for transportation vehicles; large heat exchangers, and those that cannot be solidified after welding Parts; can also be used in manufacturing

Anodized aluminum plate is widely used in machinery parts, aircraft and automobile parts, precision instruments and radio equipment, building decoration, machine housing, lighting, consumer electronics, crafts, household appliances, interior decoration, signage, furniture, automotive decoration and other industries.

(1) Good processability: the anodized aluminum plate has strong decoration, moderate hardness, and can be easily bent and formed for continuous high-speed stamping, which is convenient for direct processing into products without complicated surface treatment, which greatly shortens the production cycle and Reduce product production costs.

(2) Good weather resistance: The anodized aluminum plate with standard thickness oxide film (3m) will not change color for a long time in the room. It will not corrode, oxidize and rust. The anodized aluminum plate with thick oxide film (10m) can be used outdoors, and can not change color under long-term exposure to sunlight.

(3) Strong metal feeling: the anodized aluminum plate has high surface hardness, reaches gem level, good scratch resistance, no paint cover on the surface, retains the metal color of the aluminum plate, highlights the modern metal feeling, and improves product grade and added value.

(4) High fire resistance: pure metal products, no paint or any chemical substances on the surface, no burning at 600 degrees, no toxic gas, and meet the requirements of fire protection and environmental protection.

(5) Strong anti-fouling: no fingerprints will be left, and there will be

(1) Anodizing

General process

Aluminum workpieces Upper hangers Degreasing Water washing Alkali etching Water washing Light-out Water washing Anodizing Water washing Deionized water washing Dyeing or electrolytic coloring Water washing Deionized water washing Closure Water washing Lower hanger

High-brightness aluminum product process

Aluminum workpieces mechanical polishing degreasing water washing neutralization water washing chemical or electrochemical polishing water washing anodizing water washing deionized water washing dyeing or electrolytic coloring water washing deionized water washing closed water washing mechanical bright ^{[ 1]}