Anodized aluminum

Anodizing is a process used to increase the thickness of the natural oxide layer on the surface of metal parts. It increases corrosion and wear resistance, and during the process the anodized aluminum surface can be dyed into many different colors,such as gold anodized aluminum sheet,black anodized aluminum sheet,white anodized aluminum sheet ect.

Basic principle: aluminum cathode oxidation is essentially the electrolysis of water. When water is electrolyzed, O2 – ions react with anodic aluminum to form alumina (Al2O3). Generally, sulfuric acid, chromic acid, phosphoric acid and oxalic acid are selected as the electrolyte to form a hard porous oxide film in sulfuric acid at about 0C. Different materials have great influence on the oxide film. For 6000 series Al Mg Si (6063.6061.6065), it can form not only protective oxide film, but also dyeing oxide film and bright oxide film. However, for cast aluminum alloy, it can form protective oxide film, but dyeing oxide film can only form thick color.

Anodized Aluminum is stronger and more durable than mill finish aluminum. The process of anodizing allows for the steel to embody these characteristics. Anodizing involves an aluminum coil or sheet being placed into a chemical acid bath. An electrical current is passed through the acid, causing the surface to oxidize. The oxidation forms a strong coating on the surface of the aluminum.

Anodize aluminum is commonly found in applications where the material may be exposed to the elements. It is also found in kitchen equipment like pots and pans because the material distributes heat evenly.

Henan Huawei Aluminum Co., Ltd

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length:under 12000mm, 0.2 – 100 mm thin aluminum sheet and thick plate, which are used in diverse industrial applications. Such as:aircraft grade aluminum sheet, marine grade aluminium alloy sheet and so on.

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News

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What is anodized aluminum sheet?

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