Aluminum surface treatment types and characteristics
ã€China Aluminum Industry Network】 Aluminum profiles are aluminum materials that have different cross-sectional shapes through hot-melting and extrusion. Aluminum production processes include three processes: casting, extrusion and coloring. Among them, the color includes: oxidation, electrophoretic coating, fluorocarbon spray, powder coating, wood grain transfer and other processes.
According to purpose can be divided into the following categories:
1. Architectural aluminum profiles (two kinds of doors and windows and curtain walls)
2. Radiator aluminum profiles.
3. General industrial aluminum profiles: mainly used for industrial production and manufacturing, such as automated machinery and equipment, the skeleton of the enclosure and various companies to customize molds according to their own mechanical equipment requirements, such as assembly line conveyors, hoists, dispensers, Testing equipment, shelves, etc., electronic machinery industry and clean rooms are used mostly.
4. Rail vehicle structure Aluminum alloy profile: It is mainly used for the manufacture of rail vehicle body.
5, mounted aluminum profiles, made of aluminum alloy frame, mounted a variety of exhibitions, decorative painting.
According to alloy classification:
Can be divided into 1024, 2011, 6063, 6061, 6082, 7075 and other award-winning aluminum profiles, of which 6 series are more common, different grades differ in the ratio of various metal components is not the same, in addition to commonly used doors and windows Aluminum profiles such as 60 series, 70 series, 80 series, 90 series, curtain wall series and other architectural aluminum profiles, industrial aluminum profiles without a clear model distinction, most of the production plants are processed in accordance with the customer's actual drawings.
Compared with other metal materials, aluminum and aluminum alloys have the following characteristics:
1, the density of small aluminum and aluminum alloy density close to 2.7g /, about 1/3 of iron or copper.
2, high strength aluminum and aluminum alloy high strength. After a certain degree of cold processing can strengthen the matrix strength, some of the aluminum alloys can also be strengthened by heat treatment.
3, conductive thermal conductivity of aluminum conductive thermal conductivity second only to silver, copper and gold.
4. Good corrosion resistance The surface of aluminum is easy to naturally produce a layer of dense and strong AL2O3 protective film, which can well protect the substrate from corrosion. Through anodizing and coloring by hand, cast aluminum alloys with good casting properties or deformed aluminum alloys with good plasticity can be obtained.
5, easy processing Add a certain amount of alloying elements, you can get good casting performance of cast aluminum or plastic deformation of good processing aluminum alloy.
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