Features and Uses

The biggest characteristic of aluminum and aluminum alloys is, first of all, that their bulk density is about 1/3 of that of steel, while their specific strength (the ratio of strength limit to specific gravity) can reach or exceed that of structural steel. Secondly, aluminum and aluminum alloys are easily processed into various shapes and can be adapted to various connection processes, thus providing favorable conditions for the construction of the most economical and reasonable form of section. Therefore, the use of aluminum alloy can not only greatly reduce the weight of the building, save materials, but also reduce the transportation of components, installation workload, speed up the construction progress. This to the earthquake area and the mountainous areas and remote areas with inconvenient traffic, its economic effect is more remarkable. Aluminum and aluminum alloys have beautiful color, good corrosion resistance, high reflectance to light and heat, good sound absorption performance, and various colors can be obtained by chemical and electrochemical methods. So aluminum is widely used in industry, civil construction and automobile body, frame, cylinder head and so on.

Type of aluminum plate for automobile

1.car body, commonly used aluminum alloy materials mainly include 2000 series, 5000 series, 6000 series alloy plate, profile, pipe and high-performance cast aluminum, different stress parts using different types of aluminum alloy materials. The 2000 SERIES ALLOY IS A KIND OF HEAT-TREATABLE ALUMINUM ALLOY, WHICH HAS EXCELLENT FORGING PROPERTY, HIGH STRENGTH, GOOD WELDING PERFORMANCE AND GOOD BAKING STRENGTHENING EFFECT, but its corrosion resistance is worse than other series of aluminum alloys. Currently, 2036 and 2022 alloys have been partially used in automotive body panels. 5000 series alloy is a kind of aluminum alloy which can not be strengthened by heat treatment. It has good corrosion resistance and welding performance. However, it may produce Lueders line and delayed yield during machining deformation in the annealing state, so it is mainly used in the parts with complex shapes such as body inner plate. 6000 SERIES alloys ARE HEAT-treatable aluminum alloys WITH high strength, good plasticity and excellent corrosion resistance. Compared with the steel plate, the yield strength and tensile strength of the 6000 series 2T4 plate are similar, and the hardening coefficient even exceeds the steel plate. At present, 6009, 6010 and 6016 aluminum alloys have been used in the outer and inner panels of automobile bodies because of their good plasticity, and can achieve artificial aging and obtain higher strength in the process of painting and baking after forming. The body of Audi A8 adopts this aluminum alloy. In addition, in order to enhance the buffering capacity and fatigue strength of the automobile, Germany VAW, Japan KOK, China Southwest Aluminum are based on the alloy, research and development of high performance automotive aluminum plate and aluminum profile. At present, 6000 series alloy for the main body.

2. car chassis, using 5000 series or 6000 series material.

3. the car skeleton, the most stressed part of the body, using 2000 or 7000 series of materials, heat treatment can strengthen.

4. Car seat, made of 2000 or 6000 series material, can be strengthened by heat treatment.

5. The skin part, the minor stress part of the body, adopts 5000 or 6000 series materials.

6. Door part, made of 5000 series or 6000 series material.

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