Introduction of aluminum alloy profiles-best Seamless Steel Pipe china-Laixing Steel Pipe

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Introduction of aluminum alloy profiles

Aluminum alloy profiles are the most widely used non-ferrous structural materials in industry. Metals used in machinery manufacturing, transportation machinery, power machinery and aviation industry

Jul 26,2024

Aluminum alloy profiles in aviation, aerospace, automotive, machinery manufacturing, shipbuilding, construction, decoration. And chemical industry has been widely used. With the rapid development of science and technology and industrial economy in recent years, the demand for aluminum alloy welded structural parts is increasing, which makes the weldability research of aluminum alloy further. The wide application of aluminum alloy has promoted the development of aluminum alloy welding technology, and the development of welding technology has expanded the application field of aluminum alloy, so the welding technology of aluminum alloy is becoming one of the hot spots of research.

The density of pure aluminum is small (ρ=2.7g/cm3), about 1/3 of iron, low melting point (660℃), aluminum is face-centered cubic structure, so it has a high plasticity (δ:32~40%, ψ:70~90%), easy processing, can be made into various profiles, plates, good corrosion resistance; However, the strength of pure aluminum is very low, and the annealing state σb value is about 8kgf/mm2, so it is not suitable for structural materials. Through long-term production practice and scientific experiments, people gradually add alloying elements and use heat treatment and other methods to strengthen aluminum, which gets a series of aluminum alloys. The alloy formed by adding certain elements can maintain the advantages of pure aluminum while maintaining high strength, σb values can reach 24 ~ 60kgf/mm2. This makes its "specific strength" (strength and specific gravity ratio σb/ρ) than many alloy steel, become an ideal structural material, widely used in machinery manufacturing, transportation machinery, power machinery and aviation industry, aircraft fuselage, skin, compressor and other often made of aluminum alloy to reduce weight. The welding of aluminum alloy instead of steel plate can reduce the weight of the structure by more than 50%.