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Question:

What are the characteristics of excellent aluminum?

What are the characteristics of excellent aluminum?

Answer:

1. Density: the density of aluminum nearly 2700kg / m3, about 35% iron density. 2. Can strengthen: aluminum by cold working to enhance the strength more than doubled. And by adding magnesium, zinc, copper, manganese, silicon, lithium, scandium and other alloying elements, and then heat-treated to further strengthen its specific strength comparable to high-quality alloy steel.
7. Reflecting strong: polished aluminum surface of the white reflection rate of 80% or more, the higher the purity, the higher reflectivity. Meanwhile, aluminum infrared, ultraviolet, electromagnetic waves, heat radiation have good reflective properties. 8. Non-magnetic, non-sparking shock. 9. There are sound absorbing. 10. Resistant to nuclear radiation. 11. Beautiful.
5. No low temperature brittleness: aluminum Celsius below zero, as the temperature decreases, the strength and ductility injustice does not decrease but increase. 6. Electrical conductivity, thermal conductivity: electrical conductivity, thermal conductivity of aluminum public inferior silver, copper and gold.
4. Corrosion resistance: the surface of aluminum and its alloys, easy to generate a layer of dense, solid Al2O3 protective film. This layer of protective film only under intense action halogen ion or an alkali ions will be destroyed. Therefore, aluminum has good resistance to atmospheric (including industrial atmosphere and oceans big steam) water corrosion and corrosion ability. Resistant to most acids and organic corrosion inhibitor use, resistant to weak lye corrosion; use of protective measures, can improve the corrosion resistance of aluminum alloy.
3. Easy processing: aluminum casting casting method using either. Aluminum plastic, and can be rolled into sheet and foil; pull into tubes and filaments; extruded into various civilian profile; can most machines can reach a maximum speed of turning, milling, boring, planing and other machining.

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