Aluminum's light weight and corrosion resistance are two outstanding characteristics of its performance.
1, aluminum density is very small, only 2.7g /cm³, although it is soft, but can be made into a variety of aluminum alloy, such ashard aluminum, super hard aluminum, rust aluminum, cast aluminum, etc.. These aluminum alloys are widely used in aircraft,automobiles, trains, ships and other manufacturing industries. In addition, space rocket, space shuttle, artificial
satellite alsouse a large number of aluminum and its aluminum alloy.
2. Aluminum is second only to silver, copper and gold in electrical conductivity. Although it has only two thirds the conductivity of copper, it has only one third the density of copper, so it has only half the mass of copper to transport the same amount of electricity. The oxide film on the surface of aluminum not only has the ability of corrosion resistance, but also has a certain insulation, so aluminum is widely used in electrical manufacturing industry, wire and cable industry and radio industry.3,aluminum is a good conductor of heat, its thermal conductivity is 3 times greater than iron, industrial aluminum can make all kinds of heat exchangers, heat dissipation materials and cooking utensils.
4, aluminum has good ductility (its ductility is second only to gold and silver), at 100 ℃ ~ 150 ℃ can be made into thinner than 0.01mm aluminum foil. These aluminum foil is widely used for packaging cigarettes, candy, etc., can also be made into aluminum wire, aluminum strip, and can be rolled various aluminum products.
5. The surface of aluminum has a dense oxide protective film, which is not easy to be corroded. It is often used to manufacture chemical reactors, medical devices, refrigeration devices, petroleum refining devices, oil and gas pipelines, etc.
6, aluminum powder has a silver-white luster, often used to do paint, commonly known as silver powder, silver paint, to protect iron products from corrosion, and beautiful.
7. Aluminum emits a tremendous amount of heat and dazzling light when burned in oxygen, and is often used in explosive compounds such as ammonium aluminum explosives and lighting compounds.
8. Thermite is often used to melt refractory metals and weld rails, etc. Aluminum is also used as a deoxidizer in steelmaking and has important applications in rocket and missile technology.
7, aluminum plate reflectance of light is also very good, reflecting ultraviolet light is stronger than silver, the purer
aluminum, its reflectance is better, so it is often used to manufacture high-quality mirrors, such as solar oven mirrors.
8, aluminum has sound absorption performance, sound effect is also good, so it is ideal for low temperature device material, such as cold storage, freezer, Antarctic snow vehicle production device.
9. Aluminum-air battery, as its name implies, is a new type of battery with aluminum and air as battery materials. It can be used for both land and deep sea. It can be used as power battery and signal battery with long life and high specific energy.