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The main purpose of the aluminiumUPDATA:2016-12-29
The purpose of the material to a great extent, depends on the nature of the material.Because aluminum has many excellent properties, aluminum has a very wide range of USES.
Aluminium and aluminium alloy is very versatile, one of the most economy applicable materials.The aluminium production since 1956 than has been among the top of the non-ferrous metal copper production.The current aluminum production and consumption (in tons) after steel, to become the second largest metal; the application of humanAnd aluminum is very rich in resources, according to preliminary calculations, aluminum mineral reserves accounting for more than 8% of the earth's crust material.
Light weight and corrosion resistance of aluminum, is two outstanding characteristics of its performance.The density of aluminum is small, only 2.7 g/cm, although it is soft, but can be made into all kinds of aluminum alloy, such as hard, hard aluminum, aluminum antirust aluminum, cast aluminum, etc.The aluminum alloy is widely used in aircraft, cars, trains, ships and other manufacturing industries.In addition, the space rocket, the space shuttle, the satellite also use large amounts of aluminum and aluminum alloy.For example, a supersonic jet of aluminum and aluminum alloy by about 70%.Also extensive use of aluminum in ship building, a large passenger ship with aluminum amount often of thousands of tons.The electrical conductivity of the aluminum is second only to silver, copper and gold, while its conductivity only two-thirds of copper, but density is only 1/3 of the copper, so conveying the same amount of electricity, the quality of aluminium wire is only half of the copper wire.On the surface of the aluminum oxide film not only have the ability of corrosion resistance, and has a certain insulation, so aluminum in electrical manufacturing industry, wire and cable industry and radio industry has a wide range of USES.Ability of thermal conductivity of aluminum is a good conductor of heat, it is three times larger than iron, available on the industrial aluminum manufacturing all kinds of heat exchanger, heat dissipation material and cooking utensils, etc.Aluminum has good ductility (its ductility after gold and silver), in 100 ℃ ~ 150 ℃ can be made into thin 0.01 mm aluminum foil.The aluminum foil is widely used in cigarette packaging, candy, etc., can also be made from aluminum wire, aluminum strip, and rolling all kinds of aluminum products.Oxide film of aluminum surface with dense, less susceptible to corrosion, is often used to manufacture chemical reactor, medical equipment, refrigeration equipment, oil refining equipment, oil and gas pipelines, etc.Aluminium has silver luster (general metal powder color is black), commonly used for coating, commonly known as silver powder, silver paint, in order to protect the iron products not corrode, and beautiful.Gives off a lot of aluminum in oxygen combustion heat and glare of light, often used in the manufacture of explosive mixture, such as ammonium aluminum powder (composed of ammonium nitrate, charcoal powder, aluminum powder, carbon black and other combustible mixture of organic matter, burning mixture (such as made of thermit bombs and shells can be used to attack difficult target to fire or tanks, artillery, etc.) and lighting mixture (e.g., containing barium nitrate, aluminum powder, 28% 68%, shellac 4%).Thermit are commonly used to melting refractory metal and welded rail, etc.Aluminum is used in the process of steelmaking deoxidizer.Aluminum powder and graphite, titanium dioxide (or other high melting point metal oxide) according to certain ratio after mixing, besmear is on metal, made by high temperature calcination and high-temperature metal ceramic, it have important application in rocket and missile technology.Aluminum plate light reflection performance is very good also, reflect ultraviolet light is better than silver, aluminum, the more pure, its reflection ability, the better, so are commonly used to manufacture high quality mirror, such as ovens, mirror, etc.Aluminum has sound-absorbing performance, sound effect is better also, so the broadcasting room, modern large construction indoor ceiling also USES aluminium, etc.
Low temperature resistant, aluminum at low temperature, its strength but increases without brittle, so it is ideal for low temperature device material, such as cold storage, freezer, Antarctic snow vehicles, oxidation of hydrogen production unit.

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