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铝是银白色金属,也是应用最广的有色金属。由于铝富集于地表层6公里厚的区域内,占地壳总量的8％,仅低于氧和硅。20世纪60年代,铝在世界有色金属的产量上已超过铜,占居首位。铝质轻,富有延展性,容易导电,过去多用于制造电线。随着科学技术的进步和工业的发达,把适量的其它金属加到金属铝中,可制成铝基合金、镁基合金、铝青铜等,广泛用作建筑,包装材料和飞机、车辆、船舶、火箭构件等。铝又逐渐渗入到人们生活的许多方面,如食物有添加剂:发酵
Aluminum is a silver-white metal, is also the most widely used non-ferrous metals. Since aluminum is concentrated in the 6 km thick surface area, accounting for only 8% of the total crust, it is only below oxygen and silicon. In the 1960s, aluminum surpassed copper in the production of non-ferrous metals in the world, occupying the first place. Light aluminum, ductile, easy to conductive, in the past used to make wire. With the progress of science and technology and industrial development, the right amount of other metals added to aluminum, can be made of aluminum-based alloys, magnesium-based alloys, aluminum bronze, widely used in construction, packaging materials and aircraft, vehicles, ships , Rocket components and so on. Aluminum is also gradually infiltrating many aspects of people’s lives, such as food additives: fermentation