Aluminum ingot for remelting is produced by molten salt electrolysis method using alumina and cryolite. Products meet the national standard GB/T1196-2002. The surface of ingot is clean and smooth. Introduction Aluminum is a silver-white metal that ranks third in the earth's crust after oxygen and silicon.Aluminum is less dense, only 34.61% of iron and 30.33% of copper, so it is also called light metal.Aluminum is the world's output and usage are second only to steel non-ferrous metals.The density of aluminium is only 2.7103g/cm3, about a third of that of steel, copper or brass.Because of its light weight, aluminum is often used in the manufacture of vehicles, trains, subways, ships, airplanes, rockets, airships and other land, sea and air vehicles to reduce the dead weight and increase the loading capacity. In our daily industrial raw materials called aluminum ingots, according to the national standard (GB/T 1196-2008) should be called "remelting with aluminum ingots", but we are used to "aluminum ingots".It is produced by electrolysis with alumina - cryolite.There are two kinds of aluminum ingots after they enter into industrial application: cast aluminum alloy and deformed aluminum alloy.Casting aluminum and aluminum alloys are castings of aluminum produced by casting method;Deformable aluminium and aluminium alloys are manufactured by means of pressure processing: plates, belts, foils, tubes, rods, moulds, wires and forgings.According to the national standard, "aluminum ingots for remelting are divided into 8 grades according to chemical composition, namely Al99.90, Al99.85, Al99.70, Al99.60, Al99.50, Al99.00, al99.7e, al99.6e" (note: the number after Al is the aluminum content).
