The use of alumina , alumina is mainly used in what areas

Alumina is a white amorphous powder , commonly known as bauxite , density 3.9-4.0g/cm3, melting point 2050 ℃, boiling point 2980 ℃, insoluble in water, aluminum oxide mainly two kinds of α -and γ variants industrially from bauxite is extracted .
Now a lot of aluminum products such as : aluminum hydroxide, alumina, calcined alumina high temperature alumina purity alumina industrial grade white aluminum hydroxide aluminum hydroxide, aluminum hydroxide toothpaste grade agate grade aluminum hydroxide filler grade aluminum hydroxide and so on. Wide range of applications regardless of alumina products economic development or life has its existence, it has played an unparalleled role.
Specialty alumina refractory varieties: Advanced ceramic refractory products fiber products as well as lightweight insulation products unshaped products , with its main application areas are:
( 1 ) ultra-high temperature kiln lining structural materials.
( 2 ) high purity metal alloys with rare metals smelting crucible purification .
( 3 ) high-temperature tube furnace thermocouple tube heat insulation.
( 4 ) high-temperature kiln sticks and briquetting pressure washers , etc.
( 5 ) Petroleum and Chemical Industrial temperature corrosion-resistant lining material .
( 6 ) do transparent alumina ceramic high-temperature high-pressure sodium viewing glass tube microwave hood .
( 7 ) in the electronics industry to make the circuit substrate voltage ceramic shell and tube seat tube radome spark plugs and so on.
( 8 ) grinding tools and abrasives such as grinding wheel cutting disc Dies La Sita round nozzles textile porcelain pieces and a variety of high-temperature resistant bearing props .
( 9 ) Chemical Industrial Piston Pump Parts sealing ring.
( 10 ) ferrous metallurgy industry molten metal pipe.
( 11 ) in various industrial sectors such as high-temperature energy-efficient materials like alumina hollow ball alumina whiskers, alumina fiber and products .