High alumina bricks contain aluminum oxide and traces of several other materials. Their refractoriness – ability to withstand extreme heat conditions – increases with an increase in alumina percentage. This means the more alumina you put into a brick, the more heat resistant it becomes. However, more alumina also means the cost of the bricks would increase.
Alumina – the oxide - offers incredible benefits like hardness, strength and spalling resistance. The oxide is insoluble in water and super-heated steam, and in most inorganic acids and alkalis.
High alumina bricks are most commonly used in cement, lime and ceramic kilns, hearth & shaft of blast furnaces, and in lead drossing furnaces. The experts say high alumina bricks carry the all-purpose characteristics of fire clay bricks into higher heat conditions, making them fit for lining the furnaces operating up to 3350°F.
High alumina bricks can be segregated as mullite refractories and corundum refractories. Mullite refractories contain 72 per cent alumina and 28 per cent silica. Corundum, on the other hand, contains 99 per cent alumina!
Besides alumina refractories, a typical refractory plant produces fire clay bricks, castables, ramming masses & mortars, and gunning mixes. Steel, glass, non-ferrous, and aluminum are among the top consumers of refractories products in the world.
Alumina – the oxide - offers incredible benefits like hardness, strength and spalling resistance. The oxide is insoluble in water and super-heated steam, and in most inorganic acids and alkalis.
High alumina bricks are most commonly used in cement, lime and ceramic kilns, hearth & shaft of blast furnaces, and in lead drossing furnaces. The experts say high alumina bricks carry the all-purpose characteristics of fire clay bricks into higher heat conditions, making them fit for lining the furnaces operating up to 3350°F.
High alumina bricks can be segregated as mullite refractories and corundum refractories. Mullite refractories contain 72 per cent alumina and 28 per cent silica. Corundum, on the other hand, contains 99 per cent alumina!
Besides alumina refractories, a typical refractory plant produces fire clay bricks, castables, ramming masses & mortars, and gunning mixes. Steel, glass, non-ferrous, and aluminum are among the top consumers of refractories products in the world.
No comments:
Post a Comment