High alumina firebricks are classified according to the alumina content which is from lowest 48% to highest 95%, manufactured from mineral of bauxite, corundum, etc. By mixing, press-forming, drying, sintering and machining. High alumina bricks feature stable mechanical strength and thermal shock resistance, with high refractoriness of no lower than 1880¡æ, high alumina bricks are commonly used as refractory lining exposed to heat directly or backup insulation linings in various types of industrial kiln or laboratory furnace.
Descriptions: High-alumina bricks are made from bauxite, a naturally occurring material containing aluminum hydroxide (al[oh]3) and kaolinitic clays. These raw materials are roasted to produce a mixture of synthetic alumina and mullite. By definition high-alumina bricks contain between 60 and 95 percent alumina and much more robust than fireclay refractories at high temperatures and in basic environments. In addition, these bricks exhibit better volume stability and abrasion resistance. Applications: High-alumina bricks are used in blast furnaces, blast-furnace stoves, liquid-steel ladles, steel refining furnaces, glass tanks, ceramic kilns, enamel kilns, rotary cement kilns and other vVarious kilns and furnaces.
Different kinds of industrial furnace.Such as:Hood furnace, heating furnace, cracking furnace, heat treatment furnace, shuttle kiln, tunnel kiln, roller kiln, enamel kiln, ceramic kiln ceiling and wall and insulation lining materials. Item Index Al2O3 75 85 SiO2 22 12 CCS Mpa 90 100 MOR Mpa 16 16 RUL 1500 1550 Thermal shock resistant 900 (times) 20 30 CC 6 5 HR W/m.k (
Checker bricks is strong is widely recognized and accepted by the world community an iron heat exchange capacity, large thermal storage area, ventilation smooth, heat regenerator many small thermal resistance and other superior characteristics. Checker bricks is a heat transfer medium, used in blast furnace stove heat storage room, usually ordered in thermal storage room, play a role in regenerative between "burning furnace cycle" in between "blast period" is Through the convective heat exchange and radiation heat exchange, the cold air heated to hot air. The checker bricks are mainly used in the regenerator of the hot blast stove, and the checker bricks are arranged in an orderly manner. According to the technical requirements of different temperature areas, the general use of silicon lattice brick, clay brick, etc., in some hot air stove, there are also selected high alumina brick, mullite brick etc.
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We are a worldwide supplier and applications expert of specialty refractory products for the ceramics, metallurgy, chemical, petrochemical, and power generation. Alexandria modern trade company specialize in products ranging from refractory bricks, tiles and blocks to mortar, cements, with special expertise in high alumina refractories and alumina silicate refractories (high and super duty). The quality of the products and services of amtc refractories is based on a long track record of our manufacturers being among the largest producers of refractories in north africa, mediterranean, and the middle east & arabian gulf areas with more than 50 years experience in the refractories field. These refractories are distributed through our large distribution network throughout europe, middle east, north africa, and arab gulf. As per order
The bricks we offer are widely applauded for their dimensional stability, compressive strength and durability. Moreover, super heat duty and high alumina fire bricks are the products made from different fractions of refractory grog, fire clays and calcined bauxite of high purity. The different fractions of these raw materials are mixed in counter current mixers and plugged for obtaining homogeneous mixture. The mixture obtained hence, is then pressed in high capacity presses to give the desired shape and size. These pressed shapes are fired in high temperature tunnel kiln at 1300°c and above. These bricks are manufactured as per is: 6 and is: 8 specifications and high alumina in the range heat 5050 to heat 88 in standard, arch and special shapes.We provide these quality assured bricks to the clients at nominal rates.
The bricks we offer are widely applauded for their dimensional stability, compressive strength and durability. Moreover,Super Heat Duty and High Alumina Fire Bricks are the products made from different fractions of refractory grog, fire clays and calcined bauxite of high purity. The different fractions of these raw materials are mixed in counter current mixers and plugged for obtaining homogeneous mixture. The mixture obtained hence, is then pressed in high capacity presses to give the desired shape and size. These pressed shapes are fired in high temperature tunnel kiln at 1300°C and above. These bricks are manufactured as per IS: 6 and IS: 8 specifications and high alumina in the range HEAT 5050 TO HEAT 88 in standard, arch and special shapes.we provide these quality assured bricks to the clients at nominal rates.