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$Henan Lite Refractory Material Co.Ltd.$

Henan Lite Refractory Material Co.Ltd.

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fire clay brick High mechanical strength,Good thermal shock resistance;
AZS Bricks AZS arch crown refractory block/brick is manufactured using high quality zirconia and zirconium corundum clinker raw materials with ceramic and chemical bonding.It is shipped underhigh pressure and fired with high temperature with scientific
Mullite insulation brick Light weight mullite insulating brick is made from pure mullite and adding alumina powder according to different type sintering in high temperature.
$Refractory cement$
Refractory cement Refractory cement also is called bauxite cement,high alumina cement,aluminate cement. 1.General refractory cement:made by high alumina bauxite and limestone materials 2.High pure refractory cement:made by industrial alumina and limestone Fea
High alumina castable Made from high alumina aggregate, refractory powder, binders and other additives. Features high mechanical strength,good thermal shock resistance,abrasion resistance, application mainly used as liner of furnace, blast-furnace,heating furnace

Light Weight Alumina bubble brick

►Description
Alumina bubble brick also know as Hollow Alumina sphere bricks, sintered at high temperature after molding using hollow alumina sphere, corundum powder, and calcined powders mixed in definite proportion as raw material.
The high alumina bubble brick Characteristic:
1.high temperature resistance
2.low thermal conductivity
3.good thermal insulation
4.good chemical stability (acid-base erosion resistance )
5.low bulk density (lighter than the same kind of material ,thin kiln wall, low cost )

►Technical parameters

Item	Bubble alumina brick
Item	85	90	99
Max service temperature	1750°C	1800°C	1800°C
Al2O3/%	≥85	≥90	≥99
SiO₂ /%	≤14	≤9	≤0.3
Fe₂O₃/%	≤0.2	≤0.2	≤0.2
Bulk density/g.cm3	1.4-1.9	1.4-1.9	1.5-1.8
Cold crushing strength/Mpa	≥18	≥18	≥15
Refractoriness under load (0.1MPa,0.6%)	≥1700°C	≥1700°C	≥1700°C
Reheating Linear Change % (1600 °C,3h) ≤	±0.3	±0.2	-0.25
Thermal expansion coefficient (Room temp-1300°C)	7.8	8.0	8.6
Thermal conductivity w/(m.k) (Average 800°C)	0.55	0.6	0.75

►Application
Mainly used in the high-thermal kilns or furnace such as refractory,industrial ceramic, electric ceramic,petrochemical engineering,metallurgy engineering industry as inner layer or the insulation materials for ultra high temperature kilns. This brick can contact with the flame directly, and used as the inner layer of high thermal furnace directly. It can service the molybdenum silicide electric furnace, molybdenum wire furnace,tungsten-rod furnace,high-thermal NG intermittent kiln and tunnel kilns, etc.

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