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Description of Corundum-mullite Insulation Brick
Corundum-mullite Insulation Brick in Light Weight refers to containing AL2O3 30% ~ 46% of lightweight refractory products, clay clinker or light clinker and plastic clay as the main raw material, usually fuel production, but also can send or chemical foaming method porous structure. Common light chamotte bulk density of 0.75 ~ 1.2g / cm3, mainly for industrial kilns does not melt and no erosion of the contact action of gas insulation layer material, the using temperature of Corundum-mullite Insulation Brick is 1200 ~ 1400 ° C.
Specifications for Corundum-mullite Insulation Brick
Apparent porosity/ %
Cold crushing strength/ Mpa
Refractoriness under load/ °C
Reheating Linear Change(1450°C,2h)/%
This test must be conducted.The data of the test shall be included in the quality certificate.
Features of Corundum-mullite Insulation Brick
Good volume stability at high temperature.
High-temperature creep rate is low.
Good thermal shock resistance.
Good corrosion resistance.
Good wear resistance.
Typical Application of Corundum-mullite Insulation Brick
Furnaces of metallurgy industry, heat treatment furnace.
Furnaces of chemical industry and construction industry.
Furnace of incineration of garbage, recirculating fluidized bed furnace .
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