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Fireproof Clay Insulating Brick
Fire Clay Insulating Brick is a kind of insulation material adopting organic matter increase the porosity of refractory, which has such advantages as high porosity, small volume density, good insulation effect, high mechanical intensity, small thermal conductivity and long service life.
Description
1.Fire Clay Insulating Brick Description：
The Al2O3 content of light clay refractory bricks is 30% to 46%. It is a lightweight refractory product, which is mainly composed of clay or light clinker. Usually it can be made into combustible by chemical or foam method, and finally form a multi-hollow structure. The bulk density of commonly used lightweight clay bricks is 0.75~1.20g/cm3, the compressive strength is 2.0~5.9Mpa, and the thermal conductivity is 0.221~0.442W/m.k (1350°C).
2.Fire Clay Insulating Brick Features：
(1) Good heat resistance and high temperature resistance.
(2) The thermal expansion is small and the peeling resistance is good.
(3) Good corrosion resistance.
(4) Good sintering resistance.
3.Fire Clay Insulating Brick Technical Data：
Item | 1.0 | 2.0 | 3.0 |
Al2O3 (%) | 38--40 | 38--40 | 38--40 |
Fe2O3(%) | 4 | 44 | 1.2 |
SiO2(%) | 55 | 55 | 55 |
Bulk Density (g/cm3) | 0.6 | 0.8 | 1.0 |
Apparent Porosity % | 70 | 60 | 55 |
Cold Crushing Strength(Mpa) ≥ | 2.0 | 2.5 | 3.0 |
Thermal Conductivity(W/m.k)(1000°C) | 0.33 | 0.60 | 0.45 |
Max Service Temperature (°C) | 1200 | 1280 | 1300 |
4.Fire Clay Insulating Brick Applications：
Lightweight clay thermal insulation bricks are corrosive thermal insulation materials and will not come into contact with molten materials. They are mainly used in various industrial furnaces.
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