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Help CenterHigh Alumina Refractory Brick for Cement Klin
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Hot Sale Generality High Alumina Brick in RefractoryUS$ 300 - 800MOQ: 10 Metric Tons
Specifications
High alumina Refractory brickRefractory brick for kiln liner
Corundum Refractory Brick
Refractory Brick:
Refractory brick are manufactured by adding materials with expansion different from that of bauxite to the high alumina bricks and based on the principle of multiphase increasig toughness,tiny cracks are generated in its constitutionalstructure,which improve the thermal shock resistance of the products.The bricks are characterized by high resistance to spalling and good refractoriness underload and are used in the transition zone,decomposition zne of medium and small cement rotary kiln.
Al2O3 (%) |
≥60 |
≥70 |
≥75 |
78-80 |
SIO2 (%) |
32 |
22 |
20 |
≥18 |
Fe2O3 (%) |
≤1.7 |
≤2.0 |
≤1.8 |
≤1.8 |
Na2O+K2O(%) |
<2.3 |
<2.0 |
<1.2 |
|
Refractoriness |
1790 |
>1770 |
>1790 |
≥1790 |
refractoriness under load 0.2mpa(°C) |
1450 |
>1510 |
>1520 |
≥1520 |
Porosity (%) |
22 |
<22 |
<21 |
20 |
Bulk density(g/cm3) |
2.33 |
2.43-2.48 |
2.45-2.55 |
2.55 |
Cold Cushing strength (Mpa) |
≥45 |
≥50 |
≥54 |
≥60 |
Thermal expansion at 1000°C (%) |
≤0.3 |
≤0.3 |
≤0.3 |
≤0.3 |
Reheating shrinking change(%) 1500°CX24h |
-0.3 |
-0.3 |
-0.3 |
-0.3 |
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