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High Quality Refractory Bricks
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Product Introduction:
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Alumina Bubble Brick is a kind of brick made of alumina hollow spheres as the main raw material, high-performance alumina ultra-fine powder as an additive, organic materials as a binder, formed and fired.
Features:
- High service temperature
- High purity
- Low thermal conductivity
- Low bulk density
- High mechanical strength
Application:
Alumina Hollow Ball Brick can be used in high-temperature shaft kilns, shuttle kilns induction furnaces, nitriding furnaces, etc., and also can be used for service linings in manufacturing high-purity quartz for the electronics industry such as ceramic tile linings in gas turbines and backup linings in reactors.
Detailed Photoes:
Technical Data Sheet:
| Item | Unit | FABZ-85 | FABZ-90 | FABZ-99 | |
| Chemical Composition | Al2O3 | % | ≥85 | ≥90 | ≥99 |
| SiO2 | % | ≤13 | ≤8 | ≤0.2 | |
| Fe2O3 | % | ≤0.5 | ≤0.3 | ≤0.2 | |
| Bulk Density | g/cm3 | 1.4-1.6 | 1.5-1.7 | 1.6-1.8 | |
| Cold Crushing Strength | MPa | ≥6 | ≥8 | ≥9 | |
| 0.1MPa, T0.6, R.U.L. | ℃ | ≥1650 | ≥1700 | ≥1750 | |
| Thermal Conductivity (average temp. 800℃) | W/(M.K) | ≤0.8 | ≤1.3 | ≤1.5 | |
| Max Working Temperature | ℃ | 1650 | 1700 | 1750 | |
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