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Bubble Alumina Brick
Description
Bubble alumina brick is made of alumina bubble as main raw material, high performance corundum ultrafine powder as additive, adding organic binder and firing at 1750 ℃. It belongs to one kind of super high temperature energy saving material. It has the advantages of good high temperature resistance, low thermal conductivity, small change of reheating linear, good heat preservation effect and obvious energy saving effect (up to 30%). Mainly used in refractory, industrial ceramics, electronic ceramics, petrochemical, metallurgy and other industries of high temperature kiln lining and ultra-high temperature furnace insulation materials,Such as high-temperature energy-saving down-draught kiln, shuttle kiln, molybdenum wire furnace, tungsten rod furnace, induction furnace, nitriding furnace, gasifier, carbon black reaction furnace and other kilns,It can adapt to high temperature atmosphere in various kilns and is very stable. It has obvious effect on lightening the weight of furnace body, reforming structure, saving materials and saving energy,It is a kind of high-grade lightweight refractory products with wide use and excellent performance.
The Technical Parameters Are As Follows:
The Technical Parameters Are As Follows:
| Item | Ultra Purity Bubble Alumina Brick | Bubble Alumina Brick | ||
| HAB-99 | SAB-99 | SAB-90 | SAB-85 | |
| Maximum Service Temperature(℃) | 1800 | 1800 | 1800 | 1750 |
| Al2O3,≥% | 99.3 | 99 | 90 | 85 |
| SiO2, ≤% | 0.15 | 0.3 | 9 | 14 |
| Fe2 O3,≤% | 0.1 | 0.2 | 0.2 | 0.2 |
| Bulk Density(g/cm3) | 1.5~1.8 | 1.5~1.8 | 1.4~1.9 | 1.4~1.9 |
| Cold Crushing Strength,≥Mpa | 12 | 15 | 18 | 18 |
| Refractoriness Under Load,(0.1Mpa,0.6%),≥ | 1700 | 1700 | 1700 | 1700 |
| Reheating Linear Change,(1600℃ⅹ8h) | -0.25 | -0.25 | ±0.2 | ±0.2 |
| Thermal Expansion Coefficient,(Room Temperature To 1300℃) | 8.6 | 8.6 | 8 | 7.8 |
| Thermal Conductivity(Average 800℃) | 0.75 | 0.75 | 0.6 | 0.55 |
According to your needs, we can provide you with all kinds of suitable grade of standard brick, shaped brick, combined brick, adhere to the principle of quality first, to provide you with quality and thoughtful service, welcome to know and negotiate at any time.
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