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Alumina hollow ball brick
High temperature insulation refractory material, is blown by the melting nozzle alumina hollow ball, composite binder, the vibration molding, high temperature firing.
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Introduction
Product introduction:High temperature insulation refractory material, is blown by the melting nozzle alumina hollow ball, composite binder, the vibration molding, high temperature firing.
physical and chemical index
| Serial Number |
Project |
Indicators |
|
| 1 |
chemical composition |
Al2O3/% |
≥90 |
| 2 |
Fe2O3/% |
≤0.2 |
|
| 3 |
Physical Performance |
Bulk density/(g/cm3） |
1.3～1.7 |
| 4 |
Normal temperature compressive strength/(MPa) |
≥8 |
|
| 5 |
Load softening temperature (0.2MPa,T0.6)/℃ |
≥ 1700 |
|
| 6 |
Thermal shock stability (1100 ℃, water cooling)/time |
≥8 |
|