Raw material
Its main raw material is high quality alumina powder.
Processing
After melting through the electric arc furnace, blowing and instantaneously cooling in air.
Advantages
1.light weight, closed hole and high temperature resistance
2.high mechanical strength, which is several times higher than general light products
3.its bulk density is the half of corundum products
| Guarantee value | Typical value | |
| Al2O3 | ≥99 | 99.34 |
| SiO2 | ≤0.2 | 0.15 |
| Fe2O3 | ≤0.1 | 0.06 |
| Bulk density(g/cm3) | 0.5-1.0 | 0.75 |
| Broken rate(%) | ≤15 | 12 |
| Refractoriness (℃) | 1800 | |
| Particle size | 0.2-1mm,1-2mm,2-3mm,3-5mm | |
| Test standard | GB/T3044-89 | |
| Package | 25kg/bag or as customers’ requirements | |
Applications
1) It is the ideal heat-insulated filler for high temperature furnaces,such as petrochemical industrial gasifier, carbon black industrial reactors, metallurgical industrial induction furnace and other high temperature, ultra-high temperature furnace.
2) high quality aggregate for high temperature light refractory castable.
3) various shapes of insulation products, bubble alumina bricks.
