Fused Al2O3 Hollow Ball
Fused Al2O3 hollow ball is a new type of high temperature insulation material which is made from industrial aluminum treated by smelting in an electric furnace. The crystal form is a-Al2O3 micro crystals. Fused Al2O3 hollow ball can be made into various shapes with the highest temperature 1800 ℃, which is of high mechanical strength, and the volume density is only one-half of corundum products.
Sizea for Fused Al2O3 hollow ball:
Mixed-level ball: 0.2-5mm
Graded ball diameters: 0.06-0.1mm, 0.1-0.2mm, 0.2-1mm, 1-2mm, 2-3mm, 1-3mm, 3-4mm, 3-5mm
Chemical index for Fused Al2O3 hollow ball | |||||||||
size | Al2O3 | Fe2O3 | SiO2 | Na2O | MgO | K2O | Cao | ||
0.2-5mm | ≥99% | ≤0.15% | ≤0.3% | ≤0.5% | ≤0.1% | ≤0.1% | ≤0.1% | ||
Physical index for Fused Al2O3 hollow ball | |||||||||
Bulk density | refractoriness | Shape | |||||||
0.5-1g/cm3 | 1800 degree centigrade | White hollow ball | |||||||
Bulk density(g/cm3)
| Item | 5-4mm | 4-3mm | 3-2mm | 2-1mm | 1-0.5mm | 3-0.2mm | 0.5-0.2mm |
| g/cm3 | 0.45 | 0.55 | 0.65 | 0.75 | 0.85 | 0.85 | 0.95 |
Fused Al2O3 hollow ball 1-3mm:
Our factory:
Application:
fused Al2O3 hollow ball are widely used in high temperature furnace and ultra high temperature furnaces such as the petrochemical industry gasifier reactor, carbon black industry, metallurgical industry and other high-temperature induction furnaces, etc.
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