Alumina hollow ball is the hollow spherical light insulating refractory made from alumina blown out of electric arc furnace through high temperature melting procedure.
Alumina hollow balls have the advantages of high strength, high stabilities to chemical and thermal circumstances.It can be resistant to acid, alkali, salt and all organic solvents.
Alumina bubble ball: Small volume density
Alumina bubble ball: Product has high mechanical strength
Alumina bubble ball: Thermal conductivity is low
Alumina bubble ball: Excellent resistance to high temperature up to 1800°C.
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Chemical index | ||||||||
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 | ||||||||
Bulk density | Refractoriness | Appearance | ||||||
0.5-1g/cm3 | 18000C | White hollow ball | ||||||
It can be customized according to your requirements | |||||||
Size | 5-4mm | 4-3mm | 3-2mm | 2-1mm | 1-0.5mm | 3-.2mm | 0.5-0.2mm |
g/cm³ | 0.45 | 0.55 | 0.65 | 0.75 | 0.85 | 0.85 | 0.95 |
1, alumina hollow ball and its products are a kind of high temperature resistant, energy-saving excellent light refractory material
2, alumina hollow ball is the ideal heat insulation furnace filling material, heat insulation energy-saving refractory material. Can be used for high temperature, super high temperature insulation filler, high temperature refractory concrete lightweight aggregate, high temperature castable.
3, alumina hollow ball in the petrochemical industry gasifier, carbon black industrial reactor, metallurgical industry induction furnace and other high temperature, ultra-high temperature furnace is widely used.
4, alumina hollow ball firebrick can be used for high temperature energy saving (> 30%) industrial furnace.
For reducing the weight of furnace, it can transform the structure, save materials and energy.
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