Alumina hollow ball is a new kind of high temperature heat insulation material, it is placed in the industrial alumina content of more than 98% in the arc furnace high temperature melting, using compressed air to blow liquid alumina into air ball alumina hollow ball.
Alumina hollow ball can be made into various shapes of products, the highest temperature of 1800 degrees Celsius, the mechanical strength of the products is high, several times of the general light products, and the volume density is only half of corundum products.
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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