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Alumina Bubble
After melting through the electric arc furnace, blowing and then instantaneously cooling in air, the alumina bubble will have the characteristics of light weight, closed hole and high temperature resistance.
Product Details
After melting through the electric arc furnace, blowing and then instantaneously cooling in air, the alumina bubble will have the characteristics of light weight, closed hole and high temperature resistance. is used in the production of lightweight insulating refractories where low thermal conductivity, and high temperature properties are the prime requirements. Alumina Bubble is also used effectively for loose-fill refractories, low density, high insulation refractory castable, or concrete, or to produce ceramic bodies useful in a range of applications with temperatures up to 1800°C.
Applications
a.) Lightweight insulating refractories,. loose-fill refractories, low density, high insulation refractory castable
| Index | Guarantee Value | Typical Value | |
| Chemical Composition (%) | Al2O3 | 99%min | 99.50% |
| SiO2 | 0.2%max | 0.15% | |
| Fe2O3 | 0.10%max | 0.07% | |
| Na2O | 0.40%max | 0.29% | |
| Bulk Density(g/cm3) | 0.5—1.0 | 0.75 | |
| Crushed Ratio (%) | 10max | 8 | |
| Refractoriness(℃) | 1800 | ||
| Dimension | Φ5-0.2; 3-2; 2-0.2; 5-3mm; etc. | ||
Packing
700kg or800kg bulk bags
25kg woven bag in bulk bags
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