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Product Description
Process of Production and Application :
Fused Bubble Alumina is produced by blowing the melt of high purity Bayer process alumina in a controlled atmosphere to produce hollow spheres. Due to its low density and extremely low thermal conductivity fused alumina bubble is ideal for high alumina based insulating bricks and castables.
Technical Specification :
| Index Properties | Type 1 | Type 2 | ||
| Chemical composition (%) | AI2O3 | 98.5 min | 99min | |
| SiO2 | 0.5-1.2 | 0.3 max | ||
| Fe2O3 | 0.1 max | 0.1 max | ||
| Na2O | 0.4 max | 0.4 max | ||
| Packing Density ( g/cm2 ) | 0.5-1.0 | |||
| Damaged rate (%) | < 10 | < 10 | ||
| Refractoriness oC | 1800 | |||
| Particle Size | 5-0.2mm, 0.2-1mm, 1-3mm, 3-5mm, 0.2-0.5mm, 1-2mm, 2-3mm | |||
| Test standard | GB/T3044-89 | |||
| Packing | 20Kg / Plastic Bag | |||
| Usage | Refractories | |||
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