Bubble Alumina
Bubble Alumina is produced from high-purity alumina in an electric arc furnace. Once melted, the alumina is atomized with compressed air, which produces hollow spheres. The melting point of Bubble Alumina is approximately 2100ºC. The hollow spheres are chemically inert and have very low bulk density, extremely low thermal conductivity, high hardness, high wearresistance, and superior insulating properties.
Product parameters
SIZES AVAILABLE
mm: 0-0.2, 0.2-1, 1-3, 3-5
Other sizes available on request.
| Al2O3 | % | ≥ 95% |
| SiO2 | % | ≤ 0.2% |
| Fe2O3 | % | ≤ 0.1% |
| Na2O | % | ≤ 0.4% |
| Packing density | g/cm3 | 0.5-1.0 g/cm3 |
| Damaged rate | % | ≤ 15% |
| Refractoriness | °C | 1800°C |
| Particle size | mm | Ф mm: 0-0.2, 0.2-1, 1-3, 3-5 |
| Color | / | White |
| Packing | / | Jumbo bag,25kg/plastic bag, or as required |
APPLICATIONS
Production of Bubble Alumina Bricks
Production of Light Weight Refractories
Used in Grinding Wheel Production as Refractory Support
Loose Fill Refractory Products
Product consultation
