Ceramic sand 200# for nozzle filler compound
Ceramic sand 200# get particle size 0.425-0.8mm. It is made from fused bauxite at 2000 centigrade high temperature. Ceramic sand get micro ball shape thus get high flowability. With high refractoriness, low thermal expansion, excellent slag resistance, ceramic beads 200#(30mesh) is suitable for raw material of steel ladle filling mess.
Ceramic sand 200# for nozzle filler compound Features:
- High refractory temperature prevents over-sintering, reducing the thickness of the starting ladle mixtures sintering layer.
- The spherical particles of ceramic sand are used to make drainage sand. The sintering layer particles are in point contact, reducing the strength of the filler mess and facilitating steel pouring.
- The spherical shape of ceramsite sand particles creates a smooth surface and offers excellent fluidity, helping to increase pouring efficiency.
- Its low thermal expansion coefficient prevents cracking of the nozzle filler mess.
- Its chemical properties are stable, preventing molten steel penetration.
Physical index:
| Refractoriness | ≥1800 °C |
| Mohs hardness | 6.5-7.5 |
| Specific gravity: | 3.4g/cm3 |
| Bulk density(LPD): | 1.95-2.05 g/cm3 |
| Color: | black brown |
| Grit shape: | spherical Ball |
| PH value | 7.3 |
| Thermal expansion coefficient | 6×10-6 /°C(20-1000°C) |
| Thermal conductivity | 0.698W/M.K(1200°C) |
| Thermal expansion ratio | 0.13%(10 min at 1000°C) |
| coefficient of angularity | ≤1.1 |
| Roundness | Min 95% |
Chemical composition:
| Item | Standard Value | Typical Value |
| Al2O3 | 70-72 | 70.65 |
| SiO2 | 10-25 | 21.87 |
| Fe2O3 | ≤3 | 2.40 |
| TiO2 | ≤3.5 | 3.32 |
| K2O | ≤1.5 | 1.20 |
| CaO | ≤0.45 | 0.28 |
| MgO | ≤0.35 | 0.32 |
| Na2O | ≤0.10 | 0.08 |
Specifications for Ceramic sand 200# for nozzle filler compound：
20-40mesh(200#),30mesh, AFS30-35
Production Process of Ceramic sand 200# for nozzle filler compound：
Package of Ceramic sand 200# for nozzle filler compound：
