Introduction
Mixer furnaces store and homogenize hot metal while maintaining temperature, playing a critical role in coordinating ironmaking and steelmaking production. Working linings are subjected to severe thermal shock from heat radiation, mechanical impact during charging, and chemical attack from molten slag and iron. These Al₂O₃-SiC-C bricks are manufactured from high-quality bauxite, corundum, silicon carbide and flake graphite through high-pressure molding and high-temperature sintering. Available in JH-ASCC65, JH-ASCC70 and JH-AMC-Y grades, with the AMC-Y grade specifically formulated for slag line zones.
Key Advantages
01
Excellent Thermal Shock Resistance
Withstands rapid temperature fluctuations during hot metal charging and tapping, preventing cracking and spalling under cyclic thermal stress.
02
Strong Slag & Erosion Resistance
Resists chemical attack from molten slag and iron with low slag penetration, ensuring extended service life in slag line zones.
03
High Mechanical Strength
Cold crushing strength reaches 45–50 MPa at 200℃ and 60 MPa at 1450℃, delivering reliable performance under severe mechanical loads and impact.
Specification
| Item | JH-ASCC65 | JH-ASCC70 | JH-AMC-Y | |
| Chemical Composition (%); ≥ | Al₂O₃ | 65 | 70 | 75 |
| SiC+C | 15 | 15 | 5 | |
| MgO | − | − | 3 | |
| Bulk Density (g/cm³); ≥ | 200℃×24h | 2.85 | 2.95 | 2.95 |
| 1450℃×3h | 2.8 | 2.9 | 2.9 | |
| Linear Change Rate (%) | 1450℃×3h | 0~1 | 0~1 | 0~1 |
| Cold Crushing Strength (MPa); ≥ | 200℃×24h | 45 | 50 | 50 |
| 1450℃×3h | 60 | 60 | 60 | |
| Modulus of Rupture (MPa); ≥ | 200℃×24h | 8 | 8 | 8 |
| 1450℃×3h | 15 | 15 | 15 | |
| Remarks | − | − | Slag Line Area | |
