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Material: | High Alumina Castable Ladle Self-flowing Castable | Bulk Density: | ≥2.4 |
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Al2O3 Contention (%): | ≥65 | Size: | Customized |
Performance: | Corrosion Resistance, Peeling Resistance And Good Construction Performance. | Application: | Ladle Bottom And Permanent Layer |
High Light: | castable refractory material,low cement castable |
High alumina castable ladle self-flowing castable good construction performance
Corundum self-flowing castables are mainly used for the bottom of ladle, with fused white corundum as the main material, suitable micro-powder and dosage, the amount of cement is controlled at 3-4%, a small amount of anti-explosive agent and dispersant are added.
The corundum ladle self-flowing castable can meet the requirements of ladle masonry and use.
It has good performance:
1.Corrosion resistance, peeling resistance and good construction performance.
2.Good thermal shock stability and strength, and has micro-expansion to reduce the gap and avoid the penetration of molten steel.
3.Reduce the labor intensity of workers and unplanned stoppages, and increase the service life of ladle.
Item | Corundum | High alumina | Alumina -spinel | Slag line | ||||
Chemical composition | Al2O3 ≥ | 90 | 75 | 65 | 65 | 70 | 30 | |
Al2O3+MgO ≥ | 10 | 8 | 50 | 86 | ||||
Cr2O3 ≥ | 2 | |||||||
SiO2 ≤ | 6 | |||||||
Bulk density (g/cm³) | 110℃×24h ≥ | 2.80 | 2.6 | 2.4 | 2.6 | 2.7 | 2.7 | 2.8 |
Cold crushing strength (MPa) | 110℃×24h ≥ | 70 | 50 | 30 | 30 | 35 | 25 | 20 |
1100℃×3h ≥ | 80 | 60 | ||||||
1500℃×3h ≥ | 50 | 45 | 50 | 40 | ||||
1550℃×3h ≥ | 35 | |||||||
Bending strength (MPa) | 110℃×24h ≥ | 8 | 6 | 6 | 6 | 7 | 5 | |
1100℃×3h ≥ | 10 | 8 | ||||||
1500℃×3h ≥ | 10 | |||||||
Permanent linear change | 1100℃×3h(%) | ±0.5 | ±0.5 | 0 ~ +1.0 | 0 ~ +1.0 | 0 ~ +1.2 | ||
1500℃×3h(%) | 0 ~ ±1.0 | |||||||
1550℃×3h(%) | ±1.0 | |||||||
Application | Ladle bottom | Ladle permanent layer | Small and medium ladle | Slag line of small and medium ladle | Slag line and sealing part of large and medium ladle |
Contact Person: Astra