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Ladle self-flowing castable
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Ladle self-flowing castable

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.
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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:

Corrosion resistance, peeling resistance and good construction performance.

Good thermal shock stability and strength, and has micro-expansion to reduce the gap and avoid the penetration of molten steel.

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 ≥ 2.8 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

 

Ladle self-flowing castable

 

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