High-density, high-strength, anti-erosion ability; High melting loss resistance, strong permeability of molten steel resistance
Magnesia ramming mix are made from magnesia and synthetic magnesia-dolomite clinkerwith good abrasion-resistance.
Ramming mix for EAF bottom
Name | Item | Chemical compositon | Size grain | Service temp. | Application | |||
MgO≥ | SiO2≤ | F2O3≤ | CaO≤ | |||||
Ramming mix for EAF bottom | TRDA-1 | 75.0 | 2.5 | 5.0 | 15.0 | 0-5 | 1750°C | Cool ramming for EAF bottom DC-EAF slope |
TRDA-2 | 83.0 | 2.5 | 8.0 | 7.0 | 0-5 | 1750°C | ||
TRDA-3 | 85.0 | 2.0 | 7.0 | 6.0 | 0-8 | 1750°C | ||
TRDA-4 | 90.0 | 1.5 | 6.0 | 5.0 | 0-8 | 1750°C | ||
electric furnace slope ramming mixes
Item | Brand/Index | |
TRD-1 | TRD-2 | |
MgO(%)≥ | 81 | 84 |
CaO(%)≤ | 6-9 | 9-12 |
SiO2(%)≤ | 1 | 1.5 |
B.D(g/cm3 ) ≥ | 3.25 | 3.25 |
CCS(MPa)≥ | 50 | 50 |
Refractoriness(°C)≥ | 1800 | 1800 |
Grain size(mm)≤ | 0-6 | 0-6 |
Ramming mix for EAF bottom/magnesia ramming material/ramming
