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Application:
Long nozzle serves to protect the molten steel casting between casting ladle and tundish. It helps avoid oxidation of molten steel and prevent it from aborbing nitrogen from the ambient..
Advantage:
The aluminium oxide graphit protective pipe shaped by level static pressure has advantages of thermal shock resistance,anti-errosion etc.
Specification:
Index Item | Long Nozzle(Protective Tube) | ||
Body | Slag Line | ||
Chemical Composition | Al203≥% | 45 | 55 |
C ≥% | 20 | 15 | |
Apparent Porosity ≤% | 18 | 18 | |
Bulk Density ≥g/cm3 | 2.2 | 2.5 | |
Cold Crushing Strenth≥MPa | 19 | 20 | |
Cold Modulus of Rupture≥Mpa | 6.0 | 6.0 | |
Thermal Shock Resistance≥ | 5 | 5 | |
Long Nozzle Refractory