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Product Description
Reinforced materials of discharge hole ensure small reaming for the longtime use and good erosion-resistant ability.
Imported composite ZrO2-C materials in slag line greatly ensure corrosion resistance of slag line section.
Composite non-carbon liner meets special requirements of low carbon steel and high purity steel productions and prevent adhesion inside the nozzle.
Composite nitride liner will not be wet with molten steel thus having high corrosion resistance.
High-strength oxidation resistant coating prevent the material from oxidizing ,thus prolonging its life with the formation of liquid membrane on the nozzle during 600℃~ 1200℃.
Al2O3-C body materials have good thermal shock stability and exfoliation resistance.
Al2O3-C submerged nozzle without preheating can be used in emergency.
Professional structure design can optimize flow field in mould, thus improving quality of cast slab.
Standard: YB/T007-2003 Alumina Carbon Refractory Products for Continuous casting
Items | Body | Slag line | Liner | |
Al2O3 | ≥50.0 | 76.0 | (CaO)≥20.0 | |
ZrO2 | ≥75.0 | (MgO) ≥23.0 | ≥45.0 | |
C+SiC | ≥25.0 | ≥10.0 | - | ≥20.0 |
BD, g/cm3 | ≥2.45 | ≥3.50 | ≥2.8 | ≥2.8 |
AP, % | ≤18.0 | ≤17.0 | ≤25.0 | ≤20.0 |
CCS, MPa | ≥20.0 | ≥19.0 | ≥20.0 | ≥20.0 |
MOR, MPa | ≥6.0 | ≥5.0 | ≥6.0 | ≥6.0 |
Types
Submerged Nozzle for Beam Blank
Submerged Nozzle for billet
Submerged Nozzle for Slab
Submerged Nozzle for Slab
Submerged Nozzle for Thin Slab
