Submerged nozzle for thin slab with the newest technology is used for CSP, FTSC and CONTROLL caster.
Composite non-carbon liner effectively prevents Al2O3 adhering to the nozzle.
Composite low heat conductivity reduces thermal shock and assures good thermal shock stability of nozzle which can be suitable to different steel kinds.
Glaze layer can prevent decarbonization phenomenon in the course of preheating so as not to affect the use of nozzle or partial fast corrosion.
Professional structure design ensures crystallizer’s steady flow field and melting properties of crystallizer meniscus covering slag.
Standard: YB/T007-2003 Alumina Carbon Refractory Products for Continuous casting
Items | Body | Slag line | Bowl section | Liner (anti-blocking) |
Al2O3 | ≥65 | Bowl section has the same materials as the stopper. | CaO≥20.0 | |
ZrO2 | 5.0～10.0 | ≥78 | ≥45.0 | |
C+SiC | ≥20 | ≥13 | ≥20.0 | |
BD, g/cm3 | ≥2.5 | ≥3.7 | ≥2.8 | |
AP, % | ≤17 | ≤18 | ≤20.0 | |
CCS, MPa | ≥25 | ≥25 | ≥20.0 | |
MOR, MPa | ≤7 | ≤6.5 | ≥6.0 |