Abstract
AbstractShrouding tubes and submerged entry nozzles (SEN) are mainly used on steel transfer between process units of continuous casters. Molten steel flow in the SEN or shrouding tube causes a pressure drop which creates possibilities for air aspiration through refractory material. The objective of this research was to model the pressure distribution in the SEN of a continuous caster using a full scale water model. Effects of casting speed, SEN immersion depth and liquid level of tundish on the pressures at the SEN wall and centre were defined. The experiments proved that SEN immersion depth had the most remarkable effect on the pressure inside the SEN. However experiments did not show a significant effect of casting speed and tundish liquid level on the pressure inside the SEN. This research presents a simplified model for pressure distribution in SEN. The presented model agrees well with measurements at the SEN wall.
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