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Modelling of Pressure Distribution inside the SEN in a Stopper‐rod controlled System
Author(s) -
Savolainen J.,
Rousu A.,
Fabritius T.,
Mattila O.,
Sulasalmi P.
Publication year - 2010
Publication title -
steel research international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.603
H-Index - 49
eISSN - 1869-344X
pISSN - 1611-3683
DOI - 10.1002/srin.201000012
Subject(s) - tundish , nozzle , continuous casting , materials science , caster , liquid steel , mechanics , pressure drop , water model , mechanical engineering , metallurgy , composite material , engineering , chemistry , physics , computational chemistry , molecular dynamics
Shrouding 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.