TY - GEN
T1 - Dynamic Modeling of Unsteady Bulging in Continuous Casting of Steel
AU - Chen, Zhelin
AU - Olia, Hamed
AU - Petrus, Bryan
AU - Rembold, Madeline
AU - Bentsman, Joseph
AU - Thomas, Brian
N1 - Acknowledgements This work was supported by NSF Grant #1300907, NSF INTERN DCL #1747876, and the Continuous Casting Center at the Colorado School of Mines. Special thanks are extended to Nucor Steel Decatur for providing caster data and casting conditions.
PY - 2019
Y1 - 2019
N2 - Mold level fluctuations caused by unsteady bulging of the solidifying shell affect the quality of the steel and stable operation of the continuous steel casting process. A dynamic bulging model, which captures the behavior of the 2-D longitudinal domain through interpolation of multiple 1-D moving slices, is used to calculate the transient bulging profile, volume changes caused by unsteady bulging, and the accompanying level fluctuations in the mold. The liquid steel flow rate through the SEN into the tundish is calculated with a stopper-position-based model. These two models are combined to investigate mold level fluctuations in a thin-slab caster under real casting conditions. The model is verified by comparing the simulation results with transient measurements in a commercial thin-slab caster.
AB - Mold level fluctuations caused by unsteady bulging of the solidifying shell affect the quality of the steel and stable operation of the continuous steel casting process. A dynamic bulging model, which captures the behavior of the 2-D longitudinal domain through interpolation of multiple 1-D moving slices, is used to calculate the transient bulging profile, volume changes caused by unsteady bulging, and the accompanying level fluctuations in the mold. The liquid steel flow rate through the SEN into the tundish is calculated with a stopper-position-based model. These two models are combined to investigate mold level fluctuations in a thin-slab caster under real casting conditions. The model is verified by comparing the simulation results with transient measurements in a commercial thin-slab caster.
KW - Continuous casting
KW - Dynamic bulging model
KW - Mold level fluctuation
KW - Stopper rod flow model
KW - Unsteady bulging
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U2 - 10.1007/978-3-030-05728-2_3
DO - 10.1007/978-3-030-05728-2_3
M3 - Conference contribution
AN - SCOPUS:85064770401
SN - 9783030057275
T3 - Minerals, Metals and Materials Series
SP - 23
EP - 35
BT - Materials Processing Fundamentals, 2019
A2 - Allanore, Antoine
A2 - Lambotte, Guillaume
A2 - Wagstaff, Samuel
A2 - Lee, Jonghyun
PB - Springer
T2 - Materials Processing Fundamentals Symposium held at the TMS Annual Meeting and Exhibition, 2019
Y2 - 10 March 2019 through 14 March 2019
ER -