Dynamic Modeling of Unsteady Bulging in Continuous Casting of Steel

Zhelin Chen, Hamed Olia, Bryan Petrus, Madeline Rembold, Joseph Bentsman, Brian Thomas

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish (US)
Title of host publicationMaterials Processing Fundamentals, 2019
EditorsAntoine Allanore, Guillaume Lambotte, Samuel Wagstaff, Jonghyun Lee
PublisherSpringer International Publishing
Pages23-35
Number of pages13
ISBN (Print)9783030057275
DOIs
StatePublished - Jan 1 2019
EventMaterials Processing Fundamentals Symposium held at the TMS Annual Meeting and Exhibition, 2019 - San Antonio, United States
Duration: Mar 10 2019Mar 14 2019

Publication series

NameMinerals, Metals and Materials Series
ISSN (Print)2367-1181
ISSN (Electronic)2367-1696

Conference

ConferenceMaterials Processing Fundamentals Symposium held at the TMS Annual Meeting and Exhibition, 2019
CountryUnited States
CitySan Antonio
Period3/10/193/14/19

Keywords

  • Continuous casting
  • Dynamic bulging model
  • Mold level fluctuation
  • Stopper rod flow model
  • Unsteady bulging

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy Engineering and Power Technology
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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  • Cite this

    Chen, Z., Olia, H., Petrus, B., Rembold, M., Bentsman, J., & Thomas, B. (2019). Dynamic Modeling of Unsteady Bulging in Continuous Casting of Steel. In A. Allanore, G. Lambotte, S. Wagstaff, & J. Lee (Eds.), Materials Processing Fundamentals, 2019 (pp. 23-35). (Minerals, Metals and Materials Series). Springer International Publishing. https://doi.org/10.1007/978-3-030-05728-2_3