Keywords and Phrases
"To improve the efficiency of the continuous casting process and the quality of its products, this dissertation mainly investigated fluid flow related phenomena and inclusion motion in continuous casting. Mathematical simulation was performed for this purpose. Both a slab caster and a billet caster were investigated. In the study of the slab caster, the application of electromagnetic brake field on the slab mold was evaluated. The results indicated that the magnetic force decelerated the high speed steel jet, stabilized the top fluctuation, and prevented the bias flow inside the mold. The other study of this slab caster involved the fluid flow features during the transient casting process. It included casting start, casting speed variation, and temperature fluctuation. Especially for the casting start, the entire process was simulated using the volume of fluid multi phase model and dynamic mesh method. The results indicated the serious entrainment of air during the filling process and large fluctuations in the top surface level at the beginning of dummy bar moving. In the billet caster study, billet samples were collected from an industrial trial. The features of the nonmetallic inclusions were characterized by automated particle analysis and the size and spatial distribution of nonmetallic inclusions were determined. Mathematical models were developed to predict the entrapment locations of inclusions in the solidifying shell and compared to the industrial results. The distribution of inclusions predicted through mathematical modeling in the cross section of billet was in good agreement with the sample measurements"--Abstract, page iii.
Zhang, Lifeng (College teacher)
Peaslee, Kent D., 1956-2013
Materials Science and Engineering
Ph. D. in Metallurgical Engineering
Missouri University of Science and Technology. Research Board
Missouri University of Science and Technology
Journal article titles appearing in thesis/dissertation
- Fluid flow related transport phenomena in steel slab continuous casting strands under electromagnetic brake
- Study on transient fluid flow phenomena during continuous casting
- Solidification modeling and inclusion entrapment during continuous casting
- Inclusion observation in steel samples during billet continuous casting
xii, 155 pages
© 2010 Yufeng Wang, All rights reserved.
Dissertation - Restricted Access
Continuous casting -- Mathematical models
Unsteady flow (Fluid dynamics)
Print OCLC #
Electronic OCLC #
Link to Catalog Record
Electronic access to the full-text of this document is restricted to Missouri S&T users. Otherwise, request this publication directly from Missouri S&T Library or contact your local library.http://merlin.lib.umsystem.edu/record=b8333616~S5
Wang, Yufeng, "Fluid flow related phenomena and inclusion motion in continuous casting strands" (2010). Doctoral Dissertations. 1788.
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