Inclusion Motion and Removal in a Steel Slab Continuous Casting Strand under EMBr

Abstract

In current study, a 3-D mathematical model is built to investigate the effect of a local type ElectroMagnetic Brake (EMBr) on the motion of bubbles and inclusions in slab continuous casting strands. the results indicate that more bubbles, especially >2 0 mm bubbles, escape from the top surface- between the mold Submerged Entry Nozzle (SEN) and 1/4 width for the case with a 0 39 T EMBr This may push the top slag away and create an open "eye" on the top slag Small hubbies (≤lmm) tend to escape from one side of wide face no matter with or without EMBr, which is induced by the swirl flow from the SEN outport. EMBr has a little effect on the overall removal fraction of inclusions: however, it affects the local distribution of inclusion in the slab with EMBr. more inclusions accumulate the region just below the surface, thus a worse subsurface quality, while the inner quality of the slab is better than that without EMBr.

Department(s)

Materials Science and Engineering

Keywords and Phrases

Bubbles; Electromagnetic brake (EMBr); Inclusions; Slab continuous casting

International Standard Book Number (ISBN)

978-087339750-6

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2024 The Minerals, Metals & Materials Society, All rights reserved.

Publication Date

28 May 2010

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