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Multiphase flow phenomena in a slab continuous casting mold with electromagnetic brake and argon gas injection
Alternative TitleMULTIPHASE FLOW PHENOMENA IN A SLAB CONTINUOUS CASTING MOLD WITH ELECTROMAGNETIC BRAKE AND ARGON GAS INJECTION
Yu Haiqi; Zhu Miaoyong
2008
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume44Issue:5Pages:619-625
AbstractA numerical simulation study for the multiphase phenomena of magnetic field, liquid steel flow field and inclusion behavior was described, in which the coupled effects of electromagnetic brake (EMBr) and argon gas injection in the slab continuous casting mold with high casting speed were considered. The effects of the EMBr and argon gas flow rate on the liquid steel flow and inclusion removal rate have been investigated. The results show that EMBr could slow down the flow velocity of liquid steel effectively, especially near the meniscus surface, but it had no helpful for the removal of small inclusions and the removal rate for the inclusion particles in diameter range of 5 - 50 mu m reduced from 6.7% without EMBr and argon gas injection to 3.3% with EMBr in the mold. The argon gas injection could increase the liquid steel flow up tendency of the upper circulating area and the floating up rate of inclusion particles with the size 5 - 50 mu m increased to 8.9%. The increase of argon gas flow rate resulted in a stronger eddy zone near the free surface especially near the submerged entry nozzle (SEN) and formed the secondary vortex flow easily, which impacted the fluctuation of free surface and the slag entrapment. The double action of EMBr and argon gas injection could increase the floating up rate of inclusions and the removal rate of small inclusions with the size 5 - 50 mu m increased to 12.2% and the rate for inclusions to be trapped into solidified shell was reduced to 64.4%.
KeywordMAGNETIC-FIELD APPLICATION FLUID-FLOW STEEL BEHAVIOR continuous casting of high casting speed multiphase flow electromagnetic brake (EMBr) numerical simulation
Indexed ByCSCD
Language英语
CSCD IDCSCD:3295317
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/150736
Collection中国科学院金属研究所
Affiliation中国科学院金属研究所
Recommended Citation
GB/T 7714
Yu Haiqi,Zhu Miaoyong. Multiphase flow phenomena in a slab continuous casting mold with electromagnetic brake and argon gas injection[J]. ACTA METALLURGICA SINICA,2008,44(5):619-625.
APA Yu Haiqi,&Zhu Miaoyong.(2008).Multiphase flow phenomena in a slab continuous casting mold with electromagnetic brake and argon gas injection.ACTA METALLURGICA SINICA,44(5),619-625.
MLA Yu Haiqi,et al."Multiphase flow phenomena in a slab continuous casting mold with electromagnetic brake and argon gas injection".ACTA METALLURGICA SINICA 44.5(2008):619-625.
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