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NUMERICAL SIMULATION OF LIQUID STEEL SUPERHEAT REMOVAL IN SLAB CONTINUOUS CASTING MOLD
Alternative TitleNUMERICAL SIMULATION OF LIQUID STEEL SUPERHEAT REMOVAL IN SLAB CONTINUOUS CASTING MOLD
Yu Haiqi; Zhu Miaoyong
2009
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume45Issue:4Pages:476-484
AbstractMathematical model was developed to study the 3D temperature distribution and heat transfer from superheated liquid steel to the inside of the solidifying shell in the slab continuous casting mold. The effects of some factors, such as submergence depth and port angle of submerged entry nozzle (SEN), mold width, casting speed, superheat temperature, argon gas injection, electromagnetic brake (EMBr) and also including the argon gas flow rate and current intensity etc., on the temperature distribution and heat transfer of superheated liquid steel in the mold were analyzed. The results indicate that the maximum heat input to the solidifying shell forefront occurs near the impingement point of liquid steel on the narrow face of mold, and the most superheat of superheated liquid steel is dissipated near the impingement zone. Heat flux of superheated liquid steel delivered to the shell surface increases in direct proportion to the casting speed and superheat temperature, respectively. Argon gas injection leads to a substantial increase in superheat flux to the impingement zone of narrow face and the upper region of wide face. EMBr is beneficial in increasing the temperature of upper region of the mold, but has no obvious effect on the heat flux distribution. The double action of argon gas injection and EMBr also produces an increase in heat flux to the upper region of wide face, which has no visible influence for the heat flux distribution of impingement zone.
KeywordHEAT-TRANSFER FLUID-FLOW SOLUTE TRANSPORT ARGON GAS CASTER slab mold temperature heat transfer argon gas injection electromagnetic brake numerical simulation
Indexed ByCSCD
Language英语
Funding Project[National Natural Science Foundation of China and Bao Steel Co.] ; [Program for New Century Excellent Talents in University]
CSCD IDCSCD:3548037
Citation statistics
Cited Times:1[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/156821
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. NUMERICAL SIMULATION OF LIQUID STEEL SUPERHEAT REMOVAL IN SLAB CONTINUOUS CASTING MOLD[J]. ACTA METALLURGICA SINICA,2009,45(4):476-484.
APA Yu Haiqi,&Zhu Miaoyong.(2009).NUMERICAL SIMULATION OF LIQUID STEEL SUPERHEAT REMOVAL IN SLAB CONTINUOUS CASTING MOLD.ACTA METALLURGICA SINICA,45(4),476-484.
MLA Yu Haiqi,et al."NUMERICAL SIMULATION OF LIQUID STEEL SUPERHEAT REMOVAL IN SLAB CONTINUOUS CASTING MOLD".ACTA METALLURGICA SINICA 45.4(2009):476-484.
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