Numerical simulation of continuous casting process of different steel grades considering solidification and mixing of different steel grades

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• 作者：Myunggeun Jeong (1)
  Changyoung Choi (1)
  Man Yeong Ha (1)
  Sung Jool Kim (2)
  Joong Kil Park (2)
  Kyung Shik Oh (2)
  
  1. School of Mechanical Engineering ; Pusan National University ; 2 ; Busandaehak-ro 63beon-gil ; Geumjeong-gu ; Busan ; 609-735 ; Korea
  2. Technical Research Lab. ; POSCO ; 6261 Donghaean-ro ; Nam-gu ; Pohang ; Gyeongbuk ; 709-300 ; Korea
  
• 关键词：casting ; computer simulation ; solidification ; different grade ; mixing length
• 刊名：Metals and Materials International
• 出版年：2015
• 出版时间：March 2015
• 年：2015
• 卷：21
• 期：2
• 页码：303-310
• 全文大小：580 KB
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• 刊物类别：Chemistry and Materials Science
• 刊物主题：Metallic Materials
  Operating Procedures and Materials Treatment
  
• 出版者：The Korean Institute of Metals and Materials, co-published with Springer Netherlands
• ISSN：2005-4149

文摘

The continuous casting process of different steel grades is the casting process used to produce different grades of steel without stopping the operation. In this study, an analysis model for which a solidification phenomenon, mixing phenomenon and turbulence taking place inside the mold and the bloom in a continuous casting process of different steel grades were all considered was developed. Based on the comparison between the analysis results of the analysis models for implementation of each phenomenon, an analysis model suitable for analysis of the phenomenon taking place in a continuous casting process of different steel grades was selected. A three-dimensional analysis model was completed by combining the selected optimum analysis methods, and its accuracy was verified by comparing the present numerical result with the result of the experiment. The result of the numerical analysis conducted using the selected model showed that mixing the different grades of steel was promoted and the mixing length was increased by the three-dimensional characteristics of the flow generated inside the mold. The mixing length in the bloom was predicted after the two grades of steel were mixed completely.