Numerical Simulation of Filling and Solidification Process for Low Superheat Billet Continuous Casting

Yan Juan Jin; Xiao Chao Cui; Zhu Zhang; Jin Bao Lin; Jun Ting Zhang

doi:10.4028/www.scientific.net/AMR.189-193.3899

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 189-193Numerical Simulation of Filling and Solidification...

Numerical Simulation of Filling and Solidification Process for Low Superheat Billet Continuous Casting

Abstract:

In view of the process of flowing steel before the establishment of strip casting, the low superheat forced pouring continuous casting technology, i.e. the molten steel is cooled by the rotating cooling rollers, then it is forced to flow into mold, has been put forward in order to reduce superheat of liquid steel, enhance the efficiency of heat transfer and improve inner structure of billet. The filling and solidification processes of low superheat casting and submerged entry nozzle(SEN) casting are numerical simulated using fluid dynamics software. It is gained that velocity distributing diagrams, temperature distributing diagrams and solidification distribution diagrams at different time in the filling process. Influences of twin-roller cooling pouring on velocity field, temperature field and solidification are analyzed. The results show that the superheat of liquid steel is decreased and the solidification rate of liquid steel is increased by low superheat casting of twin-roller cooling process, which is favorable to improving the quality of billet and enhancing pull speed.

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Periodical:

Advanced Materials Research (Volumes 189-193)

Pages:

3899-3903

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.189-193.3899

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Online since:

February 2011

Authors:

Yan Juan Jin, Xiao Chao Cui, Zhu Zhang, Jin Bao Lin, Jun Ting Zhang

Keywords:

Low Superheat, Solidification, Temperature Field, Twin-Roller Cooling, Velocity Field

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