Mathematical Model for Removal of Inclusion in Molten Steel by Injecting Gas at Ladle Shroud

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概要

• 論文の詳細を見る

• A three-dimensional mathematical model has been developed to predict steady flow field, pressure distribution inside the shroud and efficiency of inclusion removal in tundish after argon gas injection at the shroud. Effects of the different opening of the slide gate and gas injection on velocity and pressure have been analyzed. The results show that the molten steel velocity gradually decreases and the pressure increases as the opening of the slide plane becomes larger. The velocity increases and the pressure decreases after gas injection. Bubble adhesion plays an important role in inclusion removal. Smaller bubbles and larger inclusions are favorable for inclusions removal. The larger flow rate of gas is, the greater number of bubbles generated is. Thereby the amount of removed inclusion increases. But local boiling will occur in the case of larger rate of gas, so the flow rate of gas should be strictly controlled in practice.

• 社団法人 日本鉄鋼協会の論文
• 2005-08-15

著者

• WANG Li

  Department of Biochemistry, Molecular Biology, and Cell Biology, Northwestern University

• Li Zheng

  Department Of Developmental Genetics Kumamoto University

• Wang Li

  Shougang Res. Inst. Of Technol. Beijing Chn

• Zhang Qiao

  Univ. Sci. And Technol. Beijing Beijing Chn

• ZHANG Qiao

  Metallurgical and Ecological Engineering School, University of Science and Technology Beijing

• Zhang Qiao

  Metallurgical And Ecological Engineering School University Of Science And Technology Beijing

• DENG Chen

  Information Department of Science and Technology, Central Iron and Steel Research Institute

• Deng Chen

  Information Department Of Science And Technology Central Iron And Steel Research Institute

• Wang Li

  Department Of Automotive Engineering And State Key Lab Of Automotive Safety And Energy Tsinghua Univ

• Wang Li

  Department Of Applied Physics Beijing Polytechnic University

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