Cold Model Experiments of Gas Removal from Molten Metal by an Irradiation of Ultrasonic Waves

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著者

    • KAMATA Chizuna
    • Graduate Student, Department of Materials Science and Engineering, Waseda University
    • ITO Kimihisa
    • Department of Materials Science and Engineering, Waseda University

抄録

Application of the technique of removing dissolved gas by irradiating of ultrasonic waves on a molten metal system was discussed. In water model experiments, dissolved gas can be removed by "rectified diffusion" and the apparent removal rate constant increases linearly with the input power. The addition of non-wettable particles to the bath enhances the degassing. A mathematical model of rectified diffusion suggests that it would be difficult to apply the technique to the gas removal in practical steelmaking processes, where the gas concentration must be controlled to a ppm level. However, since Al<sub>2</sub>O<sub>3</sub> and SiO<sub>2</sub> are non-wettable to molten iron, it is promising that small inclusions can be removed by the bubbles generated by ultrasonic waves in a molten iron system.

収録刊行物

  • ISIJ international  

    ISIJ international 37(1), 9-15, 1997-01-15 

    The Iron and Steel Institute of Japan

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各種コード

  • NII論文ID(NAID)
    10002454617
  • NII書誌ID(NCID)
    AA10680712
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    09151559
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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