RH真空脱ガス装置における介在物除去機構 Separation Mechanism of Inclusion from Molten Steel during RH Treatment

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Behavior of Al<SUB>2</SUB>O<SUB>3</SUB> inclusion particles in molten steel was researched after deoxidation in RH degasser and ladle refining furnace (NK-AP).<BR>Diameter distribution of inclusion particles was measured by photo scattering method. In result, it was observed that inclusion particles were almost Al<SUB>2</SUB>O<SUB>3</SUB> spheres and logarithm of number of inclusion particles were directly proportional to diameter of inclusion particles in Al-killed molten steel.<BR>It was observed that removal rate of bigger inclusion particles were faster than that of smaller inclusion particles, and particles under 3μm were hard to be removed.<BR>Because it was cleared that inclusion particles weren't removed by floating of mono-particles, model considered turbulent coagulation of inclusion particles in stirring molten steel was constructed by Saffman-Turner model and mass balance of inclusion particles.<BR>In result, behavior of inclusion particles in molten steel was explained in both of RH degasser and NK-AP by this model.

収録刊行物

  • 鐵と鋼 : 日本鐡鋼協會々誌

    鐵と鋼 : 日本鐡鋼協會々誌 84(1), 13-18, 1998-01-01

    一般社団法人 日本鉄鋼協会

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各種コード

  • NII論文ID(NAID)
    10003280397
  • NII書誌ID(NCID)
    AN00151251
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    00211575
  • NDL 記事登録ID
    4367305
  • NDL 雑誌分類
    ZP42(科学技術--金属工学・鉱山工学--鉄鋼)
  • NDL 請求記号
    Z17-356
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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