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2008 Fiscal Year Final Research Report

Separating and agglomerating behavior of micro-particles in molten metal due to DC Lorentz force and the effect of convection around the particle

Research Project

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Project/Area Number 18560716
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Metal making engineering
Research InstitutionKumamoto University

Principal Investigator

KOZUKA Toshiyuki  Kumamoto University, 大学院・自然科学研究科, 准教授 (60205424)

Project Period (FY) 2006 – 2008
Keywords材料電磁プロセッシング / 介在物除去 / ローレンツ力 / 電磁アルキメデス力 / 浮力制御 / みかけの重力 / チャンネル製錬
Research Abstract

鉄鋼やアルミニウム等の金属材料の製錬・鋳造分野で重要な課題となっている非金属粒子の除去方法として, 直流電流と直流磁場の重畳印加による直流ローレンツ力を利用する方法を提案する. 本年度までで、単一の非導電性粒子に及ぼす直流ローレンツ力の浮力への寄与を, LeenovとKolinの理論により確認し, 続いて2体間の粒子の相互作用とローレンツ力の関係を見いだしていた。さらに, 実際の適用の場で問題となる対流の影響を明確にした。得られた知見を以下に示す.
(1)重力制御効果は単一粒子と同等に現れるものの, ローレンツ力の増加に伴い,非回転力成分の割合が減少した。これは2つの粒子の存在が単一粒子よりも電流の経路に大きな影響を与え、対流が生じたためであると考えられる。
(2)2つの粒子の間隔が減少すると, 非回転力成分の割合が変化し、2つの粒子が相対的に合体あるいは反発することがわかった。

  • Research Products

    (14 results)

All 2008 2007 2006

All Journal Article (8 results) (of which Peer Reviewed: 3 results) Presentation (6 results)

  • [Journal Article] Effect of Intense Magnetic Field on Electro-deposited Thin Film of CdTe2008

    • Author(s)
      小塚敏之, 下舞和智, 権・孝弘, 河原正泰
    • Journal Title

      Proc.of Intern Scientific Colloquium Modelling for Electromagnetic Processing

      Pages: 156-160

  • [Journal Article] Crystal Orientation in Electro-Deposition Process under Intense Magnetic Field2007

    • Author(s)
      小塚敏之, 下舞和智, 小山準市, 河原正泰
    • Journal Title

      Proc. of 4th international congress on HES

      Pages: 178-181

    • Peer Reviewed
  • [Journal Article] Electro-deposition Phenomena under Intense Magnetic Field2007

    • Author(s)
      小塚敏之, 下舞和智, 河原正泰
    • Journal Title

      Proc. of 2nd summer school of EPM

      Pages: 37-38

  • [Journal Article] Buoyancy Control of Non-conducting Particles by Imposing DC Lorentz Force2007

    • Author(s)
      小山準市, 小塚敏之, 河原正泰
    • Journal Title

      Proc. of 2nd summer school of EPM

      Pages: 69-70

  • [Journal Article] An Application of Intense Magnetic Field to the Production of CdTe with Large Grain Size2007

    • Author(s)
      小塚敏之, 下舞和智, 河原正
    • Journal Title

      Proc.of 3nd Asian Workshop and Summer School of EP

      Pages: 157-159

  • [Journal Article] Influence of Magnetic Field on Copper Electrodeposition2007

    • Author(s)
      櫻井翔, 小塚敏之, 下舞和智
    • Journal Title

      Proc. of 3nd Asian Workshop and Summer School of EP

      Pages: 215-218

  • [Journal Article] Effect of Fluid Flow on Behavior of Particles in Molten Metal under DC Lorentz Force2006

    • Author(s)
      小塚敏之, 稲葉栄吉, 河原正泰
    • Journal Title

      Proc. of the 5^<th> International Sympo. on Electromagnetic Processing of Materials

      Pages: 424-427

    • Peer Reviewed
  • [Journal Article] Crystal Control of CdTe Electro-Deposits by Use of Intense Magnetic Field2006

    • Author(s)
      小塚敏之, 隅田育伸, 下舞和智, 河原正泰
    • Journal Title

      Proc. of Sohn International Sympo. on Advanced Processing of Metal and Materials

      Pages: 217-222

    • Peer Reviewed
  • [Presentation] Effect of Intense Magnetic Field on Electro-deposited Thin Film of CdTe2008

    • Author(s)
      Kozuka Toshiyuki
    • Organizer
      International Scientific Colloquium Modelling for Electromagnetic Processing
    • Place of Presentation
      Hannover, Germany
    • Year and Date
      2008-10-28
  • [Presentation] An Application of Intense Magnetic Field to the Production of CdTe with Large Grain Size2007

    • Author(s)
      Kozuka Toshiyuki
    • Organizer
      Proc. of 3nd Asian Workshop and Summer School of EPM
    • Place of Presentation
      Shanghai, China
    • Year and Date
      2007-10-13
  • [Presentation] Electro-deposition Phenomena under Intense Magnetic Field2007

    • Author(s)
      Kozuka Toshiyuki
    • Organizer
      Proc. of 2nd summer school of EPM
    • Place of Presentation
      Pohang, Korea
    • Year and Date
      2007-07-11
  • [Presentation] Crystal Orientation in Electro-Deposition Process under Intense Magnetic Field2007

    • Author(s)
      Kozuka Toshiyuki
    • Organizer
      4th international congress on HES
    • Place of Presentation
      Padova, Italy
    • Year and Date
      2007-06-20
  • [Presentation] Effect of Fluid Flow on Behavior of Particles in Molten Metal under DC Lorentz Force2006

    • Author(s)
      Kozuka Toshiyuki
    • Organizer
      5th International Sympo. on Electro-magnetic Processing of Materials
    • Place of Presentation
      Sendai, Japan
    • Year and Date
      2006-10-26
  • [Presentation] Crystal Control of CdTe Electro-Deposits by Use of Intense Magnetic Field2006

    • Author(s)
      Kozuka Toshiyuki
    • Organizer
      Sohn International Sympo. on Advanced Processing of Metal and Materials
    • Place of Presentation
      San-Diego, US
    • Year and Date
      2006-08-30

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Published: 2010-06-10   Modified: 2016-04-21  

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