電磁鋳造法により製造したアルミニウム合金ビレットの鋳塊品質に及ぼす溶湯流動の影響 Effect of melt flow on the quality of aluminum alloy billets fabricated by electromagnetic casting

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The influence of casting rate and pouring method on the formation of columner crystals and floting crystals were invest igated for the purpose of improving the quality of aluminum alloy ingots. Columnar crystals are created in the center of the billet ingot when casting is performed with a slow casting rate without the reduction of the melt-flow rate. But the reduction of melt-flow rate has a possibility of making the structure equiaxial. Moreover, floating crystals crystallized inside the ingots, move from the center of the ingot to the surface, and coarsen. Its amount increases with an increase of casting rate without the reduction of melt-flow rate. Nucleation and growth of floating crystals largely depend on the flow rate of molten metal rather than on the electromagnetic stirring rate. Floating crystals are, therefore not crystallized provided melt flow in the meniscus is restricted by the reduction of melt-flow rate from the spout.

収録刊行物

  • 軽金属

    軽金属 47(1), 10-14, 1997-01-30

    The Japan Institute of Light Metals

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各種コード

  • NII論文ID(NAID)
    10003794814
  • NII書誌ID(NCID)
    AN00069773
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    04515994
  • NDL 記事登録ID
    4118758
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-284
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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