Behavior of Lubrication and Heat Transfer in Mold at High Speed Continuous Casting

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  • KANAZAWA Takashi
    Plant Engineering Division, Sumitomo Metal Industries, Ltd.
  • HIRAKI Sei
    Corporate Research & Development Laboratories, Sumitomo Metal Industries, Ltd.
  • KAWAMOTO Masayuki
    Corporate Research & Development Laboratories, Sumitomo Metal Industries, Ltd.
  • NAKAI Ken
    Auditing Department, Sumitomo Metal Industries, Ltd.
  • HANAZAKI Kazuharu
    Corporate Research & Development Laboratories, Sumitomo Metal Industries, Ltd.
  • MURAKAMI Toshihiko
    Corporate Research & Development Laboratories, Sumitomo Metal Industries, Ltd.

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Other Title
  • 高速連続鋳造時の鋳型内潤滑・伝熱挙動
  • コウソク レンゾク チュウゾウジ ノ イガタナイ ジュンカツ デンネツ キョド

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Abstract

In order to cast high quality slabs with high productivity, high speed casting technology has been investigated with a pilot continuous casting machine capable of casting 50 to 100 tons of molten steel. The results can be summarized as follows;<BR>(1) High casting speed of 5.0 m/min for low carbon steel has been achieved with low viscosity powder. The powder consumption is small, from 0.1 to 0.2 kg/m2, but stable casting has been conducted.<BR>(2) Longitudinal crack has been occured even if for low carbon steel at up to 4.0 m/min. When the heat flux in mold increased critical value, longitudinal crack occured.<BR>(3) The control of the heat fluxes through the mold can be achieved by using the powder with appropriate properties.

Journal

  • Tetsu-to-Hagane

    Tetsu-to-Hagane 83 (11), 701-706, 1997

    The Iron and Steel Institute of Japan

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