メルトドラッグ法によるＡｌ‐１２％Ｓｉ合金板の性状に及ぼす溶湯とロールの接触状態

DOI Web Site 被引用文献7件 参考文献14件

書誌事項

タイトル別名
  • Effect of the contacting condition between molten metal and roll on Al-12%Si alloy strip cast by melt drag method.
  • メルトドラッグ法によるAl-12%Si合金板の性状に及ぼす溶湯とロールの接触状態
  • メルトドラッグホウ ニ ヨル Al 12パーセント Si ゴウキンバン ノ セ

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抄録

In this study, it is shown that the contacting pressure between roll and melt, and roll speed are important conditions in melt drag roll casting of the aluminum alloy strip. Melt drag process was used as roll caster in this study. Contacting pressure was controlled by melt height in the nozzle. Melt height was set at 10, 20, 30 mm. Roll speed was test in the range of 20~50 m/min. Effect of the two kinds of conditions on defect on the strip surface, and heat transfer coefficient between strip and roll was investigated. Defect on the strip surface is caused when metallostatic pressure is lower than lower limit pressure. Lower limit metallostatic pressure increases with increasing roll speed. Heat transfer coefficient was calculated from solidification time and strip thickness by one dimensional finite differential method. Heat transfer coefficient decreases with casting time. Heat transfer coefficient is divided into two regions. In the first region, heat transfer coefficient decreases rapidly, and it decreases gradually in the second region. In the first region, heat transfer coefficient increased with increasing contacting pressure, but decreased with roll speed.

収録刊行物

  • 軽金属

    軽金属 48 (12), 613-617, 1998

    一般社団法人 軽金属学会

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