厚板圧延における高精度板厚制御技術の開発

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タイトル別名
  • Development of Plate Thickness Control with High Accuracy in Plate Mill
  • アツイタ アツエン ニ オケル コウ セイド イタアツ セイギョ ギジュツ ノ

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抄録

Gauge meter model has been developed to establish plate thickness control with high accuracy in plate mill.<BR>First, stretch of mill housing has been predicted using measured mill stretch, and roll deformation model has been newly formulated by considering contact length between top and bottom work rolls in roll kissed rolling. Second, roll deformation model during plate rolling has been derived in case that pressure distributions expressed by polynomial of 4 degree work between rolled plate and work roll as well as between back up roll and work roll.<BR>Furthermore, highly accurate and flexible prediction model of thermal profile of work roll has been newly constructed by solving two dimensional heat transfer equation with the method of perturbation on thermal conductivity. Prediction model of roll wear profile model has been also reconstructed on the basis of measured rolls' wear.<BR>Gauge meter model has been applied to plate mill in Kakogawa Works, and consequently the accuracy of plate thickness has improved about 15% in comparison with the former model.

収録刊行物

  • 鉄と鋼

    鉄と鋼 79 (3), 318-325, 1993

    一般社団法人 日本鉄鋼協会

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