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AssigneeNippon Steel Corporation
InventorsHiroshi Yamashita, Shinya Hayashi, Kazunori Seki
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A facility cost and a remodeling cost can be reduced, and further, a steel sheet pile product with high dimensional accuracy is produced by suppressing occurrence of warpage of a material to be rolled during bending. There is provided a bending device which produces a steel sheet pile by performing bending on a material to be rolled after being subjected to rough rolling, intermediate rolling, and finish rolling in a hot state, in a direction of increasing a cross sectional height of the material to be rolled, the bending device including: a forming stand including a forming caliber configured by an upper caliber roll and a lower caliber roll; and a drive unit driving either the upper caliber roll or the lower caliber roll.
A bending device which produces a hat-shaped steel sheet pile by performing bending on a material to be rolled after being subjected to rough rolling, intermediate rolling, and finish rolling in a hot state, in a direction of increasing a cross sectional height of the material to be rolled, the bending device comprising:
A bending method, comprising performing bending on a material to be rolled after being subjected to rough rolling, intermediate rolling, and finish rolling in a hot state, in a direction of increasing a cross sectional height of the material to be rolled, to produce a hat-shaped steel sheet pile by changing an angle made by a portion corresponding to a flange of the hat-shaped sheet pile and a portion corresponding to a web of the hat-shaped sheet pile, wherein
Dependencies are inferred from the claim text.