Title:
BENDING DEVICE, STEEL SHEET PILE MANUFACTURING EQUIPMENT, BENDING METHOD, AND METHOD FOR MANUFACTURING STEEL SHEET PILE
Document Type and Number:
WIPO Patent Application WO/2021/182529
Kind Code:
A1
Abstract:
The present invention allows equipment costs and remodeling costs to be affordable, and manufactures a steel sheet pile with high dimensional accuracy by suppressing the occurrence of warping of a material to be rolled during bending. This bending device manufactures a steel sheet pile by bending a rolled material, which has been subjected to hot rough rolling, intermediate rolling, and finish rolling, in the direction in which the cross-sectional height of the rolled material increases, the bending device comprising: a molding stand including a hole mold for molding, which includes an upper grooved roll and a lower grooved roll; and a drive unit which drives the upper grooved roll or the lower grooved roll.
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Inventors:
YAMASHITA HIROSHI (JP)
HAYASHI SHINYA (JP)
SEKI KAZUNORI (JP)
HAYASHI SHINYA (JP)
SEKI KAZUNORI (JP)
Application Number:
PCT/JP2021/009618
Publication Date:
September 16, 2021
Filing Date:
March 10, 2021
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
B21B13/00; B21B1/082; B21B15/00; B21B27/02; B21B27/10; B21B45/02
Foreign References:
| JP2003230916A | 2003-08-19 | |||
| JPS4610651B1 | 1971-03-18 | |||
| JPH11156410A | 1999-06-15 | |||
| JPS63101006A | 1988-05-06 | |||
| JP2000334502A | 2000-12-05 | |||
| JP2009279732A | 2009-12-03 | |||
| JPS5043266Y1 | 1975-12-10 | |||
| JP2003230916A | 2003-08-19 |
Attorney, Agent or Firm:
HAGIWARA, Yasushi et al. (JP)
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