Title:
PRODUCTION METHOD FOR SHAPED STEEL CHANGING CROSS-SECTIONAL SHAPE IN LONGITUDINAL DIRECTION, AND ROLL MOLDING DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/056351
Kind Code:
A1
Abstract:
A roll molding device for roll molding for producing, from a sheet material, shaped steel that changes cross-sectional shape in the longitudinal direction, comprises: a first metal roll having an annular ridge section having a cross-sectional shape that changes in the peripheral direction; a second metal roll having an annular groove section having a cross-sectional shape that changes in the peripheral direction; and a drive device for the first metal roll and the second metal roll. A flank is provided across at least a transition section of the side surface of the annular ridge section of the first metal roll, such that a gap to the side surface of the annular groove section of the second metal roll widens inwards in the radial direction.
Inventors:
KUBO MASAHIRO (JP)
YOSHIDA HIROSHI (JP)
MIZUMURA MASAAKI (JP)
DAIMARU SEIICHI (JP)
YOSHIDA HIROSHI (JP)
MIZUMURA MASAAKI (JP)
DAIMARU SEIICHI (JP)
Application Number:
PCT/JP2013/078361
Publication Date:
April 23, 2015
Filing Date:
October 18, 2013
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
B21D5/08
Foreign References:
| JPS5927722A | 1984-02-14 | |||
| JP2011528289A | 2011-11-17 | |||
| JPS63295019A | 1988-12-01 | |||
| JPH0789353A | 1995-04-04 | |||
| JPH06226356A | 1994-08-16 | |||
| JP2009500180A | 2009-01-08 |
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
Aoki 篤 (JP)
Aoki 篤 (JP)
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