Title:
ROLLING MILL AND ROLLING METHOD FOR METAL SHEET MATERIAL
Document Type and Number:
WIPO Patent Application WO/2012/128019
Kind Code:
A1
Abstract:
The present invention provides a rolling mill for metal sheet material comprising: a housing that accommodates roll chocks, has a pair of first projecting blocks projecting inward toward each other and bearing the force in the direction of rolling that operates on a lower work roll, and forms a housing window that bears the force in the direction of rolling that operates on an upper work roll; a first hydraulic cylinder provided on the pair of first projecting blocks and having a first piston rod that imposes a bending increasing force on the upper work roll; a second hydraulic cylinder provided on the pair of first projecting blocks and having a second piston rod that imposes a bending increasing force on the lower work roll; a third hydraulic cylinder provided on an upper reinforcing roll chock and having a third piston rod that imposes a bending decreasing force on the upper work roll, or makes the upper work roll contact an upper reinforcing roll and generates a roll balance force; and a fourth hydraulic cylinder having a fourth piston rod that imposes a bending decreasing force on the lower work roll.
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Inventors:
IWAKI TAISUKE (JP)
NISHIYAMA YASUHIRO (JP)
WAKATSUKI KUNIHIKO (JP)
HIGO TSUYOSHI (JP)
OGAWA SHIGERU (JP)
NISHIYAMA YASUHIRO (JP)
WAKATSUKI KUNIHIKO (JP)
HIGO TSUYOSHI (JP)
OGAWA SHIGERU (JP)
Application Number:
PCT/JP2012/055515
Publication Date:
September 27, 2012
Filing Date:
March 05, 2012
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
IWAKI TAISUKE (JP)
NISHIYAMA YASUHIRO (JP)
WAKATSUKI KUNIHIKO (JP)
HIGO TSUYOSHI (JP)
OGAWA SHIGERU (JP)
IWAKI TAISUKE (JP)
NISHIYAMA YASUHIRO (JP)
WAKATSUKI KUNIHIKO (JP)
HIGO TSUYOSHI (JP)
OGAWA SHIGERU (JP)
International Classes:
B21B13/14; B21B29/00; B21B31/20; B21B37/38
Domestic Patent References:
| WO2011122069A1 | 2011-10-06 | |||
| WO2011122070A1 | 2011-10-06 |
Foreign References:
| JPS62142403U | 1987-09-08 | |||
| JPH02280910A | 1990-11-16 | |||
| JPS5942106A | 1984-03-08 | |||
| JPH08215730A | 1996-08-27 | |||
| JPS63199006A | 1988-08-17 | |||
| JPH11267728A | 1999-10-05 | |||
| JPH0687011A | 1994-03-29 | |||
| JPS62220205A | 1987-09-28 | |||
| JPH06198307A | 1994-07-19 | |||
| JPH0452014A | 1992-02-20 |
Other References:
See also references of EP 2626149A4
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
Masatake Shiga (JP)
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Claims: