Title:
ROLLING MILL
Document Type and Number:
WIPO Patent Application WO/2008/001466
Kind Code:
A1
Abstract:
A rolling mill in which dynamic rigidity in the horizontal direction during rolling is
increased to suppress vibration, making the rolling highly efficient. The rolling
mill has a housing (11), a pair of upper and lower work roll chucks (12, 13) supported
by the housing (11), a pair of upper and lower work rolls (14, 15) supported by the
upper and lower work roll chucks (12, 13) and facing each other, hydraulic cylinders
(25) for pressing the work roll chucks (12, 13) from the direction horizontal
to and crossing perpendicular to the axes of the work rolls, hydraulic pressure
supply and discharge pipes (56, 57) connected to the head sides and the rod sides
of the hydraulic cylinders (25) and supplying and discharging oil, and restriction
sections (58, 59) formed in the hydraulic pressure supply and discharge pipes
(56, 57). During the rolling, the oil is supplied to both the head sides and the
rod sides of the hydraulic cylinders (25) through the hydraulic pressure supply
and discharge pipes (56, 57).
Inventors:
HAYASHI KANJI (JP)
SAKO AKIRA (JP)
SUETA SHIGEKI (JP)
FURUMOTO HIDEAKI (JP)
KANEMORI SHINYA (JP)
SAKO AKIRA (JP)
SUETA SHIGEKI (JP)
FURUMOTO HIDEAKI (JP)
KANEMORI SHINYA (JP)
Application Number:
PCT/JP2006/313124
Publication Date:
January 03, 2008
Filing Date:
June 30, 2006
Export Citation:
Assignee:
MITSUBISHI HITACHI METALS (JP)
HAYASHI KANJI (JP)
SAKO AKIRA (JP)
SUETA SHIGEKI (JP)
FURUMOTO HIDEAKI (JP)
KANEMORI SHINYA (JP)
HAYASHI KANJI (JP)
SAKO AKIRA (JP)
SUETA SHIGEKI (JP)
FURUMOTO HIDEAKI (JP)
KANEMORI SHINYA (JP)
International Classes:
B21B31/02
Foreign References:
| JP2002096107A | 2002-04-02 | |||
| JPH08174009A | 1996-07-09 |
Attorney, Agent or Firm:
MITSUISHI, Toshiro et al. (9-15 Akasaka 1-chome, Minato-ku Tokyo, JP)
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