Title:
METHOD FOR SETTING ROLLING MILL, AND ROLLING MILL
Document Type and Number:
WIPO Patent Application WO/2019/172182
Kind Code:
A1
Abstract:
[Problem] To suppress meandering and camber in a material to be rolled. [Solution] A method for setting an at least four-stage rolling mill, the method including: a first step for establishing a roll-open state before draft position zero-point adjustment or the start of rolling, using at least one roll as a reference roll, measuring the motor torque or spindle torque in a roll system on a side where a draft-direction load measurement device is installed, and measuring the torque acting on a working roll in a roll system on the side where the draft-direction load measurement device is not installed, and then adjusting the position of a roll chock in the rolling direction on the basis of the motor torque or spindle torque and a draft direction load difference; and a second step subsequent to the first step, for establishing a kiss roll state, measuring the draft-direction load on a working side and a drive side in a state of rotation of two rolls, fixing the rolling direction position of the roll chock of the reference roll, moving the roll chock of a roll system on the opposite side from the reference roll at the same time or in the same direction so that the draft-direction load difference is within a predetermined allowable range, and adjusting the position of the roll chock.
Inventors:
ISHII ATSUSHI (JP)
YAMAGUCHI KAZUMA (JP)
NIKKUNI DAISUKE (JP)
YAMAGUCHI KAZUMA (JP)
NIKKUNI DAISUKE (JP)
Application Number:
PCT/JP2019/008384
Publication Date:
September 12, 2019
Filing Date:
March 04, 2019
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
B21B37/00; B21B31/02; B21B38/00; B21B38/08; B21C51/00
Domestic Patent References:
| WO2014003014A1 | 2014-01-03 |
Foreign References:
| JP2003290806A | 2003-10-14 | |||
| JP2009178754A | 2009-08-13 | |||
| JPS499107B1 | 1974-03-01 | |||
| JP2014004599A | 2014-01-16 | |||
| JPH08294713A | 1996-11-12 | |||
| JP4962334B2 | 2012-06-27 |
Other References:
See also references of EP 3763451A4
Attorney, Agent or Firm:
BRIGHTAS IP ATTORNEYS (JP)
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