Title:
STATE EVALUATION METHOD AND STATE EVALUATION DEVICE OF ROLLING DEVICE, AND ROLLING EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2021/024447
Kind Code:
A1
Abstract:
This state evaluation method of a rolling device is a method for evaluating the growth tendency of N-polygonization in which the rolling rolls of the rolling device are unevenly worn into an N-polygon, the method comprising: a vibration data acquisition step for, during rolling at a rotation speed fr of the rolling roll, acquiring vibration data indicating the vibration of the rolling roll in each of a plurality of sampling periods; an amplitude acquisition step for performing frequency analysis on each of the vibration data acquired during the plurality of sampling periods and acquiring the amplitude of the vibration at the frequency corresponding to the N-polygon; and an evaluation step for evaluating the growth tendency of the N-polygonization of the rolling roll during rolling at the rotation speed fr, on the basis of the temporal change of the amplitude acquired for each of the vibration data.
Inventors:
ISHIKAWA EIJI (JP)
KAGEHIRA KIYOSHI (JP)
SHIMOGAMA HIRONORI (JP)
YOSHIKAWA MASASHI (JP)
KAGEHIRA KIYOSHI (JP)
SHIMOGAMA HIRONORI (JP)
YOSHIKAWA MASASHI (JP)
Application Number:
PCT/JP2019/031332
Publication Date:
February 11, 2021
Filing Date:
August 08, 2019
Export Citation:
Assignee:
PRIMETALS TECH JAPAN LTD (JP)
International Classes:
B21C51/00; B21B37/46; G01H17/00
Foreign References:
| JP2005234952A | 2005-09-02 | |||
| JP2001340905A | 2001-12-11 |
Other References:
SUEOKA ATSUO ET AL.: "Polygonal wear of work rools in a hot leveler of steel making machine", TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS SERIES C, vol. 66, no. 651, November 2000 (2000-11-01), pages 3583 - 3590
MATSUZAKI KENICHIRO ET AL.: "Polygonal wear of work rolls in a hot leveler of steel making machine (3rd report, a countermeasure by using dynamic absorbers)", TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS SERIES C, vol. 71, no. 704, April 2005 (2005-04-01), pages 1123 - 1130
MATSUZAKI KENICHIRO ET AL.: "Polygonal wear of work rolls in a hot leveler of steel making machine (3rd report, a countermeasure by using dynamic absorbers)", TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS SERIES C, vol. 71, no. 704, April 2005 (2005-04-01), pages 1123 - 1130
Attorney, Agent or Firm:
SEISHIN IP PATENT FIRM, P.C. (JP)
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