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Title:
METHOD FOR DETERMINING CONFORMITY OF ROLLING MILL ROLLER, METHOD FOR ROLLING METAL STRIP, AND METHOD FOR PRODUCING COLD-ROLLED STEEL SHEET
Document Type and Number:
WIPO Patent Application WO/2023/079850
Kind Code:
A1
Abstract:
Provided is a method for determining the conformity of a rolling mill roller which makes it possible to estimate online the state of polygonal wear of a roller to be evaluated which is caused by rolling, and to prevent light chatter marks. This method for determining the conformity of a rolling mill roller includes: a rolling load data acquisition step (step S3) for acquiring rolling load operation data of a stand (F1-F5) which is the roller to be evaluated; a circumferential speed data acquisition step (step S4) for acquiring circumferential speed operation data for the roller to be evaluated; a vibration analysis step (step S5) for analyzing the vibration behavior of the stand (F1-F5) by using the rolling load operation data of the stand (F1-F5); a surface shape estimation step (step S6) for estimating the surface shape of the roller to be evaluated during the rolling of the metal strip on the basis of the analysis results about the vibration behavior of the stand (F1-F5) and the circumferential speed operation data for the roller to be evaluated; and a conformity determination step (step S7) for determining the conformity of the roller to be evaluated on the basis of the surface shape of the roller to be evaluated.

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Inventors:
BABA WATARU (JP)
GESHI YUMA (JP)
SAKAMOTO KAZUKI (JP)
TAKASHIMA YUKIO (JP)
Application Number:
PCT/JP2022/034960
Publication Date:
May 11, 2023
Filing Date:
September 20, 2022
Export Citation:
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Assignee:
JFE STEEL CORP (JP)
International Classes:
B21B38/00; B21B1/22; B21B37/00
Foreign References:
JPH05115906A1993-05-14
JPS50159453A1975-12-24
JPH105837A1998-01-13
JPH08132110A1996-05-28
Attorney, Agent or Firm:
TANAKA Hidetetsu et al. (JP)
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