Title:
STEEL-SHEET WALKING AMOUNT MEASUREMENT DEVICE, STEEL-SHEET WALKING AMOUNT MEASUREMENT METHOD, HOT-ROLLING EQUIPMENT FOR HOT-ROLLED STEEL STRIP, AND HOT-ROLLING METHOD FOR HOT-ROLLED STEEL STRIP
Document Type and Number:
WIPO Patent Application WO/2022/163177
Kind Code:
A1
Abstract:
Provided are: a steel-sheet walking amount measurement device with which a steel-sheet walking amount can be accurately measured when the steel-sheet walking amount is measured during rolling; a walking amount measurement method; hot-rolling equipment; and a hot-rolling method. If a measurement reliability determination unit (64) has determined that a current drive-side edge site zds (N) and a current work-side edge site zws (N) both have high reliability, a walking amount computation device (6) of a walking amount measurement device (4) calculates the walking amount of a steel sheet (10) using the current drive-side edge site zds (N) and the current work-side edge site zws (N). If only one of the current drive-side edge site zds (N) and the current work-side edge site zws (N) has been determined to have high reliability, another one-sided edge site is calculated by interpolation using a pixel count W from a sheet width updating unit (65), with the current drive-side edge site zds (N) or the current work-side edge site zws (N), whichever has high reliability, being employed as a reference.
Inventors:
OGASAHARA TOMOYOSHI (JP)
GOTO HIROTO (JP)
YAMAGUCHI HIDETO (JP)
MATSUBARA YUKIHIRO (JP)
KEMMOCHI MITSUTOSHI (JP)
GOTO HIROTO (JP)
YAMAGUCHI HIDETO (JP)
MATSUBARA YUKIHIRO (JP)
KEMMOCHI MITSUTOSHI (JP)
Application Number:
PCT/JP2021/045855
Publication Date:
August 04, 2022
Filing Date:
December 13, 2021
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
B21C51/00; B21B37/58; B21B37/68; B21B38/00
Foreign References:
| JP6801833B1 | 2020-12-16 | |||
| JP2004141956A | 2004-05-20 | |||
| JPS63225107A | 1988-09-20 |
Attorney, Agent or Firm:
TANAKA Hidetetsu et al. (JP)
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