Title:
METHOD FOR DETECTING ABNORMAL VIBRATION IN ROLLING MILL, ABNORMALITY DETECTION DEVICE, ROLLING METHOD, AND METHOD FOR MANUFACTURING METAL STRIP
Document Type and Number:
WIPO Patent Application WO/2022/209294
Kind Code:
A1
Abstract:
The present invention prevents erroneous detection due to noise, etc., generated by equipment on the periphery of a rolling mill, and extracts and evaluates abnormal vibration with good precision. This method for detecting abnormal vibration in a rolling mill comprises a collecting step for collecting rolling mill vibration data, a frequency analysis step for performing frequency analysis of the vibration data and generating first analysis data indicating the vibration intensity for each frequency, a data conversion step for converting the first analysis data to second analysis data indicating the vibration intensity for each pitch on the basis of a rolling speed, and a map generating step for generating a vibration map in which a plurality of second analysis data are arranged along a time series.
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Inventors:
BABA WATARU (JP)
YAJIMA MASAHIDE (JP)
HIRATA TAKEHIDE (JP)
TAKASHIMA YUKIO (JP)
YAJIMA MASAHIDE (JP)
HIRATA TAKEHIDE (JP)
TAKASHIMA YUKIO (JP)
Application Number:
PCT/JP2022/004544
Publication Date:
October 06, 2022
Filing Date:
February 04, 2022
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
B21C51/00; B21B38/00; G01H17/00; G01M99/00
Foreign References:
| JP2020104133A | 2020-07-09 | |||
| JP2013111614A | 2013-06-10 | |||
| KR20110070537A | 2011-06-24 | |||
| JPH08108205A | 1996-04-30 | |||
| JP2016153138A | 2016-08-25 | |||
| JP2016002582A | 2016-01-12 |
Attorney, Agent or Firm:
KUMASAKA Akira et al. (JP)
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