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1. WO2020137014 - CHATTERING DETECTION METHOD FOR COLD ROLLING MILL, CHATTERING DETECTION DEVICE FOR COLD ROLLING MILL, COLD ROLLING METHOD, AND COLD ROLLING MILL

Publication Number WO/2020/137014
Publication Date 02.07.2020
International Application No. PCT/JP2019/034977
International Filing Date 05.09.2019
IPC
B21B 38/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
BROLLING OF METAL
38Methods or devices for measuring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
B21B 33/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
BROLLING OF METAL
33Safety devices not otherwise provided for; Breaker blocks; Devices for freeing jammed rolls
B21C 51/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
51Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B-B21F195
CPC
B21B 1/28
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
BROLLING OF METAL
1Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section
22for rolling ; plates, strips,; bands or sheets of indefinite length
24in a continuous ; or semi-continuous; process
28by cold-rolling ; , e.g. Steckel cold mill
B21B 2001/221
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
BROLLING OF METAL
1Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section
22for rolling ; plates, strips,; bands or sheets of indefinite length
221by cold-rolling
B21B 38/00
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
BROLLING OF METAL
38Methods or devices for measuring, ; detecting or monitoring; specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
B21C 51/00
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
51Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
Applicants
  • JFEスチール株式会社 JFE STEEL CORPORATION [JP]/[JP]
Inventors
  • 長井 優 NAGAI, Yu
  • 野原 宏一 NOHARA, Koichi
Agents
  • 特許業務法人酒井国際特許事務所 SAKAI INTERNATIONAL PATENT OFFICE
Priority Data
2018-24385627.12.2018JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) CHATTERING DETECTION METHOD FOR COLD ROLLING MILL, CHATTERING DETECTION DEVICE FOR COLD ROLLING MILL, COLD ROLLING METHOD, AND COLD ROLLING MILL
(FR) PROCÉDÉ DE DÉTECTION DE BROUTAGE POUR LAMINOIR À FROID, DISPOSITIF DE DÉTECTION DE BROUTAGE POUR LAMINOIR À FROID, PROCÉDÉ DE LAMINAGE À FROID ET LAMINOIR À FROID
(JA) 冷間圧延機のチャタリング検出方法、冷間圧延機のチャタリング検出装置、冷間圧延方法、及び冷間圧延機
Abstract
(EN) This chattering detection method for a cold rolling mill involves a measurement step for measuring vibration in the cold rolling mill, a calculation step in which, for a vibration time waveform measured in the measurement step, calculates a time waveform of vibration intensity by performing a frequency analysis with a prescribed period not longer than the time that periodic vibration continues without converging, and a predictive vibration determination step in which, on the basis of the number of points at which the vibration intensity included in the vibration intensity time waveform calculated in the calculation step is greater than a prescribed threshold value, vibration in the cold rolling mill that is predictive of chattering is detected.
(FR) Le procédé de détection de broutage pour laminoir à froid selon la présente invention comprend une étape de mesure pour mesurer une vibration dans le laminoir à froid, une étape de calcul dans laquelle, pour une forme d'onde de temps de vibration mesurée lors de l'étape de mesure, on calcule une forme d'onde temporelle de l'intensité de vibration en réalisant une analyse de fréquence avec une période prescrite qui n'est pas plus longue que le temps pendant lequel une vibration périodique se poursuit sans converger, et une étape de détermination de vibration prédictive dans laquelle, sur la base du nombre de points où l'intensité de vibration incluse dans la forme d'onde temporelle de l'intensité de vibration calculée lors de l'étape de calcul est supérieure à une valeur seuil prescrite, une vibration dans le laminoir à froid qui est prédictive du broutage est détectée.
(JA) 本発明に係る冷間圧延機のチャタリング検出方法は、冷間圧延機の振動を測定する測定ステップと、測定ステップにおいて測定された振動の時間波形に対して、周期的な振動が収束せずに継続する時間と同等以下の所定周期で周波数解析を実行することにより、振動強度の時間波形を算出する算出ステップと、算出ステップにおいて算出された振動強度の時間波形に含まれる振動強度が所定の閾値より大きい点の数に基づいて、冷間圧延機のチャタリングの予兆振動を検出する予兆振動判定ステップと、を含む。
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