Title:
圧延材の冷却制御方法及び冷却制御装置
Document Type and Number:
Japanese Patent JP7205517
Kind Code:
B2
Abstract:
To provide a cooling control method and a cooling control device for a rolled material which are capable of accurately controlling winding temperature of the rolled material.SOLUTION: The cooling control method for a rolled material according to the present invention comprises: a temperature difference calculation step of calculating temperature differences between respective adjacent actual values, for a plurality of hot rolled materials in a same material category, using the actual values of a temperature distribution in a longitudinal direction of the hot-rolled material on an outlet side of cooling equipment; a standard deviation calculation step of calculating a standard deviation of temperature differences for each position in the longitudinal direction with respect to data of the temperature differences at a same longitudinal direction position calculated in the temperature difference calculation step, regarded to be a population; a learning point determination step of determining, to be a learning point of heat transfer coefficient, a longitudinal position in front of a longitudinal position having values, continuously having become equal to or less than a predetermined threshold value, of standard deviations calculated in the standard deviation calculation step; and a learning step of calculating, for each material category, a learning coefficient to be reflected to a learning term in a physical model formula, using temperature of the hot rolled material at the learning point determined in the learning point determination step.SELECTED DRAWING: Figure 3
Inventors:
Kenichi Shirai
Yanagino
Makoto Imai
Mano Daichi
Yanagino
Makoto Imai
Mano Daichi
Application Number:
JP2020085397A
Publication Date:
January 17, 2023
Filing Date:
May 14, 2020
Export Citation:
Assignee:
jfe Steel Corporation
International Classes:
B21B37/76; B21B1/26; B21B37/74; C21D11/00
Domestic Patent References:
| JP2001252709A | ||||
| JP8252622A | ||||
| JP10277627A | ||||
| JP2002239621A | ||||
| JP2012081518A | ||||
| JP62130222A | ||||
| JP2014217848A | ||||
| JP52114507A |
Attorney, Agent or Firm:
Sakai International Patent Office