OPERATION METHOD OF LADLE REFINING PROCESS

Title:

OPERATION METHOD OF LADLE REFINING PROCESS

Document Type and Number:

WIPO Patent Application WO/2021/106441

Kind Code:

A1

Abstract:

Provided is a method for accurately estimating, in a ladle refining process for molten steel, the temperature of the molten steel that has undergone a ladle refining process. In an operation method for performing the ladle refining process of the molten steel while continuously measuring the temperature of the molten steel during the operation of the ladle refining process of the molten steel, a time earlier than the scheduled end time of the ladle refining process within the continuous temperature measurement period of the molten steel is set as a determination timing, and the temperature of the molten steel at the scheduled end time is estimated on the basis of the temporal change of the temperature of the molten steel in the continuous temperature measurement data on the molten steel from the start of the continuous temperature measurement of the molten steel to the determination timing.

Inventors:

HIRAKAWA KAZUAKI (JP)
HIRATA KOICHIRO (JP)
SHIMODA ISAO (JP)
YAMAUCHI TAKASHI (JP)
UEHARA HIROHIDE (JP)

Application Number:

PCT/JP2020/039613

Publication Date:

June 03, 2021

Filing Date:

October 21, 2020

Export Citation:

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Assignee:

JFE STEEL CORP (JP)

International Classes:

C21C7/00; B22D1/00; C21C7/10; G01K7/00; G01K13/02

Foreign References:

JP2010243171A	2010-10-28
JP2009041069A	2009-02-26
JPS56162394A	1981-12-14
JPS61195914A	1986-08-30
JPS63203716A	1988-08-23
JP2017186601A	2017-10-12
JP2018104805A	2018-07-05
JPH11293331A	1999-10-26
JPH01209328A	1989-08-23
JPS63203716A	1988-08-23
JPH11124618A	1999-05-11
JP2010217164A	2010-09-30

Other References: