Title:
STEEL SHEET ROLLING METHOD AND STEEL SHEET MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2020/158284
Kind Code:
A1
Abstract:
Provided are a steel sheet rolling method and a steel sheet manufacturing method that can prevent: the occurrence of external defects in steel sheets caused by coolant drips; and the occurrence of steel sheet shape defects, by appropriately controlling heat deformation of a work roll. In this steel sheet rolling method that supplies coolant to a roll constituting a rolling mill, during rolling: the amount of supplied coolant is suppressed to no more than a prescribed amount which is less than an upper normal amount, when starting operation of the rolling mill; and the amount of supplied coolant is increased to the upper normal amount if the medium elongation of the steel sheets has reached at least an upper target value.
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Inventors:
KURISU KEN (JP)
ISHII KENTARO (JP)
TAKEUCHI KAZUMA (JP)
ISHII KENTARO (JP)
TAKEUCHI KAZUMA (JP)
Application Number:
PCT/JP2019/051229
Publication Date:
August 06, 2020
Filing Date:
December 26, 2019
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
B21B27/10; B21B1/22
Foreign References:
| JP2000051913A | 2000-02-22 | |||
| JPS63230207A | 1988-09-26 | |||
| JP2013128958A | 2013-07-04 | |||
| JP2010138492A | 2010-06-24 | |||
| JPH0569027A | 1993-03-23 |
Other References:
See also references of EP 3888809A4
Attorney, Agent or Firm:
KUMASAKA Akira et al. (JP)
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