Title:
ADVANCED-HIGH STRENGTH HOT-ROLLED STEEL SHEET HAVING REDUCED MATERIAL DEVIATION AND ENHANCED SURFACE QUALITY AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2019/009675
Kind Code:
A1
Abstract:
The present invention relates to an advanced-high strength hot-rolled steel sheet, having tensile strength of 800MPa, and a method for manufacturing same, the method enabling enhanced surface quality, processability and weldability as well as significantly reduced deviation of the material in the width and length directions of the steel sheet by means of an endless rolling mode in a continuous casting-direct rolling process.
Inventors:
KONG JONG-PAN (KR)
CHUNG JEA-SOOK (KR)
CHUNG JEA-SOOK (KR)
Application Number:
PCT/KR2018/007718
Publication Date:
January 10, 2019
Filing Date:
July 06, 2018
Export Citation:
Assignee:
POSCO (KR)
International Classes:
C22C38/38; B21B1/46; B21B45/08; C21D1/667; C21D8/02; C21D9/46; C22C38/26; C22C38/28; C22C38/32
Foreign References:
| JP2011241456A | 2011-12-01 | |||
| KR20170054622A | 2017-05-18 | |||
| KR20160090363A | 2016-07-29 | |||
| JPH09241739A | 1997-09-16 | |||
| KR20140043156A | 2014-04-08 | |||
| KR20140081048A | 2014-07-01 |
Other References:
J.-P. KONG, SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, vol. 21, no. 1, pages 2016
See also references of EP 3650571A4
See also references of EP 3650571A4
Attorney, Agent or Firm:
C&S PATENT AND LAW OFFICE (KR)
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