Title:
PLATED STEEL SHEET HAVING EXCELLENT CORROSION RESISTANCE, WORKABILITY AND SURFACE QUALITY AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2021/256906
Kind Code:
A1
Abstract:
Provided are a plated steel sheet and a method for manufacturing same, the plated steel sheet comprising: a base steel sheet; a Zn-Mg-Al based plated layer provided on at least one surface of the base steel sheet; and an Fe-Al based suppression layer provided between the base steel sheet and the Zn-Mg-Al based plated layer, wherein the plated layer comprises, in wt%: 4% or more of Mg; 2.1 times or more of Mg content and 14.2% or less of Al; 0.2% or less (including 0%) of Si; 0.1% or less (including 0%) of Sn; the remainder Zn; and unavoidable impurities.
Inventors:
SOHN IL-RYOUNG (KR)
KIM SUNG-JOO (KR)
KIM TAE-CHUL (KR)
YOO BONG-HWAN (KR)
KIM MYUNG-SOO (KR)
KIM JONG-SANG (KR)
HAN SANG-TAE (KR)
KIM KWANG-WON (KR)
KIM SUNG-JOO (KR)
KIM TAE-CHUL (KR)
YOO BONG-HWAN (KR)
KIM MYUNG-SOO (KR)
KIM JONG-SANG (KR)
HAN SANG-TAE (KR)
KIM KWANG-WON (KR)
Application Number:
PCT/KR2021/007705
Publication Date:
December 23, 2021
Filing Date:
June 18, 2021
Export Citation:
Assignee:
POSCO (KR)
International Classes:
C23C2/06; B24C1/08; B24C11/00; C22C18/04; C23C2/02; C23C2/20; C23C2/26
Domestic Patent References:
| WO2011001662A1 | 2011-01-06 |
Foreign References:
| JP2011214145A | 2011-10-27 | |||
| KR102058889B1 | 2019-12-26 | |||
| KR20190078434A | 2019-07-04 | |||
| KR20140074231A | 2014-06-17 | |||
| KR20150066339A | 2015-06-16 | |||
| KR20130133358A | 2013-12-09 |
Attorney, Agent or Firm:
C&S PATENT AND LAW OFFICE (KR)
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