Title:
HIGH MANGANESE HOT DIP ALUMINUM-PLATED STEEL SHEET HAVING EXCELLENT SACRIFICIAL PROTECTION AND PLATABILITY AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/117703
Kind Code:
A1
Abstract:
Disclosed are a high manganese hot dip aluminum-plated steel sheet and a method for manufacturing the same, the steel sheet comprising: a base steel sheet including, by wt%, 0.3-0.9% of C, 10-25% of Mn, 0.01-0.5% of Ti, 0.01-0.2% of Sn, 0.01-0.1% of Sb, and the balance of Fe and inevitable impurities; a hot dip aluminum-based plated layer formed on the base steel sheet and including 0.1 wt% or more of a sum of one or more types among Li, Na, and K, and the balance of Al and inevitable impurities; and an Al-Fe-Si-Mn based alloy layer formed between the base steel sheet and the aluminum-based plated layer, and having a dual structure with different average Fe amounts.
Inventors:
KIM YOUNG-HA (KR)
CHOI CHANG-SIK (KR)
SONG YON-KYUN (KR)
MIN KWANG-TAI (KR)
CHOI CHANG-SIK (KR)
SONG YON-KYUN (KR)
MIN KWANG-TAI (KR)
Application Number:
PCT/KR2017/015278
Publication Date:
June 28, 2018
Filing Date:
December 21, 2017
Export Citation:
Assignee:
POSCO (KR)
International Classes:
C23C2/12; C22C1/02; C22C21/00; C22C21/06; C22C38/04; C22C38/14; C22C38/60; C23C2/14; C23C2/28; C23C2/40
Foreign References:
| KR20150077694A | 2015-07-08 | |||
| KR20150049991A | 2015-05-08 | |||
| KR20160077594A | 2016-07-04 | |||
| JP2009521596A | 2009-06-04 | |||
| KR20160077558A | 2016-07-04 | |||
| JP2004244655A | 2004-09-02 |
Other References:
Y. YUN ET AL.: "Influence of Mischmetal on Wetting of Steel by Zn+5wt%Al Alloys", JOURNAL OF RARE EARTHS, vol. 11, 1993, pages 130
Attorney, Agent or Firm:
C&S PATENT AND LAW OFFICE (KR)
Download PDF: