Title:
ZN-MG ALLOY-COATED STEEL SHEET WITH EXCELLENT BLACKENING RESISTANCE AND EXCELLENT ADHESION AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2013/100616
Kind Code:
A1
Abstract:
The present invention relates to a Zn-Mg alloy-coated steel sheet with excellent blackening resistance and excellent coating adhesion and to a method for manufacturing same. Provided are a Zn-Mg alloy-coated steel sheet with excellent blackening resistance and excellent adhesion and a method for manufacturing same, the steel sheet comprising: a substrate steel sheet; a Zn-Fe intermetallic compound layer formed on the substrate steel sheet; a first Zn-Mg coating layer formed on the Zn-Fe intermetallic compound layer and comprising a Zn-Fe intermetallic compound in which the content of Zn is 95 % by weight or higher; a second Zn-Mg coating layer formed on the first Zn-Mg coating layer and comprising a Zn-Mg intermetallic compound in which the content of Zn is 80 to 95 % by weight; and an oxide film formed on the second Zn-Mg coating layer and comprising a metallic oxide.
Inventors:
LEE DONG-YOEUL (KR)
NAM KYUNG-HOON (KR)
JUNG YONG-HWA (KR)
HONG SEOK-JUN (KR)
KIM TAE-YEOB (KR)
KWAK YOUNG-JIN (KR)
EOM MUN-JONG (KR)
JUNG WOO-SUNG (KR)
NAM KYUNG-HOON (KR)
JUNG YONG-HWA (KR)
HONG SEOK-JUN (KR)
KIM TAE-YEOB (KR)
KWAK YOUNG-JIN (KR)
EOM MUN-JONG (KR)
JUNG WOO-SUNG (KR)
Application Number:
PCT/KR2012/011540
Publication Date:
July 04, 2013
Filing Date:
December 27, 2012
Export Citation:
Assignee:
POSCO (KR)
International Classes:
C23C14/14; C23C14/58; C23C16/40
Foreign References:
| JPH1068063A | 1998-03-10 | |||
| JPH083728A | 1996-01-09 | |||
| KR20070068215A | 2007-06-29 | |||
| JPH09228030A | 1997-09-02 | |||
| JPH09241828A | 1997-09-16 |
Other References:
See also references of EP 2799591A4
Attorney, Agent or Firm:
C&S PATENT AND LAW OFFICE (Daelim Acrotel13 Eonju-ro 30-gil,Gangnam-gu, Seoul 135-971, KR)
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Claims: