STEEL SHEET PLATED WITH AL ALLOY AND MANUFACTURING METHOD THEREFOR

Title:

STEEL SHEET PLATED WITH AL ALLOY AND MANUFACTURING METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2021/112521

Kind Code:

A1

Abstract:

The present invention relates to a steel sheet plated with an Al alloy and a manufacturing method therefor and, more specifically, to a steel sheet plated with an Al alloy which can be preferably applied as a vehicle steel sheet and the like and a manufacturing method therefor. An embodiment of the present invention provides a steel sheet plated with Al alloy and a manufacturing method therefor, wherein the steel sheet comprises: a base steel plate; an Al alloy plating layer formed on at least one surface of the base steel plate; and a Zn-Al plating layer which is formed on the Al alloy plating layer and comprises, by weight%, 0.5-1.0% of Al and the balance of Zn and inevitable impurities, with a plating adhesion amount of 3-12 g/m 2.

Inventors:

JUNG WOO-SUNG (KR)
PARK SANG-HOON (KR)
LEE SUK-KYU (KR)

Application Number:

PCT/KR2020/017347

Publication Date:

June 10, 2021

Filing Date:

December 01, 2020

Export Citation:

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Assignee:

POSCO (KR)

International Classes:

C23C28/02; C22C18/04; C22C21/10; C23C2/12; C23C14/16; C23C14/24

Foreign References:

KR0146986B1	1998-11-02
KR20190076796A	2019-07-02
JP2018090879A	2018-06-14
US5429843A	1995-07-04
KR20170116102A	2017-10-18
KR19950027278A	1995-08-29

Other References: