STEEL WELDING COMPONENT WITH ALUMINUM OR ALUMINUM ALLOY COATING, AND PREPARATION METHOD THEREFOR

Title:

STEEL WELDING COMPONENT WITH ALUMINUM OR ALUMINUM ALLOY COATING, AND PREPARATION METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2018/077067

Kind Code:

A1

Abstract:

A steel welding component with an aluminum or aluminum alloy coating, specifically a steel welding blank with an aluminum or aluminum alloy coating. The welding blank is constituted by a steel substrate (1) and coatings (2, 2'); the coating (2) comprises an intermetallic compound alloy layer (21) which contacts the substrate (1), and a metal alloy layer (22) on the intermetallic compound alloy layer (21); on at least one of the coating surfaces of the welding blank, the coating (2) within an area (3) to be welded of the welding blank is totally removed, and an end face (23) of the welding blank coating (2) where the coating within the area (3) to be welded is removed has an angle of β with a plane vertical to a surface (11) of the substrate (1) which is parallel to the welding seam, wherein β = 0-80°. Also provided are welding and preparation methods for the steel welding component. The steel welding blank prepared by the method ensures the strength of extension, elongation, and corrosion resistance of a hot-stamped welded joint.

Inventors:

PAN HUA (CN)
SU YONGCHAO (CN)
LEI MING (CN)
SHI LEI (CN)
JIANG HAOMIN (CN)

Application Number:

PCT/CN2017/106516

Publication Date:

May 03, 2018

Filing Date:

October 17, 2017

Export Citation:

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Assignee:

BAOSHAN IRON & STEEL (CN)

International Classes:

B23K26/32; C22C38/04

Foreign References:

CN101426612A	2009-05-06
CN102971444A	2013-03-13
CN104204257A	2014-12-10
US20060021975A1	2006-02-02
CA2942755A1	2015-10-08
CN101426612A	2009-05-06

Other References: