Title:
ZINC PLATED STEEL SHEET HAVING EXCELLENT SPOT WELDABILITY AND MANUFACTURING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2020/130602
Kind Code:
A3
Abstract:
The present invention relates to a zinc plated steel sheet having excellent spot weldability and a manufacturing method thereof. The zinc plated steel sheet according to an aspect of the present invention comprises a steel sheet and a zinc plated layer formed on the surface of the steel sheet, wherein the ratio (a/b) between a widthwise average value (a) of thickness of an internal oxidized layer and a widthwise standard deviation (b) of thickness of the internal oxidized layer in the steel sheet may be 1.5 or more.
Inventors:
KANG KI-CHEOL (KR)
LEE SEA-WOONG (KR)
LEE KYOO-YOUNG (KR)
KIM JONG-HO (KR)
IM YOUNG-ROC (KR)
LEE SEA-WOONG (KR)
LEE KYOO-YOUNG (KR)
KIM JONG-HO (KR)
IM YOUNG-ROC (KR)
Application Number:
PCT/KR2019/017929
Publication Date:
October 22, 2020
Filing Date:
December 18, 2019
Export Citation:
Assignee:
POSCO (KR)
International Classes:
C22C38/22; C23C2/06; C22C38/26; C22C38/28; C22C38/32; C22C38/38; C23C2/02; C23C2/28; C23C2/40; C23G1/08
Foreign References:
| KR20160132940A | 2016-11-21 | |||
| JP2001342541A | 2001-12-14 | |||
| JP2001262302A | 2001-09-26 | |||
| KR20160078827A | 2016-07-05 | |||
| KR100868457B1 | 2008-11-11 |
Attorney, Agent or Firm:
C&S PATENT AND LAW OFFICE (KR)
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