METHOD FOR WELDING A ZINC COATED STEEL SHEET

Title:

METHOD FOR WELDING A ZINC COATED STEEL SHEET

Document Type and Number:

WIPO Patent Application WO/2020/091254

Kind Code:

A1

Abstract:

A method for welding a zinc coated steel sheet is provided. The method for welding a zinc coated steel sheet of the present invention is a method for welding a zinc coated steel sheet by using a welding material, wherein when welding, the welding current is 150-300 A, a shielding gas is a mixed gas of Ar + 10-30% CO2, and the welding polarity is alternately altered so that the welding polarity fraction defined by relational equation 1 satisfies the range of 0.25-0.35.

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Inventors:

BAE GYU-YEOL (KR)
KIM HO-SOO (KR)

Application Number:

PCT/KR2019/013207

Publication Date:

May 07, 2020

Filing Date:

October 08, 2019

Export Citation:

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Assignee:

POSCO (KR)

International Classes:

B23K9/23; B23K9/095; B23K9/10; B23K9/16; B23K101/18; B23K101/34

Foreign References:

KR20180074826A	2018-07-04
JP2010264487A	2010-11-25
KR20140064764A	2014-05-28
JP2012101232A	2012-05-31
JPH079150A	1995-01-13
JP2016101593A	2016-06-02
JP2015167981A	2015-09-28

Attorney, Agent or Firm:

C&S PATENT AND LAW OFFICE (KR)

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