The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 04, 2025
Filed:
Oct. 08, 2019
Applicant:
Posco, Pohang-si, KR;
Inventors:
Gyu-Yeol Bae, Incheon, KR;
Ho-Soo Kim, Incheon, KR;
Assignee:
POSCO CO., LTD, Pohang-si, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K 9/23 (2006.01); B23K 9/09 (2006.01); B23K 9/095 (2006.01); B23K 9/10 (2006.01); B23K 9/16 (2006.01); B23K 101/34 (2006.01); B23K 103/04 (2006.01);
U.S. Cl.
CPC ...
B23K 9/23 (2013.01); B23K 9/092 (2013.01); B23K 9/095 (2013.01); B23K 9/1006 (2013.01); B23K 9/16 (2013.01); B23K 2101/34 (2018.08); B23K 2103/04 (2018.08);
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.