Title:
ARC WELDING METHOD FOR GALVANIZED STEEL SHEET
Document Type and Number:
Japanese Patent JP3513382
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a welding method for a galvanized steel plate wherein a fused metal is not blown away by vaporized zinc gas, weld beads having an excellent shape are formed, spatters are hardly generated and gas shielded arc welding having excellent pit resistance is executed even for an object to be welded which consists of a galvanized steel sheet having a large quantity of stuck zinc such as the quantity of stuck zinc of ≥300 g/m2.
SOLUTION: In a method for arc welding a galvanized steel sheet, a quantity of oxygen in a weld metal is specified to ≤200 ppm by the use of a gas shielded arc welding flux cored wire wherein flux is filled into a steel made sheath, and the gas shielded arc welding is executed with a DC straight polarity.
Inventors:
Kurokawa, Tsuyoshi
Koshiishi, Fusaki
Uchiyama, Hajime
Koshiishi, Fusaki
Uchiyama, Hajime
Application Number:
JP4052198A
Publication Date:
March 31, 2004
Filing Date:
February 23, 1998
Export Citation:
Assignee:
KOBE STEEL LTD
International Classes:
B23K9/173; B23K9/23; B23K35/368; C23C2/06; (IPC1-7): B23K35/368; B23K9/173; B23K9/23
Attorney, Agent or Firm:
梶 良之
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