| 摘要 |
PROBLEM TO BE SOLVED: To provide a flux-cored wire for gas shielded arc welding with which the amount of spatters to be produced is reduced, excellent pit resistance can be obtained, and further, a satisfactory bead shape can be obtained in fillet welding for a primer-coated steel sheet. SOLUTION: The flux-cored wire for gas shielded arc welding is obtained by filling flux into a sheath made of steel, and comprises, by mass% to the total mass of the wire, 0.7 to 1.5% ZrO<SB>2</SB>, Ti oxide of 1.5 to 3.5% by a value expressed in terms of TiO<SB>2</SB>, and 0.5 to 1.0% SiO<SB>2</SB>, wherein the ratio Mn/Si between Si and Mn added in the form of metal or alloy, is controlled to 2.5 to 4.0. Further, the total of slag forming agent components is controlled to 4 to 7% by mass% to the total mass of the wire. COPYRIGHT: (C)2004,JPO&NCIPI
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