| 摘要 |
PROBLEM TO BE SOLVED: To provide a welding steel wire using steel strands with which occurrence of spatter is reduced, excellent feedability is obtained, and no Cu-plated layer is formed in the carbon dioxide gas-shielded arc welding using shield gas mainly consisting of CO<SB>2</SB>gas. SOLUTION: In the steel wire for the carbon dioxide gas-shielded arc welding, a solid lubricant film of 0.01-2.00 g per 10 kg of the welding steel wire is formed, and a liquid lubricant film of 0.1-2.0 g per 10 kg of the welding steel wire is formed on a surface of steel strands having no Cu-plated layer and containing, by mass,≤0.20% C, 0.05-2.50% Si, 0.25-3.50% Mn, 0.015-0.100% REM,≤0.05% P, and≤0.05% S. COPYRIGHT: (C)2005,JPO&NCIPI
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