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AssigneeKabushiki Kaisha Kobe Seiko Sho
InventorsMinoru Kobayashi, Yoshiya Sakai, Shoji Minato, Tsuguo Ooe, Katsumi Arai, Tetsuo Suga
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A flux-cored wire electrode suitable for use in gas-shielded arc-welding, characterized in that the sum of the carbon content in the sheath made of soft steel and the carbon content in a lubricant adhered on the sheath is 0.045 wt. % or lower relative to the total weight of the sheath and a flux, which contains 20-50 wt. % of TiO.sub.2, 1-15 wt. % of SiO.sub.2, 2.5-10 wt. % of ZrO.sub.2, 0.1-5 wt. % of an arc-stabilizing agent, 10-45 wt. % of a deoxidizer and up to 50 wt. % of iron powder, all based on the total weight of the flux, is filled to an amount of 10-30 wt. % of the total weight of the wire electrode in the cavity surrounded by the sheath. The above flux-cored wire electrode features a low fume emission rate comparable with that of a solid wire electrode.
A flux-cored wire electrode suitable for use in gas-shielded arc-welding comprising a sheath of soft steel, a lubricant and a flux-core, wherein the sum of the carbon content of said sheath and lubricant is 0.045 wt.% or less of the total weight of said sheath, and wherein said sheath is filled with said flux to an amount of 10-30 wt.% of the total weight of said electrode, said flux consisting essentially of 20-50 wt.% of TiO.sub.2, 1-15 wt.% of SiO.sub.2, 2.5-10 wt.% of ZrO.sub.2, 0.1-5 wt.% of an arc-stabilizing agent, 10-45 wt.% of a deoxidizer and up to 50 wt.% of iron powder.
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