| 摘要 |
PURPOSE:To widen a range for application of welding by incorporating specific wt% each of C, Si, Al, N, Ti, etc. into the titled wire and consisting the balance substantially of Fe. CONSTITUTION:The component compsn. of the wire to be used for gas shielded arc welding is composed of <=0.08% C, 0.2-0.6% Si, 0.2-0.8% Mn, <=0.015% S, 0.008-0.10% Al, 0.005-0.020% O, <=0.008% N, 0.05-0.35% Ti and the balance Fe. The arc is stabilized by the above-mentioned method and S, O, N, Ti which transfer droplets to finer grains act. Al prevents the generation of micro-blowholes. The welding speed is thus increased to about 6m/min by using the wire composed in the above-mentioned manner and the all-attitudes welding is made possible. The range for application of welding is widened.
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