FLUX CORED WIRE FOR GAS SHIELDED ARC WELDING, AND GAS SHIELDED ARC WELDING METHOD

摘要

Provided are a flux containing wire for gas shield arc welding and a gas shield arc welding method capable of obtaining a proper bead shape in the horizontal fillet welding of a large panel without increasing the amount of welding slag. The flux containing wire for gas shield arc welding satisfies equations 1-4 when the viscosity of the slag is ρ [Pa·s], and the solidification temperature of the slab is Ts [°C] among the characteristics of the slag after the welding. Equation 1 is represented by Ts <= 6667ρ + 1277, Equation 2 is represented by Ts >= - 5000ρ + 1545, Equation 3 is represented by Ts >= 6667ρ + 1230, and Equation 4 is represented by Ts <= - 5000ρ + 1580.