Patent ID: 6441334
Filing Date: 2002-08-27
Classification: B23K

Abstract:
A gas shielded arc welding flux cored wire used in a direct current positive polarity mode, the flux cored wire comprising: a steel sheath; and flux encased in the steel sheath, whereinthe flux contains 0.7 to 3 wt % Al, 0.1 to 1.2 wt % Mg and 1.2 to 5 wt % BaF2, each wt % being with respect to a total weight of the wire; a sum of an Al content in the flux and three times a Mg content in the flux is in a range of 1.3 to 5 wt %; a filling ratio of the flux to the total weight of the wire is in a range of 5 to 30 wt %; a total Mn content in the steel sheath and the flux combined is in a range of 0.2 to 1.9 wt %; and a total content of Si, in a form other than SiO2, in the steel sheath and the flux combined is in a range of 0.001 to 0.9 wt %.