FLUX-CONTAINING WIRE FOR GAS SHIELD ARC WELDING

摘要

PROBLEM TO BE SOLVED: To provide a flux-containing wire for gas shield arc welding capable of obtaining good welding workability and excellent primer resistance where used for the fillet welding of a primer coated steel sheet. SOLUTION: The inside of the outer surface 1 made of steel is filled with flux 2 containing specified amounts of CaF2, one or two kinds of the multiple oxide of alkali metal and/or alkaline-earth metal and Ti and the multiple oxide of alkali metal and/or alkaline-earth metal, Ti and Si and MgO and/or Mg by a value expressed in terms of MgO, to the total weight of the wire.