Multi electrode submerged arc welding method using the same and a metal-based flux cored wire

摘要

PROBLEM TO BE SOLVED: To provide a flux cored wire for submerged arc welding capable of extremely effectively reducing the amount of diffusible hydrogen in a welding metal and a multi-electrode submerged arc welding method using the same.;SOLUTION: The flux cored wire for submerged arc welding is a wire containing flux for use in submerged arc welding, and the flux filled in the wire has a composition containing 0.1 mass% or more and less than 10 mass% of a powdered fluorine compound whose melting point is 1,000°C or less.;COPYRIGHT: (C)2013,JPO&INPIT