| 摘要 |
PROBLEM TO BE SOLVED: To provide a flux-cored wire for gas shielded arc welding which has satisfactory wire feedability and reduced tip wear and can perform welding with a stable arc from short time welding to long time welding even in the case a longlength liner is used, and also, there are many bent parts. SOLUTION: In the flux-cored wire for gas shielded arc welding, a plurality of long grooves discontinuous to the longitudinal direction of the surface of the flux-cored wire for gas shielded arc welding are provided in the circumferential direction of the wire, into the long grooves, molybdenum disulfide is stuck by 0.2 to 2.0 g per 10 kg of the wire and carbonate of lime is stuck by 0.05 to 0.4 g by a value expressed in terms of Ca, and further, a feed lubricant composed of one or more kinds of lubricating oil being liquid at ordinary temperature is stuck by 0.1 to 2.5 g per 10 kg of the wire. Further, tetrafluoroethylene is stuck to the insides of the long grooves by 0.05 to 0.5 g by a value expressed in terms of F per 10 kg of the wire. COPYRIGHT: (C)2010,JPO&INPIT
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