| 摘要 |
PURPOSE:To perform welding with easy start of arc and high stability of arcs at a high rate of deposition by using a flux cored wire of a specific compsn. contg. stainless steel powder in submerged arc welding of stainless steel. CONSTITUTION:A flux of the following compsn. is packed in a stainless steel hollow wire of the same material as the stainless steel to be welded as a flux cored wire to be used in submerged arc welding of stainless steel: A flux which contains 0.5-20% 1 or >=2 kinds among rutile, ilmenite and zircon sand by weight of the wire, 0.05-3% 1 or >=2 kinds among potash feldspar, silica and wollastonite, 0.2-5% 1 or >=2 kinds among calcium carbonate, lithium carbonate and barium carbonate, 0.3-2% fluorides such as CaF2 and wherein stainless steel powder is so mixed at <=25% ratio that weld metal and the materials to be welded have the same compsn. |
