PURPOSE: To form weld beads having excellent shapes, appearance, undercut resistance and releasability of slag in the stage of flat fillet welding and horizontal fillet welding by using a flux cored welding wire electrode contg. TiO2, SiO2, Al2O3, Mn and org. materials as essential components.
CONSTITUTION: In the stage of flat fillet welding and horizontal fillet welding, a welding wire wherein a flux contg. 35W70wt% TiO2, 5W30wt% SiO2, 1W5wt% Al2O3, 10W30wt% Mn, and 0.2W6wt% org. materials such as pulp flocs, starch, guar gum as essential components and further contg. 0.5W15wt% in total ≥1 kind among CaO, MnO, and MgO in order to improve releasability of slag is packed at 10W25wt% based on the weight of the wire in a mild steel sheath is used. Even in the flat position in the fillet joint parts of a relatively wide gap larger than 3mm and in horizontal welding, no undercuts are produced and the weld beads having excellent appearance are formed.
ROKUJIYOU MASAHARU
NAGAOKA SHIGEO
| JPS52144341A | 1977-12-01 |