| 摘要 |
PURPOSE:To perform satisfactory build-up welding under wide welding conditions in horizontal electroslag build-up welding, by performing the build-up welding by using a consumable electrode and a flux in a water-cooled frame. CONSTITUTION:A flux 3 is sprayed and electric current is supplied to an electrode 1 through a tip 7 from a conductor 6 at a welding head side. The flux 3 melts between the electrode 1 and a conductor 5 on the earth side, and the electrode 1 is melted and overlaid by the Joule heat of the molten slag 15 of a high temp. generated by said melting. Build-up beads 14 and solidified slag 4 are formed according to the progression of the welding, but the rear side in the welding direction W of a water-cooled frame 8 is made into the construction having no side walls; therefore, the frame 8 does not contact with the slag 4 and the beads 14, thus eliminating the possibility of deviating the welding speed. |
