DEVICE FOR INVERTED HIDDEN-ARC WELDING

PCT No. PCT/SU88/99265 Sec. 371 Date Feb. 6, 1990 Sec. 102(e) Date Feb. 6, 1990 PCT Filed Dec. 14, 1988 PCT Pub. No. WO89/11947 PCT Pub. Date Dec. 14, 1989.An apparatus for overhead submerged-arc welding includes a driven trolley supporting a vertical slide with a carriage. On the carriage (22) is mounted an arm on the end of which with a possibility of swinging with respect to its longitudinal and transverse planes there is located a forming means. The apparatus also has a hopper with flux accommodating a nozzle for a consumable electrode, a bowl provided in the top part of the hopper through which extends the nozzle for the consumable electrode (14) and means for supplying and pressing the flux. The hopper is mounted on the pivot pin disposed on a front wall (18) of the forming means to extend in parallel with a transverse axis thereof and aligned with the upper and face of a rear wall of the bowl located adjacent to the nozzle. Such location of the pivot pin supporting the hopper (1) and the forming means ensures swinging of the bowl in transverse direction and constant preset flux pressure in the welding zone. The present invention may be used for welding of longitudinal and rotatable annular joints.