SUBMERGED ARC WELDING SYSTEMS AND WELDING TORCHES WITH PRESSURIZED FLUX DELIVERY HAVING AT LEAST ONE VENT; FLUX MUFFLER WITH VENT CHAMBER, CASING AND FILTER

摘要

A submerged arc welding system. In one embodiment, the submerged arc welding system includes a robot (R), a flux supply (140) distal from the robot, and at least one wire supply (125) distal from the robot. The system also includes a welding torch (105) connected to the robot, a wire path connecting the wire supply to the welding torch, and a flux path connecting the flux supply to the welding torch. A flux delivery system is configured to move flux from the flux supply to the welding torch. At least one vent is disposed on the flux path adjacent the welding torch (105), to evacuate air from the flux path.