SYSTEMS AND METHODS FOR USING FLUORINE-CONTAINING GAS FOR SUBMERGED ARC WELDING

摘要

This disclosure relates generally to welding, and more specifically, to submerged arc welding (SAW). In an embodiment, a welding system (10) includes a gas supply system (16) configured to provide a fluorine-containing gas flow. The system also includes a wire supply system (14) configured to provide welding wire, and a flux supply system (17) configured to provide flux near a welding arc during submerged arc welding (SAW). The system further includes a welding torch assembly (18) configured to receive the fluorine- containing gas flow and the welding wire and to deliver the fluorine- containing gas flow and the welding wire near the welding arc during the SAW.