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The role of automotive sheet metal welding gun nozzle
Automotive sheet metal torch nozzle plays a protective role.

The nozzle delivers shielding gas to the welding area to prevent the welding wire tip, arc and molten pool from contacting with air. According to the material, it is divided into ceramic nozzle and metal nozzle.

The metal nozzle must be insulated from the conductive part of the welding gun.