| 摘要 |
A consumable assembly for use in an arc welding apparatus is provided that includes a nozzle assembly having a nozzle body (100), an insulator (92) disposed within the nozzle body (1000), and a nozzle insert (94) disposed within the insulator (92). The nozzle insert (94) includes an internal gas diverter (110, 112). A contact tip (24) is disposed within the nozzle assembly and includes at least one aperture extending from an exterior portion to an internal cavity, an exit orifice, a distal end face, and an exterior surface extending between the at least one aperture and the distal end portion of the contact tip (24). The internal gas diverter directs a flow of shield gas exiting the at least one aperture along the exterior surface of the contact tip (24), and a principal distance from the at least one aperture to the distal end face is varied to adjust the flow of the shield gas for improved cooling. |
