| 摘要 |
In accordance with one embodiment, the present invention provides a weldi ng torch nipple for coupling a welding cable and neck assembly to one another. The exemplary nipple includes two hollow tubes: an inner tube disposed in an out er tube. The inner tube includes features that facilitate mating with a welding cable and the outer tube is configured to receive a neck assembly. A dielectric layer disposed between the inner and outer tubes electrically isolates the outer tube from the inner tube, thereby protecting a user from electrical shock, for instance. The dielectric layer includes a stem portion that extends radially into the outer tube, blocking axial separation of the outer tube and the dielectric layer.
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