| 摘要 |
An improved aluminum electrode hanger contact and method of making the same, which includes a longitudinal hole drilled in the end of the hanger. In one embodiment, a slot or slots are cut in such bar into the hole. Tin-coated copper inserts are inserted in the slot or slots with the inner ends thereof projecting into the hole and the outer ends closely underlying or projecting from the end of the hanger. In other embodiments, circular passages are provided transversely of the drilled hole and inserts in the form of tin-coated copper rod or rods are inserted in the passages. Superheated molten metal is permitted to flow into the hole filling the same, such molten metal preferably being obtained by the ignition of an aluminothermic welding composition. When the molten metal solidifies, the inserts are secured to the hanger, thus providing a low cost and significantly improved voltage drop contact between the aluminum hanger and a conductor. |
