| 摘要 |
A collector bar adapted for utilization with carbon during the production of molten metal, such as aluminum, under Hall Héroult applications includes a one-piec e metallic extruded and/or drawn tube of relatively low electrical conductivity, such a s steel or ferrous metal and a one-piece rod of relatively high electrical conductivity, such a s copper. The tube is in encircling relationship to the rod and the rod and tube have surfaces in intimate surfaces-to-surface contact. The rod has an exterior profile exactly complementing an interior profile of the tube, or alternately the rod is relatively elongated and narrow and opposite longitudinal edges thereof are in intimate surface-to-surface conta ct with parallel opposite surfaces of the tube or opposite diagonal corners of the tube.</SDO AB>
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