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pot puncher

A professional who tends battery of reduction pots that smelt aluminum oxide into aluminum. Respnsibilities include:

  • Adds specified amounts of oxide to pots from overhead hopper, at designated time intervals, and rakes oxide over crust formed by cooling of bath.
  • Observes gas flames breaking through crust, and rakes oxide or pieces of crust over flames to prevent damage to anode.
  • Watches warning lights and notes color of electrolyte (solution), and breaks up crust to add oxide to bath, using crowbar or pneumatic crust-breaking machine.
  • Stirs bath to eliminate gas, using rake.
  • Observes instruments and turns rheostat, or repositions anode in bath, to increase or decrease current flow and regulate temperature of solution.
  • May train workers in operation of reduction pots.
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