Method and apparatus for refining the metal of a consumable electrode
Abstract
Abstract IN A CONSUMABLE ELECTRODE FURNACE IN WHICH AN ELECTRODE PARTLY IMMERSED IN A SLAG LAYER IS GRANDUALLY MELTED BY CURRENT PASSIN THROUGH THE SLAG TO A CONDUCTIVE CRUCIBLE RECEIVING THE SLAG AND THE ELECTRODE, AND AN INGOT OF REFINED METAL COLLECTES AT THE CRUCIBLE BOTTOM, THE BOTTOM WALL AND UPRIGHT WALL OF THE CRUCIBLE ARE ELECTRICALLY INSULATED FROM EACH OTHER, THEREBY PERMITTING CURRENT TO BE PASSED DURING START-UP BETWEEN THE ELECTRODE AND THE BOTTOM WALL, AND THEREAFTER IN A PREDOMINANTLY HORIZONTAL PATH BETWEEN THE ELECTRODE AND THE UPRIGHT CRUCIBLE WALL. THE RESULTING FLUCTUATING POTENTIAL BETWEEN THE ELECTRODE AND THE UPRIGHT CRUCIBLE WALL PERMITS THE DEPTH OF ELECTRODE IMMERSION TO BE CONTROLLED AUTOMATICALLY TO MAINTAIN OPTIMUM OPERATING CONDITIONS.
Inventors
- 👤 C Doenecke
- 👤 K Redel
Bibliographic Details
Claims Analysis
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