The in-line inspection of carbon anodes for aluminum production |
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Authors: | Fawzi Emad PhD Paul Haldemann MS Art Nispel BS Larry Logan MBA |
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Affiliation: | 1. Electrical Engineering Department, University of Maryland, USA 2. Eastalco Aluminum Company, Frederick, Maryland, USA 3. C&K Publications, Hancock, Maryland, USA
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Abstract: | In this paper, methods for measuring the quality of carbon anodes consumed in the commercial production of aluminum are discussed. The electrical and mechanical qualities of these anodes are important for the economic operation of the aluminum plant. While the investigation is ongoing, results from tests made at an aluminum reduction plant are included. The methods reviewed include direct resistivity measurement using core samples, ultrasonic measurement, the hammer method, analysis of the Hall effect, the four-probe method, and use of magnetic coils (various arrangements). |
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