Anode Cast Iron Thickness Optimization

  • Mark D. Ohlswager
  • Glen E. Goeres
  • Richard W. Peterson

Abstract

Cast iron thickness of 24 commercial anode connections was varied by using stub holes 6.5 and 6.75 inches diameter with stubs 5.6, 5.8, and 6.0 inches diameter. Half of the stubs were preheated to 150°C before cast iron was poured; the other half had no preheat. Stub temperatures and stub-carbon resistances were measured during the first two days of pot operation. Stub-carbon resistance decreased and then leveled off with increasing stub temperature. This leveling off was an indication of the tightness of the connection. To avoid anode breakage this tightening should not occur prematurely. A stub hole one inch larger in diameter than the stub was best for castings poured with unheated stubs. Preheated stubs required thinner castings and were prone to overheating during pot operation.

Keywords

Cast Iron Light Metal Stationary Trailer Aluminum Company Asymptote Temperature 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Peterson, R. W., “Studies of Stub to Carbon Voltage,” Lig ht Metals 1978, Volume 1, pp. 367–378.Google Scholar
  2. 2.
    Brooks, D. G. and Bullough, V. L., “Factors in the Design of Reduction Cell Anodes,” Liffht Metals 1984, p. 961.Google Scholar
  3. 3.
    SAS Institute Inc., Box 8000, Cary, NC 27511–8000.Google Scholar

Copyright information

© The Minerals, Metals & Materials Society 2016

Authors and Affiliations

  • Mark D. Ohlswager
    • 1
  • Glen E. Goeres
    • 1
  • Richard W. Peterson
    • 2
  1. 1.Wenatchee WorksAluminum Company of AmericaWenatcheeUSA
  2. 2.Alcoa LaboratoriesAluminum Company of AmericaAlcoa CenterUSA

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