Shrinkage phenomena in graphitization of preforms in castner furnaces

Shrinkage phenomena in graphitization of preforms in castner furnaces Dilatometric measurements of heated electrode preforms have been performed in industrial Castner furnaces for graphitization. The obtained curves reflect the processes typical for graphitization. In order to discuss the processes, the entire temperature range is divided into four parts, namely, 20 – 1000, 1000 – 1300, 1300 – 2100, and 2100 – 3100‡C. The behavior of the electrode preforms is analyzed in each of the temperature ranges, and recommendations are given for correcting the regimes of power supply. It is shown that the kind of filler coke and the impregnation of the preforms with pitch affect the dilatometric curve of the electrode plug considerably. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Refractories and Industrial Ceramics Springer Journals

Shrinkage phenomena in graphitization of preforms in castner furnaces

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Publisher
Springer US
Copyright
Copyright © 2001 by Kluwer Academic/Plenum Publishers
Subject
Chemistry; Characterization and Evaluation of Materials; Materials Science; Ceramics, Glass, Composites, Natural Methods
ISSN
1083-4877
eISSN
1573-9139
D.O.I.
10.1007/BF02693765
Publisher site
See Article on Publisher Site

Abstract

Dilatometric measurements of heated electrode preforms have been performed in industrial Castner furnaces for graphitization. The obtained curves reflect the processes typical for graphitization. In order to discuss the processes, the entire temperature range is divided into four parts, namely, 20 – 1000, 1000 – 1300, 1300 – 2100, and 2100 – 3100‡C. The behavior of the electrode preforms is analyzed in each of the temperature ranges, and recommendations are given for correcting the regimes of power supply. It is shown that the kind of filler coke and the impregnation of the preforms with pitch affect the dilatometric curve of the electrode plug considerably.

Journal

Refractories and Industrial CeramicsSpringer Journals

Published: Aug 26, 2007

References

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