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Metal Science and Heat Treatment

, Volume 14, Issue 6, pp 493–497 | Cite as

Rapid carburizing with natural gas in a fluidized bed

  • T. A. Pumpyanskaya
  • V. A. Vinokurov
  • A. P. Baskakov
Chemicothermal Treatment
  • 26 Downloads

Conclusions

  1. 1.

    Carburizing with combustion of natural gas in a fluidized bed with a stationary catalyst and air input coefficient α<0.25 is not possible because the GIAP-3 catalyst is deactivated by soot.

    When α=0.26–0.29 the carburizing capacity of the atmosphere is insufficient to carburize carbon and alloy steels.

     
  2. 2.

    In order to increase the carbon potential of the atmosphere with α=0.26–0.29, 15–25% gas-carburizer must be added.

     
  3. 3.

    The carburizing time for a case depth of 1.0–1.2 mm is 1.5 h at 950°C with the addition of raw natural gas. The high rate of the process is due to the rapid heating and more favorable conditions of the surface for carburizing in a fluidized bed.

     

Keywords

Atmosphere Combustion Favorable Condition Alloy Steel Rapid Heating 
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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Literature cited

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    A. P. Baskakov, Rapid Oxidation-Free Heating and Heat Treatment in a Fluidized Bed [in Russian], Metallurgiya, Moscow (1968).Google Scholar
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    S. S. Iskhakov et al.; Metal. i Term. Obrabotka Metal., No. 11 (1969).Google Scholar
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Copyright information

© Consultants Bureau, a division of Plenum Publishing Corporation 1972

Authors and Affiliations

  • T. A. Pumpyanskaya
  • V. A. Vinokurov
  • A. P. Baskakov

There are no affiliations available

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