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Heat treatment of tool steels in fluidized bed


  1. 1.

    Heating of the steels investigated in a fluidized bed at a temperature of 850° and holding 30 min induces negligible oxidation of the metal with an air input factor of 0.3–0.7.

  2. 2.

    Steel 70SKhM isothermally hardened in a fluidized bed can be recommended for the production of farm machinery blades with higher quality than those made at the present time.

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Literature cited

  1. 1.

    A. P. Baskakov et al., Use of Furnaces with High-Temperature Fluidized Bed for Heating Metal [in Russian], Byulleten' TsNIIChERMET, No. 19 (615) (1969), p. 51.

  2. 2.

    A. P. Baskakov et al., "Use of submerged burners to obtain a low-temperature fluidized bed," Tsvetnye Metally, No. 2, 66 (1972).

  3. 3.

    A. P. Baskakov et al., "Furnace for tempering steel wire in a fluidized bed heated with submerged burners," Stal', No. 12, 1134 (1972).

  4. 4.

    A. P. Gulyaev, Heat Treatment of Steel [in Russian], Mashgiz, Moscow (1953), pp. 205, 260.

  5. 5.

    I. I. Novikov, Theory of Heat Treatment in Metals [in Russian], Metallurgiya, Moscow (1974), p. 274.

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    V. D. Sadovskii, "Transformation of austenite to martensite," in: Phase Transformations in Iron-Carbon Alloys [in Russian], Mashgiz, Sverdlovsk (1950), p. 65.

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    V. Ya. Zubov and A. P. Migachev, "Instrument for testing cutting instruments," in: Improvement of Technology and Means of Mechanization [in Russian], Sel'khozinstitut, Sverdlovsk (1974), p. 56.

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Additional information

S. M. Kirov Ural Polytechnical Institute, Artinskii Mechanical Factory. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 11, pp. 60–62, November, 1977.

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Zayarov, A.S., Rybakova, M.F., Vitt, O.K. et al. Heat treatment of tool steels in fluidized bed. Met Sci Heat Treat 19, 979–982 (1977).

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  • Oxidation
  • Heat Treatment
  • Tool Steel
  • Input Factor
  • Farm Machinery