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Electric furnace for nitriding large crankshafts

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Conclusions

  1. 1.

    Electric furnaces with a movable chamber that provide continuous rotation of large crankshafts throughout the nitriding process can be used commercially.

  2. 2.

    The treatment of crankshafts in these furnaces makes it possible to eliminate the undesirable operations of hot straightening and grinding after nitriding.

  3. 3.

    The use of these furnaces leads to substantial savings due to considerable improvement in the operating characteristics of the crankshafts and the reduction of the manufacturing costs.

  4. 4.

    Electric furnaces of this type can also be used for heat treating (nitriding, tempering) other bodies of rotation.

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Literature cited

  1. 1.

    H. Kanno et al., Tutandzo,16, No. 7 (1963).

  2. 2.

    S. F. Yur'ev, Vestnik Metallopromyshlennosti, No. 5 (1939).

  3. 3.

    I. V. Kudryavtsev, I. B. Meerovich, et al., Metal. i Term. Obrabotka Metal., No. 10 (1963).

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Additional information

Vologdin All-Union Scientific-Research Institute of High-Frequency Current. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 8, pp. 15–19, August, 1970.

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Matin, Y.I., Meerovich, I.B. & Tsokurenko, M.G. Electric furnace for nitriding large crankshafts. Met Sci Heat Treat 12, 647–650 (1970). https://doi.org/10.1007/BF00654785

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Keywords

  • Furnace
  • Operating Characteristic
  • Electric Furnace
  • Considerable Improvement
  • Manufacturing Cost