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Metallurgist

, Volume 57, Issue 9–10, pp 849–854 | Cite as

Introduction of Three-Stage Thermal Hardening Technology for Large Diameter Grinding Balls

  • V. G. Efremenko
  • E. S. Popov
  • S. O. Kuz’min
  • O. I. Trufanova
  • A. V. Efremenko
Article

Results are presented for experiments of development and assimilation of three-stage thermal hardening technology for rolled grinding balls 100 and 120 mm in diameter made from low-alloy steel grade (K76F, 75G2S) with the aim of increasing their hardness to the level of the 3rd group of DSTU 3499. Ball thermal hardening regime parameters, the hardness level achieved, and operating life are described.

Keywords

grinding balls steel thermal hardening quenching self-tempering hardness 

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • V. G. Efremenko
    • 1
  • E. S. Popov
    • 2
  • S. O. Kuz’min
    • 1
  • O. I. Trufanova
    • 2
  • A. V. Efremenko
    • 2
  1. 1.Azov State Technical UniversityDonetsk OblastUkraine
  2. 2.Azovstal Metallurgical CombineDonetsk OblastUkraine

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