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Metallurgist

, Volume 56, Issue 9–10, pp 672–678 | Cite as

Analysis of technologies used to make hollow ingots and prospects for their improvement

  • V. V. Nazaratin
  • O. A. Kobelev
  • M. V. Efimov
  • A. A. Selyutin
  • P. M. Yavtushenko
Article

The technologies that are used to make hollow ingots are analyzed. Their characteristic features are discussed along with their intrinsic advantages and disadvantages. A new technology that significantly alleviates the formation of defective regions in hollow ingots during their crystallization is proposed.

Keywords

forging ingot ingot mold hot top design method shrinkage defects axial porosity 

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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • V. V. Nazaratin
    • 1
  • O. A. Kobelev
    • 1
  • M. V. Efimov
    • 2
  • A. A. Selyutin
    • 2
  • P. M. Yavtushenko
    • 2
  1. 1.Scientific and Production Association Central Research Institute of Machine Building Technology (NPO TsNIITmash)MoscowRussia
  2. 2.Energomashspetsstal Company (EMSS)KramatorskUkraine

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