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Research on droplet formation and dripping behavior during the electroslag remelting process

  • Yu-long Cao
  • Yan-wu DongEmail author
  • Zhou-hua JiangEmail author
  • Hai-bo Cao
  • Dong Hou
  • Qian-long Feng
Article

Abstract

A better understanding of droplet formation and dripping behavior would be useful in the efficient removal of impurity elements and nonmetallic inclusions from liquid metals. In the present work, we developed a transparent experimental apparatus to study the mechanisms of droplet formation and the effects of filling ratio on droplet behavior during the electroslag remelting (ESR) process. A high-speed camera was used to clearly observe, at small time scales, the droplet formation and dripping phenomenon at the slag/metal interface during a stable ESR process. The results illustrate that a two-stage process for droplet formation and dripping occurs during the ESR process and that the droplet diameter exhibits a parabolic distribution with increasing filling ratio because of the different shape and thermal state of the electrode tip. This work also confirms that a relatively large filling ratio reduces electricity consumption and improves ingot quality.

Keywords

electroslag remelting droplets dripping physical simulation 

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Copyright information

© University of Science and Technology Beijing and Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  1. 1.School of Materials and MetallurgyNortheastern UniversityShenyangChina

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