Mathematical simulation of the electroslag casting of hollow ingot with liquid metal

Li Chun Zheng, Yan Wu Dong, Zhou Hua Jiang, Wan Ming Li

Research output: Contribution to journalArticle

Abstract

A 3D quasi-steady state mathematical model for the electroslag casting of hollow ingot with liquid metal was developed and then solved with the method of sequential coupling using commercial software ANSYS and CFX to obtain the distributions of electric, magnetic, temperature and flow fields. The calculation results show that the distributions of electric, Joule heat, magnetic, temperature and flow fields in the slag pool are different from those obtained by conventional electroslag remelting, which is attributable to the use of a current conductive mold. The high temperature region is near the outer mold, far from the slag-metal interface, with the highest temperature up to 2113 K. There are two vortexes in the slag pool, and the slag is driven mainly by buoyancy, with the maximum velocity of slag being 0.068 m·s -1. The shape of molten metal pool is like a shallow dish, which is beneficial to solidification quality of hollow ingots.

Original languageEnglish
Pages (from-to)1162-1166
Number of pages5
JournalDongbei Daxue Xuebao/Journal of Northeastern University
Volume33
Issue number8
Publication statusPublished - 2012 Aug 1

Keywords

  • Electric field
  • Electroslag casting with liquid metal
  • Flow field
  • Hollow ingot
  • Magnetic field
  • Temperature field

ASJC Scopus subject areas

  • Engineering(all)
  • Computer Science Applications
  • Applied Mathematics

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