|About this Abstract
||Liquid Metal Processing & Casting Conference (LMPC 2019)
||Liquid Metal Processing & Casting
||Current Density and Electrode Tip Shape in an Electroslag Remeleting Process with Two-series Connected Electrodes
||Baokuan Li, Xuechi Huang
|On-Site Speaker (Planned)
An electroslag remelting process (ESR) with the two series-connected electrodes has the advantage of little inductance, lower power consumption and high melting rate, which is used to produce large-scale or rectangular ingot. A transient three-dimensional multi-physical field model has been developed to understand the two-phase flow and heat transfer of slag and liquid metal under the effect of electromagnetic field in ESR with the two series-connected electrodes. The consumable mechanism of electrode and examine the effect of operating parameters such as current density and immersion depth on the flow field and electrode tip shape. The results show the main part of current is through the slag cap and little enters into ingot in two series-connected electrodes ESR system. The maximum joule heat power density is located at the interface of slag and electrodes, and decrease with the increasing of the electrodes immersion depth. The averaged joule heat power density increases with reducing of slag cap thickness. The variation of electrode tip shape is connected with distribution of current density and heat-power density, and the consumable rate in electrode tip surface in slap cap is proportional to the local heat-power density.
||Definite: At-meeting proceedings