Phenomena at three-phase electroslag remelting

Phenomena at three-phase electroslag remelting

The electroslag remelting (ESR) process is widely used to produce high-quality ingots and billets for high-alloyed steels and alloys. Both the single-phase and three-phase alternating current diagram with bifilar and monofilar connection are in use for heavy ingot manufacturing. The numerical simula...

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Bibliographic Details
Published in:China foundry Vol. 18; no. 6; pp. 557 - 564
Main Authors: Liu, Zhong-li, Medovar, Lev, Stovpchenko, Ganna, Petrenko, Volodymyr, Sybir, Artem, Volchenkov, Yev
Format: Journal Article
Language:English
Published: Singapore Springer Singapore 01-11-2021
Foundry Journal Agency
Yantai University,Yantai 264005,Shandong,China%E.O.Paton Electric Welding Institute,Kyiv 03180,Ukraine%National metallurgical academy of Ukraine,Dnipro 49600,Ukraine
Subjects:
Alloys
Degassing of metals
Engineering
Furnaces
Machines
Manufacturing
Materials Engineering
Metallic Materials
Metals
Numerical analysis
Processes
Research & Development
China
A
TP391.9
simulation
monofilar
bifilar
heavy ingot
electroslag remelting
three-phase circuit
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Summary:The electroslag remelting (ESR) process is widely used to produce high-quality ingots and billets for high-alloyed steels and alloys. Both the single-phase and three-phase alternating current diagram with bifilar and monofilar connection are in use for heavy ingot manufacturing. The numerical simulation of the three-phase bifilar circuit for the 120 t three-phase bifilar six-electrode ESR furnace at different variants of electric connection was presented and discussed. At the bifilar diagram of power supply, the geometrical location of electrodes in a mould holds critical importance for performances: the close location of bifilar pair electrodes provides the highest heat productivity, but the equidistant location of electrodes gives a much more uniform heat distribution. The monofilar mulit-electrode diagram of three-phase connection without phase shift shows the most uniform distribution of potential and heat generation as well as a favorable magnetic field that makes this kind the most promising for providing a high quality of heavy ingots.
ISSN:1672-6421
2365-9459
DOI:10.1007/s41230-021-0125-8