The Paton Welding Journal, 2021, №11



2021 №11 (03)

DOI of Article 10.37434/tpwj2021.11.04

2021 №11 (05)

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The Paton Welding Journal, 2021, #11, 22-28 pages

Comparison of the processes of electroslag welding at power connection by mono- and bifilar circuits

yu.M. lankin, V.G. Soloviov, V.G. Tyukalov, I.yu. Romanova

E.O. Paton Electric Welding Institute of the NAS of Ukraine 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: office@paton.kiev.ua

Abstract
Electroslag welding (ESW) with wire electrodes with a bifilar circuit of power connection is not applied now. There is every reason to believe that such a connection circuit has even more advantages over the monofilar ESW. Therefore, additional special investigations of the process of bifilar ESW are required. A comparison is given of the process of electroslag welding at power connection by the monofilar circuit and by the bifilar circuit with equalizing wire and doubling of secondary voltage. The results of comparison of both the ESW circuits by energy consumption are given; regularities of heat evolution in the slag pool at the change of its geometrical parameters, coordinates of the points and depth of immersion of the electrodes, value of voltage applied to the electrodes and electrode feed rate were studied.
Keywords: electroslag welding, bifilar circuit, slag pool, metal pool, electric conductivity

Received 13.09.2021
Accepted: 29.11.2021

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