Automatic Welding, 2021, №11



2021 №11 (04)

DOI of Article 10.37434/as2021.11.05

2021 №11 (06)

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Avtomaticheskaya Svarka (Automatic Welding), #11, 2021, pp. 28-34

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

Yu.M. Lankin, V.G. Solovyov, V.G. Tyukalov, I.Yu. Romanova

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

ЕElectroslag welding (ESW) with wire electrodes with a bifilar diagram of power connection is not applied now. There is every reason to believe that such a connection diagram has even more advantages over the canonic two-electrode 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 canonic two-electrode diagram and by the bifilar diagram with equalizing wire and doubling of secondary voltage. Given are the results of comparison of both the ESW diagrams by energy consumption; regularities of heat evolution in the slag pool at the change of its geometrical parameters, coordinates of the points and extent of immersion of the electrodes, value of voltage applied to the electrodes and electrode feed rate were studied. 9 Ref., 2 Tabl., 9 Fig.
Keywords: electroslag welding, bifilar diagram, slag pool, metal pool, electric conductivity


Received: 13.09.2021

References

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