The Paton Welding Journal, 2022, №06



2022 №06 (05)

DOI of Article 10.37434/tpwj2022.06.06

2022 №06 (07)

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The Paton Welding Journal, 2022, #6, 41-48 pages

Effect of deformation of molten metal droplets on their motion and heating in liquid slag

I. Krivtsun¹, V. Sydorets¹, G. Stovpchenko¹, G. Polishko¹, A. Sybir², L. Medovar¹

¹E.O. Paton Electric Welding Institute of the NAS of Ukraine 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: office@paton.kiev.ua
²National Metallurgical Academy of Ukraine 4 Gagarin Prosp., 49600, Dnipro, Ukraine

Abstract
The mathematical models describing motion and heating of molten metal droplets in a liquid slag layer at the process of traditional electroslag remelting have been developed, assuming that the droplets have a spherical shape or deform to a spheroids flattened in their movement direction. The deformation of metal droplets impacts the velocity of their motion, making more efficient their heating while falling through the molten slag layer because of the bigger midsection and surfase areas of the deformed droplets at the same volume and mass. The differences between the predicted characteristics of motion and heat up of spherical and deforming droplets in the slag layer are more significant for the droplets of large size.
Keywords: electroslag remelting; mathematical modeling; consumable electrode; droplets; motion; deformation; heating

Received: 07.07.2022
Accepted: 15.08.2022

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