| 2025 №02 (02) |
DOI of Article 10.37434/sem2025.02.03 |
2025 №02 (04) |
"Suchasna Elektrometallurgiya" (Electrometallurgy Today), 2025, #2, 20-25 pages
Studies of hydrodynamic processes at the crystallization of ingots in a mold under conditions of electroslag heating and stirring of the metal pool
I.V. Protokovilov, V.V. Barabash
E.O. Paton Electric Welding Institute of the NAS of Ukraine 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: ab38@paton.kiev.uaAbstract
The results of physical simulation of hydrodynamic processes at the crystallization of ingots in a casting mold under conditions of electroslag heating and stirring of the metal pool by a gas jet are presented. The studies were carried out on a cold transparent model that simulates the crystallization of a 205-ton steel ingot in a casting mold and allows visualizing hydrodynamic processes in the metal pool and forming a solid phase. New experimental data on the structure of hydrodynamic flows at various options of stirring the metal pool by a gas jet were obtained. It is shown that the use of a gas jet allows creating toroidal melt flows with upward flows spreading from the gas-supplying nozzle and downward flows near the walls of the casting mold. It was established that for effective stirring of the entire volume of the metal pool and to affect the crystals growing on the crystallization front, it is advisable to place the gas tuyere along the axis of the pool and choose its immersion depth within 70...80 % of the pool depth. 10 Ref., 2 Tabl., 6 Fig.
Keywords: ingot, mold, physical simulation, hydrodynamics, electroslag heating, gas jet, stirring
Received: 19.02.2025
Received in revised form: 03.03.2025
Accepted: 10.04.2025
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