Improvement of Built-In Electromagnetic Stirring in the Molds of Bloom Continuous-Casting Machines

Шахов, С. И.; Вдовин, К. Н.; Kerimov, R. I.; Rogachikov, Yu. M.; Shakhov, Dmitry

doi:10.1007/s11015-020-01010-y

Cited by 11 publications

(5 citation statements)

References 3 publications

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“…The use of modern types of increasing heat transfer from liquid metal is increasing. This method primarily includes electromagnetic stirring [27].…”

Section: Increased Thermal Conductivitymentioning

confidence: 99%

Current state of application of crystallizer liners in CCMs and tasks of increasing their efficiency: review

Gorobchenko,

Kovalev,

Sokolova

et al. 2024

Third International Scientific and Practical Symposium on Materials Science and Technology (MST-III 2023)

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The article provides a review of the current state of the art of using mold sleeves in continuous casting machines. It is shown that continuous casting technology continues to actively develop. The target requirements that mold sleeves must provide include thermal conductivity and heat and wear resistance. The main achievements in the field of increasing thermal conductivity and heat and wear resistance are analyzed. It is shown that many of the methods used are already exhausted, and new approaches are required based on the study of deep properties, in particular the structural and lattice thermal conductivity of copper. As a first step, their calculations and modeling can be carried out.

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“…The use of modern types of increasing heat transfer from liquid metal is increasing. This method primarily includes electromagnetic stirring [27].…”

Section: Increased Thermal Conductivitymentioning

confidence: 99%

Current state of application of crystallizer liners in CCMs and tasks of increasing their efficiency: review

Gorobchenko,

Kovalev,

Sokolova

et al. 2024

Third International Scientific and Practical Symposium on Materials Science and Technology (MST-III 2023)

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“…The system of equations (3,4,5,6) was solved numerically in accordance with the numerical scheme and algorithm described in [14,16].…”

Section: Incompressibility Equationmentioning

confidence: 99%

“…More and more articles and documents are being published in the scientific literature, including patents, related to the development of new and improvement of existing methods of molten metal pouring and mixing in the continuous-casting machine mold as well as devices for process implementation [1,2,3]. Other innovative solutions and practical results for molten metal pouring and mixing in the continuous-casting machine mold are reflected in [4][5][6][7][8][9]. Experimental studies of the molten metal flow in a continuous-casting machine mold is a time-consuming and complex process demanding much effort.…”

Section: Introductionmentioning

confidence: 99%

Modeling of Molten Metal Flows in a Continuous-Casting Machine Mold at Free Rotation of the Floating Closed-Bottom Nozzle

Odinokov

Evstigneev

Dmitriev

et al. 2022

KEM

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Currently, mathematical modeling applying numerical methods is widely used in the study of metallurgical processes, including metal casting processes in continuous-casting machines. The authors developed a new technology and device for casting metal into a continuous-casting machine mold and metal mixing using the effect of a rotating closed-bottom submerged nozzle with eccentric holes. The theoretical study of processes of mold filling with molten metal was carried out applying a proven numerical method and a special software package. A calculation program was developed based on the numerical schemes and algorithms. The results of calculating metal casting into a rectangular mold are presented as an example. The calculation results are provided in the form of molten metal flow patterns in various sections of the mold.

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“…The behaviors of heat and mass transfer at the solid-liquid interface are essential factors during the continuous casting, which affects the quality of final product. With the rapid development of continuous casting in recent years, the electromagnetic stirring (EMS) can transfer heat and kinetic energy without direct contact with molten steel, which is widely used in continuous casting, [1][2][3][4][5][6][7] semisolid casting, [8] and directional solidification processes. Due to the effect of EMS on improving the solidification structure of billet, reducing the superheat of molten steel, and reducing the defects of center segregation [9,10] and porosity, [11] it has been widely concerned and studied by researchers.…”

Section: Introductionmentioning

confidence: 99%

Study on Stirring Effect of Spiral Magnetic Field in Continuous Casting of Round Blooms

Zhang,

Xu,

Lei

et al. 2023

steel research int.

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In this paper, for the continuous casting of round blooms with strand electromagnetic stirring, the effects of rotating magnetic field (RMF) and spiral magnetic field (SMF) on the electromagnetic, fluid flow, heat transfer, solidification and macrostructure were investigated by numerical simulation and industrial experiments, respectively. The results show that the molten steel flows in a spiral shape along the casting direction with the RMF and SMF. Due to the influence of secondary flow caused by electromagnetic stirring (EMS), and the zone of high velocity of molten steel accounts for 13.7% of the whole stirring range with the RMF. The SMF has a strong stirring effect in the whole range of secondary flow, the zone of high velocity of molten steel accounts for 49.1% of the whole stirring range, and the liquid fraction of the SMF at the liquid core is also lower. The results of the industrial experiments prove that the SMF has a wider stirring depth than the RMF, and the center crack range is significantly reduced.This article is protected by copyright. All rights reserved.

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Improvement of Built-In Electromagnetic Stirring in the Molds of Bloom Continuous-Casting Machines

Cited by 11 publications

References 3 publications

Current state of application of crystallizer liners in CCMs and tasks of increasing their efficiency: review

Current state of application of crystallizer liners in CCMs and tasks of increasing their efficiency: review

Modeling of Molten Metal Flows in a Continuous-Casting Machine Mold at Free Rotation of the Floating Closed-Bottom Nozzle

Study on Stirring Effect of Spiral Magnetic Field in Continuous Casting of Round Blooms

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