Experimental Validation and Numerical Analysis of the Swirling Flow in a Submerged Entry Nozzle and Mold by Using a Reverse TurboSwirl in a Billet Continuous Casting Process

Swirling flow in an immersion nozzle is effective on improving quality of casting block and casting speed in continuous casting process of steel. However, a refractory swirl blade installed in the nozzle is liable to cause clogging, which limit the application of the process. In this study a new process is proposed, that is a rotating electromagnetic field is set up around an immersion nozzle to induce a swirling flow in it by Lorentz force. New types of swirling flow electromagnetic generator are proposed and the effects of the structure of the generator, the coil current intensity and frequency on the magnetic field and on the flow field in the immersion nozzle are numerically analyzed.

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Inclusions, lining materials and nozzle clogging during middle carbon steel billet continuous casting process

Revue de Métallurgie ◽

10.1051/metal:2008017 ◽

2008 ◽

Vol 105 (2) ◽

pp. 72-79 ◽

Cited By ~ 4

Author(s):

Shihong Liu ◽

Xinhua Wang ◽

Xiangjun Zuo ◽

Yufeng Wang ◽

Lifeng Zhang ◽

...

Keyword(s):

Carbon Steel ◽

Continuous Casting ◽

Casting Process ◽

Continuous Casting Process ◽

Nozzle Clogging ◽

Steel Billet ◽

Billet Continuous Casting

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The Fluid Flow and Solidification Phenomenon in Billet Continuous Casting Process with Mold and Final Electromagnetic Stirrings

Advances in the Science and Engineering of Casting Solidification ◽

10.1007/978-3-319-48117-3_11 ◽

2015 ◽

pp. 81-91

Author(s):

Dongbin Jiang ◽

Miaoyong Zhu

Keyword(s):

Fluid Flow ◽

Continuous Casting ◽

Casting Process ◽

Continuous Casting Process ◽

Billet Continuous Casting ◽

Solidification Phenomenon

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Numerical Simulation of Fluid Flow, Heat Transfer, Species Transfer, and Solidification in Billet Continuous Casting Mold with M-EMS

Metals ◽

10.3390/met9010066 ◽

2019 ◽

Vol 9 (1) ◽

pp. 66 ◽

Cited By ~ 10

Author(s):

Wenjie Zhang ◽

Sen Luo ◽

Yao Chen ◽

Weiling Wang ◽

Miaoyong Zhu

Keyword(s):

Fluid Flow ◽

Continuous Casting ◽

Swirling Flow ◽

Casting Process ◽

Longitudinal Section ◽

Current Intensity ◽

Continuous Casting Mold ◽

Casting Mold ◽

Billet Continuous Casting ◽

Negative Segregation

Electromagnetic stirring in mold (M-EMS) has been widely used in continuous casting process to improve the solidification quality of the steel strand. In the present study, a 3D multi-physical-field mathematical model was developed to predict the macro transport phenomena in continuous casting mold with M-EMS using ANSYS commercial software, and was adopted to investigate the effect of current intensity (0, 150, 200, and 240 A) on the heat, momentum, and species transports in the billet continuous casting mold with a size of 160 mm × 160 mm. The results show that when the M-EMS is on, the horizontal swirling flow appears and shifts the high-temperature zone upward. With the increase of current intensity, two swirling flows form on the longitudinal section of continuous casting mold and become more intensive, and the flow velocity of the molten steel at the solidification front increases. Thus, the wash effects of the fluid flow on the initial solidified shell become intensive, resulting in a thinner shell thickness at the mold exit and a significant negative segregation of carbon at the billet subsurface.

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