Basic Study on Flow Behavior of Molten Steel in a Continuous Casting Machine in the Presence of Static Magnetic Field Parallel to the Slab Width Direction

Morishita, Masafumi; Kogita, Masahiko; Nakaoka, Takehiro; Miyake, Toshiya

doi:10.2355/tetsutohagane1955.87.4_167

Cited by 3 publications

(2 citation statements)

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“…different physical models were employed to study the fluid flow-related phenomena inside the caster mold under EMBr, including using low melting point metals/ alloys like mercury, [7,14,15,[26][27][28] tin, [29] gallium, [30] and Bi-Pb-Sn. [31] A water model was also established to visualize the fluid flow and the braking effect using a porous block.…”

mentioning

confidence: 99%

Fluid Flow-Related Transport Phenomena in Steel Slab Continuous Casting Strands under Electromagnetic Brake

Wang

Zhang

2011

Metall Mater Trans B

104

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In the current study, a three-dimensinal (3D) numerical model is built to investigate the effect of a local-type electromagnetic brake (EMBr) on the fluid flow, heat transfer, and inclusion motion in slab continuous casting strands. The results indicate that the magnetic force affects the jet characteristics, including jet angle, turbulent kinetic energy, and its dissipation rate. To reduce the top surface velocity and stabilize the top surface, the magnetic flux intensity should be larger than a critical value. With a 0.39 T magnetic flux intensity, the top surface velocity and its fluctuation can be well controlled, and less slag is entrained. The motion of argon bubbles is also studied. More bubbles, especially >2.0-mm bubbles, escape from the top surface between the mold submerged entry nozzle (SEN) and 1 4 width for the case with a 0.39 T EMBr. This may push the top slag away and create an open ''eye'' on the top slag. Small bubbles (£1 mm) tend to escape from one side of wide face no matter with or without EMBr, which is induced by the swirl flow from the SEN outport. EMBr has a little effect on the overall removal fraction of inclusions; however, it affects the local distribution of inclusion in the slab. With EMBr, more inclusions accumulate the region just below the surface, thus a worse subsurface quality, whereas the inner quality of the slab is better than that without EMBr. For heat transfer in the mold, the heat flux on the narrow face and the area of possible break-out zones can be reduced by using EMBr. Prevention of bias flow and/or asymmetrical flow in mold by EMBr is also concluded.

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mentioning

confidence: 99%

Fluid Flow-Related Transport Phenomena in Steel Slab Continuous Casting Strands under Electromagnetic Brake

Wang

Zhang

2011

Metall Mater Trans B

104

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“…Therefore, there are a lot of studies that deal with the molten steel flow in a mold under a magnetic field. [13][14][15][16][17][18][19][20] It is reported that argon gas is able to change the molten steel flow pattern in a mold due to the difference of the specific gravity [21][22][23][24][25][26][27] and causes a fluctuation at the free surface. Because of that, some studies treating the electromagnetic force take argon gas into consideration.…”

Section: Numerical Simulation Of Molten Steel Flow Under a Magnetic Fmentioning

confidence: 99%

Numerical Simulation of Molten Steel Flow under a Magnetic Field with Argon Gas Bubbling in a Continuous Casting Mold

Kubo

Ishii

Kubota³

et al. 2004

ISIJ International

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Molten Steel Flow Control under Electromagnetic Level Accelerator in Continuous Casting Mold

Kubo

Kubota²,

Suzuki³

et al. 2007

ISIJ Int.

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Basic Study on Flow Behavior of Molten Steel in a Continuous Casting Machine in the Presence of Static Magnetic Field Parallel to the Slab Width Direction

Cited by 3 publications

References 0 publications

Fluid Flow-Related Transport Phenomena in Steel Slab Continuous Casting Strands under Electromagnetic Brake

Fluid Flow-Related Transport Phenomena in Steel Slab Continuous Casting Strands under Electromagnetic Brake

Numerical Simulation of Molten Steel Flow under a Magnetic Field with Argon Gas Bubbling in a Continuous Casting Mold

Molten Steel Flow Control under Electromagnetic Level Accelerator in Continuous Casting Mold

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