A 1D Analytical Model for Slag Infiltration during Continuous Casting of Steel under Non-Sinusoidal Mold Oscillation

Yang, Hyunjin

doi:10.3390/met10101389

Cited by 4 publications

(3 citation statements)

References 25 publications

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“…However, the positive strip time (t p ) was also limited by shortening the negative strip time (t n ). Compared with the sinusoidal oscillation mode, the non-sinusoidal oscillation had many advantages, such as reducing the t n , increasing the t p , reducing the depth of the oscillation mark, increasing mold powder consumption and improving the quality of the slabs [28,29].…”

Section: Introductionmentioning

confidence: 99%

Study on the Consumption Mechanism and Lubrication of Mold Powder Based on Non-Sinusoidal Oscillation Mode

Cao,

Liu,

Zhang

2024

Metals

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A two-dimensional mold model coupled multiphase flow, heat transfer, solidification and mold oscillation was established based on the casting parameters of the mold of plant. The accuracy of the model was verified by comparing the measured by plant and calculated mold powder consumption under the same casting conditions. The mechanism of mold powder consumption and lubrication was analyzed based on the non-sinusoidal oscillation mode, and the effect of non-sinusoidal oscillation parameters on mold powder consumption was discussed. Mold powder consumption was determined by the downward flow velocity of liquid mold powder and the thickness of liquid mold powder film, the liquid mold powder consumption decreased with the decrease of those. When the mold moved downward, the mold powder thickness and downward flow velocity decreased, the minimum mold powder consumption reached at the middle of the negative strip time, and the variation was to opposite when the mold moved upward, the maximum mold powder consumption appeared during the positive strip time. With the decrease of casting speed and modification ratio, and increase of oscillation frequency and oscillation amplitude, the mold powder consumption had the tendency to increase. The nonlinear regression equation was fitted by the Levenberg–Marquardt method combined with the universal global optimization method to evaluate mold powder consumption.

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Section: Introductionmentioning

confidence: 99%

Study on the Consumption Mechanism and Lubrication of Mold Powder Based on Non-Sinusoidal Oscillation Mode

Cao,

Liu,

Zhang

2024

Metals

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Section: Introductionmentioning

confidence: 99%

“…Numerous scholars have conducted extensive research on protective slag [7][8][9][10][11][12]. Yang [7] built a 1D analytical model for slag infiltration during continuous casting of steel to investigate the slag behavior in the mold-strand gap. The model showed that a converging slag film into the casting direction was required to open the mold-strand gap if compression was applied in between.…”

Section: Introductionmentioning

confidence: 99%

Flow and Influencing Factors of Coated Slag in Continuous Casting Mold

Du,

Wang,

Zheng

2023

Coatings

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In the continuous casting, the protective slag is coated on the surface of the molten steel, which is an important factor affecting the quality of the billet. The liquid slag layer on the surface of molten steel should be kept at an appropriate thickness to ensure a sufficient supply of liquid slag and to prevent slag from becoming entangled in the billet shell. Moreover, the consumption of protective slag should be appropriate to ensure stable liquid slag film thickness and uniform heat transfer between the casting billet and the mold. In this work, a two-dimensional numerical calculation model using volume of fluid method was established for the flow of protective slag, the Navier–Stokes equation was solved for the model, the consumption of protective slag during a vibration cycle was calculated, and the effects of factors such as casting speed, amplitude, and vibration frequency on the consumption of protective slag were explored. The results showed that when the casting speed increased from 1.2 m/min to 1.6 m/min, the consumption of protective slag per unit area decreased by about 4.76%, but the consumption of protective slag per unit length of the casting billet increased by about 26.98% within a vibration cycle. The consumption of protective slag per unit area and per unit billet length within a vibration cycle increased slightly with the increase of amplitude. The variation pattern of the consumption of protective slag with vibration frequency was not obvious. This model can provide theoretical basis and technical guidance for the design of protective slag, thereby improving the quality of steel billets in steel plants.

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Designing Non‐Newtonian Mold Powders and Optimization of Process for Continuous Casting of Billet

Yang

López

Vasallo

et al. 2021

steel research int.

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A 1D Analytical Model for Slag Infiltration during Continuous Casting of Steel under Non-Sinusoidal Mold Oscillation

Cited by 4 publications

References 25 publications

Study on the Consumption Mechanism and Lubrication of Mold Powder Based on Non-Sinusoidal Oscillation Mode

Study on the Consumption Mechanism and Lubrication of Mold Powder Based on Non-Sinusoidal Oscillation Mode

Flow and Influencing Factors of Coated Slag in Continuous Casting Mold

Designing Non‐Newtonian Mold Powders and Optimization of Process for Continuous Casting of Billet

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