Numerical Simulation of Thermal Field of Work Roll during Top Side-pouring Twin-roll Casting of Steel

Zhou

et al. 2021

Preprint

Self Cite

Three-dimensional finite element modeling of twin-roll strip casting (TRC) and the top side-pouring twin-roll casting (TSTRC) were carried out to predict the temperature, flow, and turbulence kinetic energy of the two processes. The cellular automaton–finite element (CA-FE) model was established to predict the solidification structure of the two processes. By comparing the two processes, it was found that the temperature field distribution in the micro-melt pool during the TSTRC process was uniform. The temperature distribution in the width direction was also more uniform, and the stirring in the micro melt-pool was intense. An equiaxed crystal structure uniformly distributed in the width direction was obtained, and a thin strip of good quality was obtained. Not only the near-final forming of the thin strip was realized, but also the near-final forming of the solidified structure was realized. By comparing the experimental process of TSTRC with the simulation, it was found that the simulation and experimental results were in good agreement, which verified the feasibility and accuracy of the simulation.

Section: Boundary Conditionsmentioning

confidence: 92%

A Top Side-Pouring Twin-Roll Caster for 3.0 Wt.% Si Steel

Zhou

et al. 2021

Preprint

Self Cite

“…℃. The value range of the heat transfer coe cient between the metal and the roller is between 0.8×10 4~2 .0×10 4 W/ m 2 .℃ [22], and the heat transfer coe cient in this paper is 1×10 4 W/ m 2 .℃. Table 1 shows the casting parameters and physical properties of 6.5 wt.% Si steel.…”

Section: Boundary Conditionsmentioning

confidence: 98%

Numerical Simulation of The Top Side-Pouring Twin-Roll Casting of 6.5 wt.% Si Steel Process

You

et al. 2021

Preprint

Self Cite

Using the commercial finite element software ProCAST to predict the temperature field, the flow field, the turbulent kinetic energy, and melt-pool outlet temperature of the top side-pouring twin-roll casting (TSTRC) of 6.5 wt.% Si steel process, and the cellular automaton–finite element (CA-FE) method was used to simulate the melt-pool outlet microstructure. The effect of different process conditions on the TSTRC process was investigated through numerical simulation and a processing technic appropriate for the production of 6.5 wt.% Si steel was obtained. Meanwhile, the influence of violent stirring in the melt-pool on the microstructure under different process conditions was evaluated. It was found that vigorous stirring in the melt-pool was conducive to formate the equiaxed crystal structure. Not only realized the near-final shape of the metal sheet, but also realized the near-final shape of the microstructure. Chose the proper process to experiment, and from comparing the simulation and the experiment, the simulation and experimental results were in good agreement, which verified the simulation's feasibility and accuracy.

“…℃. The value range of the heat transfer coe cient between the metal and the roller is between 0.8×10 4 ~2.0×10 4 W/ m 2 .℃ [22], and the heat transfer coe cient in this paper is 1×10 4 W/ m 2 .℃. Melt pool height (mm) 25-45…”

Section: Boundary Conditionsmentioning

confidence: 98%

Numerical simulation of the top side-pouring twin-roll casting of 6.5 wt.% Si steel process

Int J Adv Manuf Technol

Zhou

et al. 2021

Self Cite

Using the commercial nite element software ProCAST to predict the temperature eld, the ow eld, the turbulent kinetic energy, and melt-pool outlet temperature of the top side-pouring twin-roll casting (TSTRC) of 6.5 wt.% Si steel process, and the cellular automaton-nite element (CA-FE) method was used to simulate the melt-pool outlet microstructure. The effect of different process conditions on the TSTRC process was investigated through numerical simulation and a processing technic appropriate for the production of 6.5 wt.% Si steel was obtained. Meanwhile, the in uence of violent stirring in the meltpool on the microstructure under different process conditions was evaluated. It was found that vigorous stirring in the melt-pool was conducive to formate the equiaxed crystal structure. Not only realized the near-nal shape of the metal sheet, but also realized the near-nal shape of the microstructure. Chose the proper process to experiment, and from comparing the simulation and the experiment, the simulation and experimental results were in good agreement, which veri ed the simulation's feasibility and accuracy.