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A simulation method for the optimization of cooling water slot structure in slab continuous casting mold combined with submerged entry nozzle

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Abstract

The temperature field in the full 3D finite element mold model (FEMM) combined with submerged entry nozzle (SEN) (Full SEN-3D FEMM) is simulated by using Fluent of ANSYS 18.0 Package. The maximum heat flux on the heat face of mold copper plate obtained through this simulation is applied to the element model of the copper plate, and thermal stress and strain simulations on the copper plate and stainless back ones are conducted with Workbench of ANSYS 18.0 Package, confirming the reasonable designing factors for the water slot structure on the copper plate. The maximum heat flux on the wide and narrow heat faces of the copper plates is given on the initial shock areas of molten steel flux injected through SEN. With constant heat flux on the heat face, the more thickness of copper plate increases, the more the max and min temperatures increase, and the difference between them decreases. Elastic and plastic deformations on the copper plate are made during continuous casting (CC) process; the former occurs around water slots and the latter around heat face. The cooling water slots depths of mold copper plate must be designed for minimizing of elastic and plastic deformations.

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Data availability

The authors confirm that the data supporting the findings of this study are available within this article.

Code availability

The code that support the findings of this study are available from the corresponding author [Sang Chol Om], upon a reasonable request.

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Acknowledgements

The authors would like to express their gratitude to the editors, the authors of the references, and the reviewers for their helpful suggestions for improvement and publication of this paper.

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Authors and Affiliations

  1. Faculty of Materials Science and Technology, Kim Chaek University of Technology, 60 Kyogu, Pyongyang, Democratic People’s Republic of Korea

    Sang Chol Om, Dong Gil Kim, Chung Il Pak, Hak Yong Kim & Il Un Kim

Authors
  1. Sang Chol Om
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  2. Dong Gil Kim
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  3. Chung Il Pak
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  4. Hak Yong Kim
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  5. Il Un Kim
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Contributions

Sang Chol Om presented the idea about building of full 3D finite element mold model combined with submerged entry nozzle (SEN) (Full SEN-3D FEMM), differently with applying the heat flux density obtained by empirical formula reported in previous literatures to hot face of copper plate as constant, and obtained the optimum plan about the cooling water slot structure of mold copper plate, synthesizing the simulation results from the each simulation steps.

Dong Gil Kim determined the process parameters for continuous casting and the properties of each materials used for the abovementioned Full SEN-3D FEMM and suggested the heat resistance model including the coating and mold flux layer between the molten steel and the mold copper plate.

Chung Il Pak determined the structure, the dimension and the submerged depth of submerged entry nozzle (SEN) applied for Full SEN-3D FEMM.

Hak Yong Kim simulated the flow and temperature fields about Full SEN-3D FEMM using Fluent Program in ANSYS Package to get the data about the maximum heat flux density and temperature field on the heat face of mold copper plate.

Il Un Kim simulated the thermal stress and strain fields in the element model using Workbench Program in ANSYS Package applying the maximum heat flux density in the results obtained from the simulation about Full SEN-3D FEMM to the heat face on copper plate in the element one.

Corresponding author

Correspondence to Sang Chol Om.

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Om, S.C., Kim, D.G., Pak, C.I. et al. A simulation method for the optimization of cooling water slot structure in slab continuous casting mold combined with submerged entry nozzle. Int J Adv Manuf Technol 127, 3221–3237 (2023). https://doi.org/10.1007/s00170-023-11671-z

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