Non-Uniform Deformation of Slab during Heavy Reduction Process

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Abstract:

The bulge deformation of slab narrow face can cause surface defects of hot rolled steel plate. A three-dimensional bulging model, was proposed to simulate the evolution of deformation behavior of the continuous casting slab during heavy reduction (HR). The model was taken to investigate the non-uniform deformation of slab during HR process. The bulging deformation behavior of the slab was then calculated in one segment included seven pairs of rollers. To improve the edge defect on hot-rolled steel plates, the relationship between the reduction amount and bulge deformation of slab narrow face has been investigated.

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Solid State Phenomena (Volume 331)

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67-72

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April 2022

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© 2022 Trans Tech Publications Ltd. All Rights Reserved

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[1] N. Zong, Y. Liu, S. Ma, W. Sun, T. Jing, H. Zhang, A review of chamfer technology in continuous casting process. Metall. Res. Technol. 204 (2020) 204-219.

DOI: 10.1051/metal/2020014

Google Scholar

[2] N. Zong, T. Jing, Y. Liu, Comparative studies on a chamfer technology and a convex roll technology during the soft reduction process. Archives of Metallurgy and Materials. 66 (2021) 819-829.

Google Scholar

[3] N. Zong, Y. Liu, H. Zhang, X. Yang, Application of Chamfered Slab Technology to Reduce Straight Edge Seam Defects of Non-oriented Silicon Electrical Steel Generated during Flexible Thin Slab Casting Process. Metall. Res. Technol. 114 (2017) 311-320.

DOI: 10.1051/metal/2016073

Google Scholar

[4] N. Zong, Y. Liu, H. Zhang, Application of chamfered narrow face mold technology to reduce longitudinal surface crack defects of hyperperitectic steel generated during flexible thin slab casting process. Metall. Res. Technol. 114 (2017) 413-421.

DOI: 10.1051/metal/2017030

Google Scholar

[5] N. Zong, J. Huang, Y. Liu, T. Jing, Z. Lu, Controlling center segregation and shrinkage cavities without internal crack in as-cast bloom of steel GCr15 induced by soft reduction technologies, Ironmaking& Steelmaking, 2020,.

DOI: 10.1080/03019233.2020.1848302

Google Scholar

[6] N. Zong, H. Zhang, Y. Liu, M. Wang, Application of a chamfer slab technology to reduce internal cracks of continuous casting bloom during soft reduction process. Metall. Res. Technol. 116 (2019) 608-619.

DOI: 10.1051/metal/2018112

Google Scholar

[7] N. Zong, H. Zhang, Y. Liu, Z. Lu, Analysis of the off-corner subsurface cracks of continuous casting blooms under the influence of soft reduction and controllable approaches by a chamfer technology. Metall. Res. Technol. 116 (2019) 310-319.

DOI: 10.1051/metal/2018102

Google Scholar

[8] N. Zong, H. Zhang, Y. Liu, Z. Lu, Analysis on morphology and stress concentration in continuous casting bloom to learn the formation and propagation of internal cracks induced by soft reduction technology. Ironmaking & Steelmaking. 46 (2019) 872-885.

DOI: 10.1080/03019233.2018.1556911

Google Scholar

[9] N. Zong, J. Huang, J. Liu, S. Ma, T. Jing, Analysis of internal cracks in high carbon casting bloom induced by soft reduction process and its improvement using numerical simulations and industrial experiment. Metall. Res. Technol. 118 (2021) 102-110.

DOI: 10.1051/metal/2020079

Google Scholar

[10] N. Zong, S. Ma, W. Sun, T. Jing, Z. Lu, Alleviation of internal cracks in continuous casting bloom of steel 100Cr6 induced by soft reduction process. La Metallurgia Italiana.11/12 (2020) 14-22.

Google Scholar

[11] X. Zhao, J. Zhang, S. Lei, Y. Wang, The position study of heavy reduction process for improving centerline segregation or porosity with extra-thickness slabs. Steel Res. Int. 85 (2014) 645-658.

DOI: 10.1002/srin.201300192

Google Scholar

[12] Z. Xu, X. Wang, M. Jiang, Investigation on improvement of center porosity with heavy reduction in continuously cast thick slabs. Steel Res. Int. 88 (2017) 231-242.

DOI: 10.1002/srin.201600061

Google Scholar

[13] S. Koric, B. Thomas, Thermo-mechanical models of steel solidification based on two elastic visco-plastic constitutive laws. J. Mater. Process. Technol. 197 (2007) 408-418.

DOI: 10.1016/j.jmatprotec.2007.06.060

Google Scholar

[14] L, Xu. Research on the intensive cooling for secondary cooling zone and surface microstructure controlled of ultra-thick slab by continuous casting. Master's Thesis, Center Iron and Steel Research Institute, Beijing, China, (2017).

Google Scholar