Jie Li, Yan-hui Sun, Hang-hang An, and Pei-yuan Ni, Study on the shape of slab solidification end and its influence on the central-line segregation, Int. J. Miner. Metall. Mater. https://doi.org/10.1007/s12613-020-2089-x
Cite this article as:
Jie Li, Yan-hui Sun, Hang-hang An, and Pei-yuan Ni, Study on the shape of slab solidification end and its influence on the central-line segregation, Int. J. Miner. Metall. Mater. https://doi.org/10.1007/s12613-020-2089-x
Research Article

Study on the shape of slab solidification end and its influence on the central-line segregation

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  • Received: 25 March 2020Revised: 3 May 2020Accepted: 6 May 2020Available online: 9 May 2020
  • A solidification model of a continuous casting slab with non-uniform cooling condition was established with the ProCAST software. The model was verified by the results of the nail shooting tests and the infrared temperature measurement equipment. It was found that the final solidification position was 220 to 440 mm away from the edge of the slab width for 200 mm × 2300 mm section based on the simulation results. In addition, four characteristic parameters were defined to evaluate the uniformity of the shape of slab solidification end. Then the effects of casting speed, superheat and secondary cooling strength on these four parameters were discussed. Moreover, the central-line segregation of slab produced with and without the soft reduction process were investigated. The results show that, the transverse flow of molten steel with low solid fraction had an important effect on the central-line segregation morphology under the soft reduction.
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