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Uniform Secondary Cooling Pattern for Minimizing Surface Reheating of the Strand During Round Bloom Continuous Casting

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Abstract

A uniform secondary cooling pattern (USCP) for minimizing surface reheating of the strand is proposed herein, based on a two-dimensional model calibrated according to measured results. The calculated results reveal the following: appropriate extension of the secondary cooling zone significantly reduces longitudinal surface reheating of the strand; a 30° misalignment angle between two adjacent rows of nozzles in cooling zones II–V significantly reduces transverse strand surface reheating; appropriate reduction in the specific water rate significantly reduces surface reheating of the whole strand. Furthermore, a USCP was determined, including secondary cooling length of 6.07 m, misalignment angle of 30°, and specific water rate of 0.26 L kg−1. This USCP has been successfully applied in a steel plant.

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Acknowledgements

This work was financially supported by the National Natural Science Foundation of China (NSFC, Project Nos. 51374260, 51504048, and 51611130062).

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Authors and Affiliations

  1. College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, People’s Republic of China

    Helin Fan, Mujun Long, Sheng Yu, Dengfu Chen, Tao Liu, Huamei Duan & Huabiao Chen

Authors
  1. Helin Fan
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  2. Mujun Long
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  3. Sheng Yu
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  4. Dengfu Chen
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  5. Tao Liu
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  6. Huamei Duan
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  7. Huabiao Chen
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Corresponding authors

Correspondence to Mujun Long or Dengfu Chen.

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Fan, H., Long, M., Yu, S. et al. Uniform Secondary Cooling Pattern for Minimizing Surface Reheating of the Strand During Round Bloom Continuous Casting. JOM 70, 237–242 (2018). https://doi.org/10.1007/s11837-017-2679-x

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  • DOI: https://doi.org/10.1007/s11837-017-2679-x

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