Heat Transfer Coefficient Prediction by FEM in the Hot Strip Rolling

Rui Bin Mei; Chang Sheng Li; Xiang Hua Liu

doi:10.4028/www.scientific.net/AMR.415-417.1391

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 415-417Heat Transfer Coefficient Prediction by FEM in the...

Heat Transfer Coefficient Prediction by FEM in the Hot Strip Rolling

Abstract:

It is necessary to know the heat transfer intensity for predicting temperature distribution in the hot strip rolling process. The HTC (heat transfer coefficient) was usually obtained by the experiments and mathematical model. In this paper the HTC prediction was discussed based on the measured or target temperature by the proposed finite element method (FEM). The temperature evolution and HTC in the hot strip rolling process according to a certain plant were analyzed by the iteration calculation. The result shows that the HTC between strip and work roll was much more than the value in the air cooling and water cooling process. Furthermore, the HTC value is lower in the air cooling process compared with that of water cooling. The maximum and minimum value of HTC were about 1.5×10⁵ (W/m².K) and 80(W/m².K) respectively. The temperature in the rough rolling according to the predicted HTC has been solved and the calculated results have a good agreement to the meausred value. Therefore, the research could be used to control the temperature distribution accurately and optimize the parameters.

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Periodical:

Advanced Materials Research (Volumes 415-417)

Pages:

1391-1394

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.415-417.1391

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Online since:

December 2011

Authors:

Rui Bin Mei, Chang Sheng Li, Xiang Hua Liu

Keywords:

Finite Element Method (FEM), Hot Strip Rolling, HTC, Temperature

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