Prediction and analysis of temperature distribution, during the multi-pass hot rolling of nuclear power zirconium alloy under different rolling schedules

Cao, Yuan; Cao, Jian; Gao, Yingqi; Li, Fang; Wang, Ben; Zhang, Pengfei

doi:10.1007/s00170-022-09102-6

Cited by 3 publications

(1 citation statement)

References 29 publications

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“…The model can predict the rolling process temperature field for the high-grade non-oriented silicon steel in five stands tandem cold rolling. Cao et al [12] also established a temperature prediction model for nuclear zirconium alloy plate rolling process by using this method. Li et al [13] established a finite difference model of the cooling process of hot rolled strip according to the Fourier heat equation, which improved the control accuracy of the cooling temperature on the runout table.…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional temperature field distribution of thin medium plate during finishing rolling and its effect on shape control

Ma,

Li,

Kong

et al. 2024

Preprint

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In order to investigate the relationship between temperature distribution and shape control for thin medium plate, based on the production of a 3800 mm finishing mill, a high-precision temperature field prediction model of the rolled piece was established using the control volume heat balance method. The model is used to calculate the temperature field in the thickness, width, and length directions of the piece, and the results are used to analyze its effect on the shape control. By comparing the calculated results with the measured data, it can be seen that the deviation of the calculated results of this model was within 1%. Firstly, considering the large temperature difference in the thickness direction of the piece, an optimization coefficient of each pass for rolling force calculation was proposed to improve the accuracy. Secondly, the influence of the temperature difference in the width direction on the wedge shape of the piece is quantitatively analyzed, and the control standard of the temperature difference within 20 °C was proposed. Thirdly, the influence of the temperature difference in the length direction on the shape control of the piece is quantitatively analyzed, and the tail edge wave problem was solved by increasing the rolling temperature and limiting the length of the piece. The above research has been applied in production, and the shape quality of different specifications of plate has been improved.

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Section: Introductionmentioning

confidence: 99%