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首页> 外文期刊>Journal of Materials Engineering and Performance >Analysis of Asymmetrical Hot Strip Rolling by the Slab Method
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Analysis of Asymmetrical Hot Strip Rolling by the Slab Method

机译：板坯法对不对称热轧带钢的分析

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摘要

Two analytical models based on the slab method are proposed to examine the behavior of sheet at the roll gap during the asymmetrical hot strip rolling process. In model I, the effect of shear stress in vertical plane at the roll gap is considered, whereas this effect is neglected in model II. Neutral points between rolls and strip, rolling pressure distributions along the contact art length of rolls, rolling forces, and rolling torques can be calculated easily by these proposed analytical models. The results including rolling pressure distributions, rolling forces, and rolling torques by both models are compared. The rolling pressure distribution predicted by model I shows that a "pressure well" develops in the cross shear region. On the other hand, no "pressure well" is predicted in model II. Furthermore, the rolling forces predicted by model I are always lower than those measured in the experiment, whereas those predicted by model II are always higher. However, the averages of the values predicted by model I and II are in fairly good agreement with the experimental data. Thus this analytical approach can offer useful knowledge in designing the pass schedules of the asymmetrical hot strip rolling processes.
机译：提出了两种基于板坯法的分析模型，以检验板带在不对称热轧带钢轧制过程中在辊缝处的行为。在模型I中，考虑了在轧辊间隙处垂直方向的剪应力的影响，而在模型II中则忽略了这一影响。辊和带材之间的中性点，沿辊的接触区域长度的轧制压力分布，轧制力和轧制扭矩可以通过这些建议的分析模型轻松计算。比较了两个模型的轧制压力分布，轧制力和轧制扭矩的结果。由模型I预测的轧制压力分布表明，在横向剪切区域中出现了“压力井”。另一方面，模型II中没有预测“压力井”。此外，模型I预测的滚动力始终低于实验中测得的滚动力，而模型II预测的滚动力始终更高。但是，模型I和模型II预测的平均值与实验数据相当吻合。因此，这种分析方法可为设计不对称热轧带钢轧制的通过时间表提供有用的知识。

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