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首页> 外文期刊>Journal of Iron and Steel Research International >Numerical Simulation of Continuous Tension Leveling Process of Thin Strip Steel and Its Application
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Numerical Simulation of Continuous Tension Leveling Process of Thin Strip Steel and Its Application

机译：薄带钢连续拉伸矫直过程的数值模拟及其应用

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摘要

Cold-rolled thin strip steel of high flatness quality undergoes multistage deformation during tension leveling. Thus, the parameters of set-up and manipulating are more difficult. With the aid of FE code MSC. MARC, the tension leveling process of thin strip steel was numerically simulated. Concentrating on the influence of the roll in-termeshes in 2~# anti-cambering on the distribution and magnitude of residual stresses in leveled strip steel, several experiments were done with the tension leveler based on the results from the simulation. It was found from the simulation that the magnitude of longitudinal residual stresses in the cross-section of the leveled strip steel regularly presents obvious interdependence with the roll intermeshes in 2~# anti-cambering. In addition, there is a steady zone as the longitudinal residual stresses of the surface layers in leveled strip steel vary with the roll intermeshes of 2~# anti-cambering, which is of importance in the manipulation of tension levelers. It was also found that the distribution of strains and stresses across the width of strip steel is uneven during leveling or after removing the tension loaded upon the strip, from which it was found that 3D simulation could not be replaced by 2D analysis because 2D analysis in this case cannot represent the physical behavior of strip steel deformation during tension leveling.
机译：平整度高的冷轧薄带钢在拉平过程中经历了多阶段变形。因此，设置和操作的参数更加困难。借助FE代码MSC。 MARC，对薄带钢的拉矫过程进行了数值模拟。着重于2〜＃防弧度轧辊内孔对平整带钢残余应力的分布和残余应力的影响，基于模拟结果对张力矫直机进行了多次试验。通过仿真发现，在2〜＃抗弧度下，矫直带钢横截面上的纵向残余应力的大小与轧辊的内啮合有明显的相互依存关系。此外，由于矫直带钢表面层的纵向残余应力随2〜＃防弧度辊间啮合的变化而变化，因此存在一个稳定区域，这在操纵张力矫直机时很重要。还发现在矫直过程中或去除带钢上的拉力后，带钢整个宽度上的应变和应力分布是不均匀的，因此发现无法用2D分析代替3D模拟，因为2D分析这种情况不能代表拉力矫直过程中带钢变形的物理行为。

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