当前位置：
X-MOL 学术
›
Steel Res. Int.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
A Study on Potential Strip Shape Control of High‐Strength Steel during Hot Pinch Rolling Process
Steel Research International ( IF 1.9 ) Pub Date : 2020-08-28 , DOI: 10.1002/srin.202000140 Ning Kong 1 , Chuan Zhao 1 , Jianguo Cao 1 , Qingdong Zhang 1
Steel Research International ( IF 1.9 ) Pub Date : 2020-08-28 , DOI: 10.1002/srin.202000140 Ning Kong 1 , Chuan Zhao 1 , Jianguo Cao 1 , Qingdong Zhang 1
Affiliation
|
Hot‐rolled high‐strength steel (HSS) strips always present side‐camber after they are cut into subsections along the rolling direction. To deal with the potential strip shape defect of hot‐rolled HSS, the nonlinear finite element (FE) software is applied to establish a 3D model of pinch roll and strips to simulate the pinch rolling process before the hot rolling coiler. The effects of temperature distribution, roll wear, friction coefficient, initial strip flatness defects, and tension on the strip longitudinal extension distribution are studied along the width direction. The results indicate that the pinch roll wear presents a great influence on both the tendency and quantitative value of the strip longitudinal extension distribution. The maximum unevenness value is 178%, and the maximum differences of longitudinal strain between the center and edge of the strips reach to 51.43%. A newly pinch roll contour is proposed to improve the potential strip shape defects. After the industrial application, the average pinch roll wear thickness decreases from 180 to 120 μm. The hot rolled strips are cut into substrips and the maximum side‐camber value decreases from 12 to 3 mm, which meets the requirement from the auto part manufacturers.
中文翻译：
高强热轧过程中高强钢带形控制的研究
热轧高强度钢（HSS）钢带在沿轧制方向切成小段后，总是出现在侧弯处。为了解决热轧高速钢的潜在带材形状缺陷，应用非线性有限元（FE）软件建立了夹送辊和带材的3D模型，以模拟热轧卷取机之前的夹送轧制过程。沿宽度方向研究了温度分布，辊磨损，摩擦系数，初始带钢平直度缺陷和张力对带钢纵向延伸分布的影响。结果表明，夹送辊的磨损对带材纵向延伸分布的趋势和定量值都有很大影响。最大不均匀度值为178％，条带中心与边缘之间的纵向应变最大差达到51.43％。提出了一种新的夹送辊轮廓，以改善潜在的带材形状缺陷。工业应用后，平均夹送辊的磨损厚度从180微米降低到120微米。热轧带钢被切成条带，最大侧弧度值从12毫米减小到3毫米，可以满足汽车零件制造商的要求。
更新日期：2020-08-28
中文翻译：
高强热轧过程中高强钢带形控制的研究
热轧高强度钢（HSS）钢带在沿轧制方向切成小段后，总是出现在侧弯处。为了解决热轧高速钢的潜在带材形状缺陷，应用非线性有限元（FE）软件建立了夹送辊和带材的3D模型，以模拟热轧卷取机之前的夹送轧制过程。沿宽度方向研究了温度分布，辊磨损，摩擦系数，初始带钢平直度缺陷和张力对带钢纵向延伸分布的影响。结果表明，夹送辊的磨损对带材纵向延伸分布的趋势和定量值都有很大影响。最大不均匀度值为178％，条带中心与边缘之间的纵向应变最大差达到51.43％。提出了一种新的夹送辊轮廓，以改善潜在的带材形状缺陷。工业应用后，平均夹送辊的磨损厚度从180微米降低到120微米。热轧带钢被切成条带，最大侧弧度值从12毫米减小到3毫米，可以满足汽车零件制造商的要求。
京公网安备 11010802027423号