UCM六辊轧机冷轧硅钢边部减薄分析及改造
发布时间：2018-09-03 19:01
【摘要】：冷轧硅钢板广泛应用于中小型电机、发电机和家用电器等的制造,横向厚度差是冷轧硅钢产品的重要质量指标。硅钢板的横向厚度差直接影响到叠片后电机芯层的性能,甚至整个电机的发热和效率。冷轧硅钢板横向厚度差的产生主要来源于热轧来料的板凸度和冷轧带钢的边部减薄(Edge Drop)两方面。热轧阶段现有轧钢设备基本可以满足对板凸度要求,于是冷轧硅钢板横向厚度差就主要由冷轧时带钢的边部减薄所决定。本文以鞍钢股份有限公司冷轧硅钢厂(简称A钢厂)五机架UCM六辊轧机为研究对象,指出UCM轧机在轧制无取向硅钢时边部减薄控制方面的不足,通过分析和研究边部减薄产生机理,确定UCM六辊轧机冷轧带钢过程中产生边部减薄的影响因素。本文结合Pro/E与ANSYS Workbench两种软件的特点,通过三维软件Pro/E对UCM轧机辊系-带钢进行了实体建模,并将实体模型导入ANSYS Workbench软件中建立有限元模型,通过对轧制力、弯辊力和窜辊位置等因素发生变化后对边部减薄产生影响进行具体分析,得出上述因素变化时边部减薄所对应变化规律。为解决现有UCM六辊轧机在生产无取向硅钢产品时边部减薄严重的问题,A钢厂对原有UCM轧机进行改造,通过增加工作辊窜辊装置和工作辊采用EVC辊形来提高UCM轧机对边部减薄的控制能力,本文通过现场实物板形对比,现场随机抽取样品测量来比较技术改造前后UCM轧机在边部减薄控制方面的提高。
[Abstract]:Cold rolled silicon steel plate is widely used in the manufacture of small and medium electric machines, generators and household appliances. The difference of transverse thickness is an important quality index of cold rolled silicon steel products. The transverse thickness difference of silicon steel directly affects the performance of motor core layer after lamination, and even the heat and efficiency of the whole motor. The transverse thickness difference of cold rolled silicon steel mainly comes from two aspects: strip crown of hot rolling and edge thinning (Edge Drop) of cold rolled strip. The existing rolling equipment in hot rolling stage can basically meet the requirements of plate crown, so the lateral thickness difference of cold rolled silicon steel plate is mainly determined by the edge thinning of the strip during cold rolling. This paper takes the five-stand UCM six-high rolling mill in Angang Cold rolled Silicon Steel Plant (referred to as A Steel Plant) as the research object, and points out the deficiency of the UCM mill in the control of edge thinning when rolling non-oriented silicon steel. By analyzing and studying the mechanism of edge thinning, the influence factors of edge thinning in the cold rolling process of UCM six-high mill are determined. According to the characteristics of Pro/E and ANSYS Workbench software, the solid model of UCM rolling mill roll system and strip steel is modeled by 3D software Pro/E, and the solid model is introduced into ANSYS Workbench software to establish the finite element model, and the rolling force is analyzed. After the change of roll bending force and roll position, the influence of edge thinning is analyzed in detail, and the corresponding change law of edge thinning is obtained when the above factors change. In order to solve the serious problem of edge thinning in the production of non-oriented silicon steel by existing UCM six-high mill, the original UCM mill was reformed in A steel plant. By adding the work roll channeling device and the work roll adopting EVC roll shape to improve the control ability of the UCM mill's edge thinning, this paper makes a comparison of the actual shape of the work roll on the spot. In order to compare the improvement of edge thinning control of UCM mill before and after technical modification, random sampling samples were taken in the field.
【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TG333
本文编号：2220886
[Abstract]:Cold rolled silicon steel plate is widely used in the manufacture of small and medium electric machines, generators and household appliances. The difference of transverse thickness is an important quality index of cold rolled silicon steel products. The transverse thickness difference of silicon steel directly affects the performance of motor core layer after lamination, and even the heat and efficiency of the whole motor. The transverse thickness difference of cold rolled silicon steel mainly comes from two aspects: strip crown of hot rolling and edge thinning (Edge Drop) of cold rolled strip. The existing rolling equipment in hot rolling stage can basically meet the requirements of plate crown, so the lateral thickness difference of cold rolled silicon steel plate is mainly determined by the edge thinning of the strip during cold rolling. This paper takes the five-stand UCM six-high rolling mill in Angang Cold rolled Silicon Steel Plant (referred to as A Steel Plant) as the research object, and points out the deficiency of the UCM mill in the control of edge thinning when rolling non-oriented silicon steel. By analyzing and studying the mechanism of edge thinning, the influence factors of edge thinning in the cold rolling process of UCM six-high mill are determined. According to the characteristics of Pro/E and ANSYS Workbench software, the solid model of UCM rolling mill roll system and strip steel is modeled by 3D software Pro/E, and the solid model is introduced into ANSYS Workbench software to establish the finite element model, and the rolling force is analyzed. After the change of roll bending force and roll position, the influence of edge thinning is analyzed in detail, and the corresponding change law of edge thinning is obtained when the above factors change. In order to solve the serious problem of edge thinning in the production of non-oriented silicon steel by existing UCM six-high mill, the original UCM mill was reformed in A steel plant. By adding the work roll channeling device and the work roll adopting EVC roll shape to improve the control ability of the UCM mill's edge thinning, this paper makes a comparison of the actual shape of the work roll on the spot. In order to compare the improvement of edge thinning control of UCM mill before and after technical modification, random sampling samples were taken in the field.
【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TG333
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