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ZHAOQi-lin LIUXiang-hua WANGGuo-dong XUJun ANHua-wei 《钢铁研究学报(英文版)》2005,12(4):35-39
A neural network friction model with very good prediction accuracy was developed on the basis of industrial data. Simulative calculation indicated that the accuracy of rolling force and motor power calculation can be improved using the calculated friction coefficient. It was found that reduction ratio and deformation resistance of strip has more effects than other parameters, and the effects of most parameters are affected by rolling speed. 相似文献
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本文以铝板带冷轧机轧制规程为研究对象,应用遗传算法对轧制规程进行优化设计。首先,介绍了遗传算法的基本原理和基本步骤;其次,建立系统模型及介绍遗传算法实现的具体步骤。结果比较表明,该方法优化效果好,适合在实际中应用。 相似文献
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针对热轧带钢粗轧段大立辊侧压调宽轧制的生产特点,利用ANSYS/LS-DYNA建立立辊三维轧制有限元仿真模型,模拟计算不同工艺条件下轧件的变形规律,重点分析横截面形状(狗骨形)变形特点,以及宽展变形特点,所得结果与现场情况吻合,证明所建模型及计算结果可对现场工艺制定提供指导作用。 相似文献
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谢军 《金属材料与冶金工程》2012,40(3):40-42
涟钢1720冷轧机投产以来,多次发生高速断带,极大地增加了轧制成本.通过对原料、设备、工艺和操作等方面的研究,最终找到了预防高速断带的措施. 相似文献
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精密不锈钢带冷轧生产工艺 总被引:2,自引:0,他引:2
介绍了精密不锈钢带的生产工艺,并对森吉米尔20辊轧机的某些先进技术作了详细的描述,指出精密不锈钢带冷轧生产工艺是目前较为先进的一项冷轧技术。 相似文献
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统计分析表明,电气控制和工艺原因是引起断带的主要因素,其次为起车、来料缺陷和操作等原因造成的断带。通过相应采取控制原料质量、改进圆盘剪工艺参数、优化轧制模型、修改GCS和起车控制方式等改进措施,使双机架冷轧机断带事故发生率降低了65%以上。 相似文献
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2007年左右我国将成为不锈钢第一生产大国,投资巨大,为了降低投资和生产成本。介绍了冷轧不锈带钢连续生产线的发展过程,工艺特征及主要工艺参数,为不锈钢工艺开发提供参考。 相似文献
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It is a complicated problem for cold-rolled strip to improve asymmetric strip shape in strip production. A roll system and strip coupled model of six-high cold rolling mill was established with finite element method to estimate the effect of intermediate roll shifting, tilting, symmetric and asymmetric bending technologies on strip profile. To reduce asymmetric defects of strip shape as much as possible, some control strategies were proposed, including tilting and asymmetric bending of intermediate roll and work roll. The combinations of these three control strategies can effectively eliminate asymmetric strip shape defects. Finally, the closed-loop control model of asymmetric flatness at the last stand was given, and the flatness control system with the function of asymmetric strip shape control was also designed for cold tandem mill. 相似文献
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���� ����������ʥ�ң����� 《钢铁研究学报》2013,25(10):42-46
Effect of double cold rolling on magnetic properties and microstructure of 3.98%Si-0.71%Al non-oriented silicon Steel Sheets cast by twin-roll thin strip casting process were investigated. The results show that the structure of the thin strip is equiaxed crystal, the recrystallization is complete and normalizing has lesser effect on microstructure. Using both cold rolled and double cold rolled process, the microstructure is equiaxed grain after final annealing. The average grain size of annealed sheet in double cold rolled specimen was smaller than single stage cold rolled sheet. Double cold rolling process is helpful for iron loss and magnetic flux density. 相似文献
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本钢冷轧厂热镀锌生产线采用西门子MMC216多微机系统及相应的控制技术,实现全线带钢跟踪,保证了生产的正常运行. 相似文献