共查询到20条相似文献,搜索用时 109 毫秒
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介绍了现代小型连轧机使用椭圆-立椭圆孔型系统的优点和设计方法。列举了两种不同机组使用这一系统的例子。 相似文献
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采用有限元软件ANSYS/LS-DYNA对三辊Y型轧机平三角-圆孔型系统轧制钛合金(TC4)棒材工艺进行模拟,研究了棒材在平三角-圆孔型中的金属流动、应力应变、轧制力等轧制参数。模拟结果表明:采用平三角-圆孔型系统生产钛合金棒材是可行的,为新产品轧制方案及孔型设计提供了分析依据。 相似文献
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介绍了柳钢棒线厂根据无孔型轧制技术原理,通过建立宽展模型,修改相关孔型和导卫,成功开发螺纹钢成品前孔无孔型轧制技术,应用于全规格螺纹钢的生产,从而降低成品废品率80%,提高成品前孔轧制量6倍。 相似文献
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LIJian-chao CUIJian-zhong MAYong-lin WANGBao-feng 《钢铁研究学报(英文版)》2004,11(2):30-33
A study on prediction of deformation behavior (rolling force, equilibrium strain,spread) during rolling was accomplished with FE code ANSYS/LS-DYNA. The laboratory experiments were conducted on a two-high mill with roll diameter of 170 mm to approve the results of simulation by explicit dynamics FEM. It was found that there is a good agreement between calculated and experimental data, which means that the shape rolling could be analyzed by means of explicit dynamics FEM. 相似文献
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Rolling schedule not only determines the rolling process to be going smoothly, but also affects the shape accuracy and structure properties of finished strip. In order to gain good strip crown and flatness, the calculation formulas of the most suitable rolling force and bending force are deduced. By taking relatively equal load of rolling power and good shape as objective functions, the optimization mathematical models of finish rolling schedule are established. By contrast, the rolling schedules after optimization can improve the rolling mill working status and ensure the strip crown and flatness to be good. At the same time, the setting value of bending force is improved and this leaves more space for on-line shape control. 相似文献