共查询到18条相似文献,搜索用时 156 毫秒
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用ANSYS有限元方法建立了铝箔轧机辊系变形数学模型 ,分别计算了不同轧件宽度时各轧制道次的辊缝及工作辊与支持辊间的压扁和压力的轴向分布 ,分析了不同轧件宽度时各道次铝箔的比例凸度及对板形的影响 ,与现场板形目测情况吻合。该计算方法可用做厚度大于 0 .1mm的铝箔轧机辊系变形数学模型。 相似文献
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借助非线性有限元软件Marc,采用弹塑性有限元方法对十八辊轧机辊系进行了模拟,计算模型对辊系的弹性变形与带钢的弹塑性变形按照接触问题进行耦合分析。利用此模型,得出了轧制力对辊系弯曲变形的影响以及辊系弯曲变形沿轧件宽度方向的分布,并分析了轧机工作辊的不同方向弯曲变形情况,由对计算结果的分析可以为该轧机的辊系设计提供理论依据。 相似文献
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《塑性工程学报》2020,(3)
将轧件塑性变形轧制压力计算与十二辊轧机辊系弹性变形的MSC. MARC有限元计算相结合,建立了十二辊轧机轧制薄带的板凸度控制的计算方法。通过预设轧件板凸度计算的轧制压力以及在该轧制压力作用下1400 mm十二辊轧机辊系之间的弹性变形迭代计算,确定了轧机中间辊单侧锥度变化对ST12薄带板凸度、辊系之间的压力分布以及工作辊位移影响规律,同时通过优化计算辊系的中间辊单侧锥度变化,使该轧机轧制的ST12薄带产品横向同板差平均下降超过35%,其生产的0. 1~0. 3 mm厚度薄带产品板形控制达到0. 5~1. 0 mm/2 m以下,从而有效提高该轧机轧制的薄带板凸度和板形控制能力。 相似文献
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此文利用本城模型对某1850铝带材轧机轧辊辊系变形进行了分析,利用现场实测数据验证了分析结果,并利用分析结果对板材的板形分析进行了预报。 相似文献
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Wang Hongxu Liu Jianjun Lian Jiachuang Liu Junbo Rolling Steel Institute Yanshan University Qinhuangdao P. R. China 《中国有色金属学会会刊》1998,(3)
1INTRODUCTIONAsthemilwithrolshiftedhasgoodshapecontrolcharacteristic,ithasbeenappliedtoproductionofcoldroledandhotroledstri... 相似文献
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The deflection of rolls of Sendzimir mill with double AS-U-Roll was simulated by finite element method(FEM). The influences of rolling pressure, strip width and rolls-assignment on rolls deflection were analyzed. The results show that the work roll deflection increases with the increase of rolling pressure and the reduction of work roll radius, but the rigid displacement of work roll slightly changes; the work roll end might appear negative displacement for the narrow strip width and high rolling pressure that might cause the contact of work rolls. The research results are significant for guiding production and theoretical analysis of the rolls system of Sendzimir mill. 相似文献
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辊间压痕是制约六辊铝板带冷轧机实现中间辊抽动功能从而达到改善板形目的的一大障碍。在现场考察的基础上,基于Abaqus有限元软件对六辊铝板带冷轧机进行了辊系受力仿真,得到了辊间受力的情况,分析并验证了辊间压痕的成因是由轧辊倒角设计不合理或磨辊时处理不当,没有把倒圆角倒到规定的标准所造成,并由此提出了对轧辊倒角设计的改进方案并对倒角改进后的辊系受力进行了有限元仿真。结果表明,采用所提出的倒角改进方案能够大幅度减轻辊间压痕,从而对充分发挥六辊轧机的板形控制能力,对改善板形具有重要的意义。 相似文献
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Rolling of T-shaped profiled strip by the satellite mill 总被引:1,自引:0,他引:1
H. Utsunomiya Y. Saito T. Hayashi T. Sakai 《Journal of Materials Engineering and Performance》1997,6(3):319-325
A new type of compact mill called a “satellite mill” is used for producing T-shaped profiled strip from flat strip. The mill
comprises one large-diameter flat roll (central roll) and five smaller-diameter caliber rolls (satellite rolls) arranged along
the periphery of the central roll. The flat strip is continuously passed through the five gaps between the central roll and
the satellite rolls and formed into a T shape. All rolls are driven at an equal peripheral speed to restrain elongation of
strip and to promote transversal metal flow. A guide shoe is provided between each two adjacent satellite rolls to prevent
the strip from bulging out or buckling. Using aluminum as a model material, some rolling experiments were performed on the
mill. T-shaped profiled strips with a thickness ratio (thickness of thick part per thickness of thin part) as high as three
were rolled successfully. When deformation and force characteristics were investigated, it was found that, in comparison to
a conventional multipass caliber rolling, the elongation of the strip is suppressed and the filling ability is much improved. 相似文献
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1 INTRODUCTIONItisnecessarytoevaluateperformance ,toana lyzeandtoestimatethemechanicalbehaviorofHCmillforusingitefficiently ,masteringthecharacteris ticofthe pressuretransversedistributionbetweenrolls,anddecreasingtherollsattritionwear.Largescalestudyonde… 相似文献
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Y. Saito T. Watanabe H. Utsunomiya 《Journal of Materials Engineering and Performance》1992,1(6):789-795
A new type of compact continuous mill called the “Satellite mill” has been developed to produce profiled metal strip from
flat strip. This mill consists of one large-diameter driven roll (central roll) and five smaller rolls (satellite rolls) arranged
along the periphery of the central roll. A strip is continuously rolled at five gaps between the central roll and the satellite
rolls. All rolls are driven at an equal roll peripheral speed to promote transverse metal flow or lateral spread. Guide shoes
are provided between the adjacent satellite rolls and are supported with two adjacent satellite rolls. They prevent a strip
from bulging or buckling. A test mill was constructed, and rolling experiments have been performed on the production of T-shaped
or U-shaped profiled aluminum strip. The deformation- load characteristics were investigated and compared with those of conventional
rolling. As a result, in the satellite mill rolling operation, elongation was suppressed. Lateral spread was enhanced, and
the profile of the product cross section was significantly improved. Consequently, the new rolling process was found to be
forming of profiled metal strip. 相似文献