| 基于Polyflow十字形纤维挤出成形过程的模拟计算 |
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| 引用本文： | 甘学辉,马晓建,刘强,曹均雨,刘娜娜,杨崇倡.基于Polyflow十字形纤维挤出成形过程的模拟计算[J].纺织学报,2011,32(7). |
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| 作者姓名： | 甘学辉 马晓建 刘强 曹均雨 刘娜娜 杨崇倡 |
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| 作者单位： | 东华大学机械工程学院,上海,201620 |
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| 基金项目： | 中央高校基本科研业务费资助项目(9D10306); 高等学校博士学科点专项科研基金资助项目(10W10324) |
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| 摘 要： | 基于Polyflow专用软件,对十字形纤维挤出成形过程进行模拟计算。结果表明:熔体从喷丝孔挤出后速度分布的变化与熔体挤出胀大是同时发生的,表面张力是引起纤维截面变化的主要作用因素,并初步确定了十字形纤维挤出变形距离喷丝板的大致范围,在设计喷丝孔时应考虑到表面张力对纤维成形过程的影响。在设计喷丝孔之前应对熔体挤出过程进行逆向挤出模拟计算,以保证得到所需的异形截面纤维。研究成果对于异形纤维的开发有理论参考作用。
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| 关 键 词： | Polyflow 异形纤维 挤出成形 模拟计算 |
Numerical simulation research of extrusion-forming process of cross fibers based on Polyflow |
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| GAN Xuehui,MA Xiaojian,LIU Qiang,CAO Junyu,LIU Na'na,YANG Chongchang.Numerical simulation research of extrusion-forming process of cross fibers based on Polyflow[J].Journal of Textile Research,2011,32(7). |
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| Authors: | GAN Xuehui MA Xiaojian LIU Qiang CAO Junyu LIU Na'na YANG Chongchang |
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| Abstract: | The numerical simulation of the extrusion-forming process of cross fibers was performed based on Polyflow software.The simulated results revealed that the change of velocity distribution of the melt after extrusion from the spinneret and the extrusion swell of the polymer melt occurred simultaneously.The surface tension dominated the fiber section variation and initially determined the range of the deformation distance of the cross fiber.So the effect of surface tension on the forming process of the fiber s... |
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| Keywords: | Polyflow profile fiber extrusion-forming process simulation calculation |
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