The die swell phenomenon of the composites was studied.
研究了复合材料的挤出胀大现象。
Study of Die Swell of Gas-assisted Extrusion of Polymer;
主要介绍了黏弹流体挤出胀大的数值模拟研究进展。
Resins with high die swell sometimes have high rates of die buildup.
具有高的出口膨胀的树脂可能具有更高程度的积料。
The multicomponent filled PP has shown an intermediate degree of die swell and flow instabilities.
多组分填充PP显示出中等程度的出口膨胀和流动不稳定性。
Resins with narrow molecular-weight distribution can have lower die swell, but this doesn't necessarily mean less buildup.
具有窄分子量分布的树脂会有低的出口膨胀，但这不意味着它一定有较少的口模积料。
These factors make the die exit pressure, normal velocity and shear rate not to be zero, thus lead to problems including die swell and etc.
这些影响因素使得口模出口处压力、法向速度和剪切速率均不为零，从而引发离模膨胀等问题。
The research advances about die swell, the reduction of friction between die wall and polymer melt, wall slip and melt fracture in polymer extrusion are described in the paper.
对有关挤出胀大、减粘降阻、熔体破裂及壁面滑移的研究进展进行了综述，指出气辅挤出技术是解决以上问题的有效方法。
The effects of geometrical parameters of die and shear rates on the die swell of PVC extruded through rectangular die were discussed, and the special rules were also analyses theoretically.
研究了PVC材料通过矩形口模挤出时，口模的几何参数和剪切速率对离模膨胀的影响，并从理论上分析了其特征规律。
The die-swell mechanism of polycarbasilane(PCS) melt for a spinneret with Y-shaped orifice and the effect of die swelling of PCS on the profile degree (PD) of Y-shaped SiC were investigated.
研究了聚碳矽烷（PCS）熔体在Y型喷丝孔中的挤出胀大机理、膨胀模型以及膨胀比对Y型碳化矽纤维异形度的影响。
The effect of the technology and equipment, such as the structure and dimension of die plates, the extrusion conditions and so on, on the die swell and shrinkage of tread extrudate was described.
阐明影响挤出胎面膨胀和收缩的主要工艺及设备因素是口型板的结构和尺寸、挤出条件以及设备。
The velocity field and shear rate distribution are reduced and uniform along with the proper increase of slip length. The die swell and the interface deflexion phenomenon will be reduced effectively.
适当增加流道的长度，可以减小胶料出口处的速度场、剪切速率场的集中程度并使之趋于均匀，能够有效降低挤出胀大和模外熔体偏转流动现象。
“But you can’t stop population growth by letting poor children die.” He has the computerised graphs to prove it: colourful visuals with circles that swarm, swell and shrink like living creatures.
汉斯•罗斯林是瑞典卡罗琳斯卡大学一位博士也是一位国际健康专家，”但是你不能因为视图阻止人口增加就让可怜的孩子们死去“,他用计算机制作的图形来证明他的观点，图形由一些圆圈组成的多彩的形象，仿佛生物般挤在一起，或膨胀或缩小。
The results show that the extensional flow of melt in convergent die results in intense entrance elastic effect and distinct extrusion swell in conical die with different angles.
结果表明，不同角度圆锥口模挤出过程中，熔体在收敛流道受到拉伸流变，导致强烈的入口弹性效应，表现出熔体在不同角度圆锥口模挤出时有不同的挤出胀大比。
Discussed thoroughly the extrusion swell phenomenon and mechanism of polymer melts in conical die with different entrance angles and different ratios of length to diameter.
深入讨论了聚合物熔体在不同长径比、不同角度圆锥口模的挤出胀大现象及机理。
Neural network method was used to investigate the parison swell affected by the die temperature and extrusion flow rate.
采用人工神经网络方法预测了受模口温度和挤出流率影响的型坯成型阶段的膨胀。
Increasing die land length can also help because it reduces swell.
增加口模流动长度也有帮助，因为它减少了出口膨胀。
This paper discusses thoroughly the extrusion swell phenomenon and mechanism of polymer melts in conical die with different entrance angles and different ratio of length to diameter.
深入讨论了聚合物熔体在不同长径比、不同角度圆锥口模的挤出胀大现象及机理。
The results show that the extensional flow of melt in convergent die results in intense entrance elastic effect and distinct extrusion swell in conical die with different angles.
结果表明，圆锥短口模挤出过程中，熔体在收敛流道受到拉伸流变，导致强烈的入口弹性效应，表现为熔体在短口模挤出时显著的挤出胀大。
The result shows that the extensional flowing of the melt occurs in convergent die resulting in intense entrance elastic effect and distinct extrusion swell.
结果表明，圆锥短口模挤出过程中，熔体在收敛流道受到拉伸流变，导致强烈的入口弹性效应，表现为熔体在短口模挤出时显著的挤出胀大。
The extrudate swell behaviour and the factors affecting it during short die extrusion of linear low density polyethylene (LLDPE) melt have been investigated by using a rheometer.
应用毛细管流变仪，考察了线性低密度聚乙烯(LLDPE)熔体于短口型挤出中的胀大现象及其影响因素。
The swell factor tends to decrease if the cross section of die crown is large, the die round R is small, the runner is large, the dumping temperature is high and the extrusion speed is low;
口型的冠部截面大、口型圆角R小、流胶口大，排胶温度高，挤出速度慢，则膨胀因数小；
FLD is usually measured with swell test in rigid die. The tested FLD is good fit that one measured by analogue computer in ASAME (Automated Strain Analysis and measure Environment).
成形极限图通常是通过钢模胀形试验测得，实际测量的成形极限图与ASAME自动应变测试分析系统模拟计算的成形极限曲线吻合较好。
FLD is usually measured with swell test in rigid die. The tested FLD is good fit that one measured by analogue computer in ASAME (Automated Strain Analysis and measure Environment).
成形极限图通常是通过钢模胀形试验测得，实际测量的成形极限图与ASAME自动应变测试分析系统模拟计算的成形极限曲线吻合较好。
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