塑料熔体在挤出模中的流动状态分析是挤出模设计的基础。
The flow state analysis of the plastic melt in the extrusion die is the basis of the extrusion die design.
提出一种新的确定注塑成型充模阶段塑料熔体前沿位置的当量距离法；
The equivalent distance method is put forward to determine polymer melt front advancement during injection molding.
与之对比的是，塑料熔体在一定温度下粘度随着剪切速率的变化而变化。
By contrast, the viscosity of a melt of a plastic at a constant temperature changes markedly as the shear rate changes.
分析塑料熔体在板模机头中的流动状况，并给出板模机头模唇设计方法。
The flow condition of plastic melt in the extrusion die is analysed in this paper, and the design method of the die lip-length for plastic plate extrusion is also given.
此外还预测了扩张机头流道长度，面积扩张比、塑料熔体粘度对取向度也有影响。
It is also predicted that the orientation ratio responds to the die channel length, the channel area expanding ratio of die and plastics melt viscosity.
对硬聚氯乙烯塑料熔体挤出胀大现象作了专项测定，讨论了产生挤出胀大现象的原因。
This paper gives a special measurement of RPVC plastic melt and discusses the reasons causing the phenomenon of extruding expansion.
本文分析了在塑料熔体充满型腔的过程中，流动阻力及能量损失产生的形式和物理原因。
During the course of the plastics melt filling in the die cavity, the forms of the flowing resistance and the energy loss and the reason why they come into being are analyzed.
浇注系统是注塑模具结构设计中的一个重要组成部分，也是塑料熔体进入模具型腔的唯一通道。
Injection mould feed system is an important component of the structure design of injection mould, and is also the only channel for molten plastic flowing into mold cavity.
计算塑料熔体在锥环形流道中停留时间的一般公式可稍作推广即可应用到其它形状的流道计算中。
Some relative equations which are deriveted from the general calculation formula of residence time of plastic melt in the taper ring channel, could be applied to other configurations of channel.
气体辅助注塑成型工艺包含塑料熔体注射和气体注射两部分，由气体推致力塑料熔体充满模具型腔。
Gas assisted plastics injection molding process includes injection of polymer melt into mold cavity and then injection of gas-compressed into the polymer melt.
根据塑件结构及其模具特点，基于ANSYS软件，建立并模拟了塑料熔体在浇注系统中的流动模型。
According to the structure of plastic parts and mold characteristics, the flow model of the plastic melt in the gating system based on the ANSYS was built and simulated.
本文分析了异型(圆环型与矩形的组合)材成型时塑料熔体在模头中的流动机理，并给出了模口成型长度的设计方法。
While profile, the cross section was composed of annulus and rectangle, was extruded, the flow mechanism the plastic melt in the die was analyzed and the design method of die land was given.
通过对塑料熔体在型腔中的流动性分析和模具温度控制方式的比较，确定了微结构塑件在注射过程中模具温度控制的优化方案。
According to the structure of plastic parts and mold characteristics, the flow model of the plastic melt in the gating system based on the ANSYS was built and simulated.
在注塑加工数值模拟过程中，模腔的表面温度直接影响塑料熔体的流动和固化过程，所以模腔表面温度的计算对注塑数值模拟的结果起着极为重要的作用。
The temperature on mold cavity's surface affects the melt's flow and cooling in the course of injection molding, then has an important part in the solution of injection molding.
讨论了塑料注射成型流动过程分析中熔体前沿喷泉效应的近似处理方法和数值分析方法。
The methods of approximate treat and numeric analysis for melt front fountain effect in the flow analysis of plastic injection molding was discussed in this paper.
介绍了熔体齿轮泵在塑料挤出成型及微孔塑料加工中的应用。
The applications of polymer melt gear pump in plastics extrusion and microcellular plastics forming are introduced.
介绍了熔体齿轮泵在聚合物加工中的性能与特点，列举了用于塑料、橡胶挤出的熔体齿轮泵的用途和特点。
The performance and feature of melt gear pump in the polymer processing was introduced, and the purpose and characteristic of melt gear pump for plastic and rubber extrusion was listed.
介绍塑料成型加工过程中固态聚合物性质、熔体的流动性质以及热物理性质等。
This paper introduces some polymer properties including solid property, melt flow property and some thermal physical properties in the molding.
以熔体流动速率为例，阐述塑料性能测试条件应尽量接近生产和使用条件。
It is pointed out that the testing conditions of plastics properties should near the production and application conditions as far as possible by taking melt flow rate (MFR) for an example.
在塑料共注成型中，芯层熔体前沿突破是导致废品的主要原因，其成型机理至今尚未弄清。
The melt front breakthrough of the core is the main cause of forming waster in the co-injection molding.
主要运用于热可熔性塑料的熔化与粘结(热封)，：汽车车灯的面罩与灯体的焊接。
Mainly apply to the melt and bond (heat seal) of the thermoplastic material, eg: the welding of the auto lamp housing and body.
主要运用于热可熔性塑料的熔化与粘结(热封)，：汽车车灯的面罩与灯体的焊接。
Mainly apply to the melt and bond (heat seal) of the thermoplastic material, eg: the welding of the auto lamp housing and body.
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