The introduction of vibration force field in the foaming of microcellular plastics provides a new research field for the continuous extrusion of microcellular PVC foams.
将振动力场引入到微孔发泡过程为PVC微孔塑料连续挤出成型提供了新的思路和研究方向。
This paper provides an effective ray tracing method for prediction of microcellular radio propagation, which is called a ray tracing method based on virtual source binary tree.
本文提出了一种能有效预测微小区环境中电波传播的射线跟踪算法——基于虚拟源二叉树的射线跟踪算法。
Microcellular foams can be produced by batch foaming, microcellular injection molding and microcellular continuous extrusion, each method has its advantages and scope of application.
微孔发泡材料的制备大体上可分为间歇法、注射成型法和连续挤出法，各种方法各有其优点和适用的领域。
Application of polymer polyol in microcellular polyurethane elastomer (MPUE) was researched.
对聚合物多元醇在聚氨酯微孔弹性体中的应用进行了研究。
Therefore a new accurate prediction model must be established to analyze the radio propagation in microcellular.
这就需要建立一种精确的电波传播预测模型来分析微小区的电波传播。
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塑料挤出成型及微孔塑料加工中的应用。
The moulding mechanism and the moulding techniques of microcellular foaming materials are emphasized in this paper.
着重介绍了微孔发泡高分子材料的成型机理和成型工艺。
The influencing factors and technical problems of continuous extrusion of microcellular plastic foams are explained.
阐述了塑料微孔发泡连续挤出成型中的众多技术难点和影响因素。
A new propagation prediction method for urban microcellular systems is presented based on measurement data and statistic model.
基于路测数据和统计模式，提出了针对城市微蜂窝的模式修正场强传播损耗预测方法。
The nucleation of bubble is a key stage of the process of extruding microcellular when using supercritical CO_2 fluid as foaming agent.
气泡的成核阶段是采用超临界CO_2流体挤出微孔发泡塑料的关键成型环节。
Introduce the characteristics and application range of microcellular foams, analyse the technological study situation at home and abroad.
介绍了微孔泡沫塑料的特点及其应用，分析了国内外对微孔泡沫塑料的研究现状。
To form a microcellular polyurethane material, the urethane prepolymer is frothed with inert gas, in the presence of a surfactant, then cured.
为了形成微孔聚氨酯材料，在表面活性剂存在下用惰性气体使该氨基甲酸酯预聚物发泡，随后固化。
The forming methods of microcellular plastics include batch microcellular foaming, continuous extrusion, injection molding and phase separation.
微孔塑料的成型方法主要包括间歇成型法、连续挤出成型法、注射成型法和相分离法等，并且各有优缺点。
Experimental results showed that the melt strength was enhanced and the microcellular structure became more uniform when the Talc was added to the blend.
研究结果表明，滑石粉的加入使体系的熔体强度提高，发泡样品的泡孔结构变得更均匀。
This paper studied and established the mathematical model for bubble growth in polymer during microcellular foaming, for controlling the cells size and their distribution.
研究、建立了聚合物微孔发泡过程中的气泡成长数学模型，以控制发泡过程中的泡孔尺寸大小和尺寸分布。
This paper presents an effective radio wave propagation prediction model by using radiation sources tree for microcellular environment. This model is based on ray-tracing and UTD.
提出了一种有效的微蜂窝电波传播预测模型，该模型基于射线跟踪法和UTD理论，并使用辐射源树的方法。
And, the up-to-date technical trends of processing technics and the major working principle used for microcellular plastics by injection molding at home and abroad are introduced.
并特别介绍了几种国内外微孔塑料注射成型加工工艺的最新技术动态以及其主要的工作原理。
Because of a polyfluortetraethylene microcellular structure and the flowability of the aerogel powder body, the waterproof heat insulation sandwich layer has good ventilation performance.
聚四氟乙烯微孔结构和气凝胶粉体的可流动性，使得防水隔热夹层具有良好的透气性。
The properties, formation theory and technologies of microcellular foam plastics are introduced, and the technological difficulties in the formation of microcellular foam plastics are analysed.
详细介绍了微孔泡沫塑料的性能、成型原理和成型技术，具体分析了微孔泡沫塑料成型的技术难点。
Then a small quantity of Talc was added to PP/HDPE blend in this study. Effects of the Talc content on the melt strength and microcellular foaming process of the blended system were investigated.
然后在PP/HDPE共混体系中加入少量滑石粉，研究滑石粉的含量对共混体系熔体强度及微孔发泡过程的影响。
Microcellular plastic is a new kind of polymeric material.
微孔塑料是一种新型的高分子材料。
The present work may be used to supply some guidelines for the design of Microcellular foam plastics.
本文的研究工作，在一定程度上可为低发泡塑料的强韧化设计提供了理论分析依据。
Microcellular plastics and their extrusion technology are introduced. Microcellular polymer processing and conventional extrusion foam processing is compared.
介绍微孔塑料及其挤出成型技术，并与一般挤出发泡成型进行了比较。
Microcellular foams not only can be used as high-performance engineering plastics, but also can be used as the environment friendly substitutive material of natural wood, so they have wide values.
微发泡塑料不仅可以作为高性能的工程塑料，更可以作为一种替代天然木材的环保材料，用途十分广泛。
Microcellular foams not only can be used as high-performance engineering plastics, but also can be used as the environment friendly substitutive material of natural wood, so they have wide values.
微发泡塑料不仅可以作为高性能的工程塑料，更可以作为一种替代天然木材的环保材料，用途十分广泛。
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