挤出的

The paper, combining the technology of expect system with the one of computer emulation, builds up a dynamic emulation extrustion model of allotype plastic material based on the theory of plastic shaping and the expects experiences and then carries out the multi-model intelligent emulation for the extrusion shaping process under the enviroment of multi-media.

鉴于塑料成型理论及塑料挤出模型的不完备及不确定性，难以很好地解决塑料异型材挤出成型过程的分析研究，综合运用专家系统技术与计算机仿真技术，建立符合塑料成型理论与专家设计经验的塑料异型材挤出动态仿真模型，对其挤出成型过程进行多媒体环境下的多模型智能化仿真。

In this paper, power consumption of the extruding zone in conical twin-screw extruder was studied.

本文旨在对锥形双螺杆挤出机挤出过程中挤出段的功率消耗进行研究。

Main various types of plastic extrusion machines, injection molding machines, chemical fiber spinning extruder, rubber tube extruder screw machine screw, Liao Tong, flange, such as printing network box.

主营各种型号的塑料挤出机、注塑机、化纤纺丝挤出机、橡胶挤出机机筒螺杆螺杆、料筒、法兰印花网框等。

SJSZ Series Conical Double-Screw Plastic Extruder, with relevant screw and auxiliary machine, can directly extrude all kinds of thermoplasticity plastic especially the hard PVC powder into pipes, plate, sheet, film, profiles and so on, can also finish process of reshaping of all kinds of plastics and pelleting of the powder.

今天来说说锥形双螺杆挤出机。SJSZ 系列锥形双螺杆挤出机，配以相应的螺杆和辅机。可将各种热塑性塑料特别是硬聚氯乙烯粉料直接挤出成管。

The simulation results show that the die swell rate of height direction is greater than that of width direction. Due to the difference of material characteristic of the two polymers, the end section shape of coextrusion is dissymmetric drum. The coextrusion interface would be change during the extrusion swell process.

有限元模拟结果显示：聚合物在离开方形口模后，熔体高度方向的挤出胀大率明显大于宽度方向的胀大率，且两种熔体的挤出胀大率不同，熔体术端截面形状为不对称的鼓形；在挤出胀大段，共挤出界面的形状和位置会发生变化。

L closed loop control of feed rate to gear pump with pressure transducer and controller as well as electronic speed control of extruder.

l 压力传感器与齿轮泵及挤出机相连，由此形成闭环反馈回路，并由转速调整控制挤出机的挤出量。

The simulation results of the cylinder-block model were given in the article, consistent with that of Middlemen"s. It was shown that the block part could improve the uniformity of the flow distribution. The analysis of the flow field of some materials with different power-law factor in the die designed by Mckelvey was close to that of Mckelvey"s. It was shown that the flow distribution was uniform in the die that can producesheets with 1200mm in width. During the analysis the flow channel was divided into several parts to get the details about the fluid flow in each area. A conclusion was drawn after analyzing the influence of the die pressure on the flow distribution, that the higher pressure is good for the output and bad for the uniformity of the distribution. Simulation of the die applying the cylindrical main runner showed the fact that when the cylinder replaced the cone the change of uniformity was trivial. The uniformity of the non-block flow channel was so poor that the block in the proper position of the die channel was necessary. The project of the die for the wider sheet was put forth, and the analysis of the fluid flow in the die was shown.

本文模拟了圆柱管缝隙流模型的三维流动场，得到了与Middlemen结论一致的流动均匀性，并通过模拟直观地展示了采用阻尼块可以改善挤出均匀性的现象；分析了多种幂率指数的流体在Mckelvey等人设计的流道模型中的流动分布，得到了与Mckelvey的分析结果接近的压力降和流量偏差；本文建立了1200mm幅宽机头流道的三维有限元模型，并逐个分析各个区域和多个截面的流动分布状况，由此揭示了1200mm幅宽L-型机头流道内的流北京化工大学硕士学位论文动分布基本均匀，并在分析了机头压力对于挤出流动分布的影响后得出结论：较高的机头压力可以获得较大的产量，但是不利于物料均匀分布；模拟了采用圆柱管主流道时机头流道内的流动分布，得出结论：主流道由圆锥管改为圆柱管时对流动均匀性影响不大，通过设置适当的阻尼仍然可以达到挤出平衡；模拟了两端进料式圆柱管无阻尼流道的流动均匀性后得到结论：两端进料式无阻尼结构的流动均匀性较差，宽机头中仍然有必要设置阻尼块；确定宽幅机头流道的基本方案，并设计了一种宽幅防水卷材挤出机头流道的结构，通过流动模拟表明该种结构的流动均匀性较好；考察了宽幅机头对于不同厚度片材的挤出适应性，得到结论：当生产不同厚度的片材时，阻尼块高度需要调整。

By using the UG top down assembly modeling technology,and optimizing the design parameters of extrusion die for pipe products,the parameters SQL database of extrusion dies was established.Microsoft Visual Studio.net 2003 MFC was chosen as the development platform of the system,and an intelligent parametric design system of extrusion dies based on UG was designed,which can automatically generate 3D extrusion die assembly parts and graphics.

应用UG自顶向下的装配建模技术，对挤出模头进行参数化设计，建立智能挤出模头参数SQL数据库，采用Microsoft Visual Studio 。net 2003环境进行MFC编程，构建一个基于UG的管材挤出模头智能参数化设计系统，在UG中自动生成三维挤出模头零件和装配图。

Based on polymer processing rheology and single-screw extrusion theories, the precise extrusion theories and techniques were investigated in present paper.

本论文以高聚物加工流变学、高聚物加工工艺学和单螺杆挤出过程理论为基础，论述了精密挤出成型理论和技术及应用前景，研究了实现高聚物精密塑化挤出成型的理论和技术。

Such raw materials as waste polyethylent cable particles, pure polyvinyl chloride powder, wood powder, a metallic soap stabilizer, a coupling agent, chlorinated polyethylene and methacrylic acid polyesters and a lubricator are added into and mixed in a high speed mixer according to the formula, and the mixing temperature is 100 to 110 DEG C, the mixing time is 20 to 35 min; the well mixed material is added into an extruder for extrusion, the rotating speed of the mainframe of the extruder is 40 to 60r/min, the rotating speed of a feeding machine is 4 to 6r/min, and the materials are shaped after being extruded.

将废旧聚氯乙烯电缆颗粒、纯聚氯乙烯粉、木粉、金属皂类稳定剂、偶联剂、氯化聚乙烯、甲基丙烯酸多元酯、润滑剂按照配方配制的原料加入高混机中混合，混合温度为100℃～110℃，混合时间为20～35分钟；将混合好的原料加入挤出机中进行挤出，挤出机主机转速为：40～60转/分钟，喂料机转速为：4～6转/分钟；挤出后进行定型。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。