挤出的

The extruder is used only to achieve effective mastication and to ensure sufficient feed to the gear pump.

通过使用齿轮泵增压，对挤出机本身要求就会很少，也就是说较小的挤出机尺寸却能增加产量。

Some physical parameters to characterize two kinds of the extrudate distortions- sharkskin fracture and extrusion pressure oscillation were defined.

定义了定量描述两类挤出畸变现象———鲨鱼皮畸变和挤出压力振荡的若干物理参数。

This is a company to produce plastic products out of the enterprise, with more than 10 years out of production experience, the existing factory area of 1,000 square meters, three technical staff, production staff 20, twin-screw production line 2, 10 million yuan in annual output value.

本公司是一家以生产挤出塑料产品为主的企业，拥有十年以上挤出生产经验，现有厂房面积1000平方米，技术工程人员3名，生产员工20名，双螺杆生产线2条，年产值在1000万元。

In view of macroscopic visualization and sub-macroscopic visualization techniques, penetration model of the laterstage of the melting zone was developed.

基于宏观和亚宏观可视化技术，对单螺杆挤出机挤出过程中物料熔融后期的固相破碎现象提出了渗流模型，并对固体床破碎现象进行了细观解释。

The reaction mechanism, by-reaction inhibition, effect of initiator, and monomer on grafted products are studied extensively. Polyethylene grafted with maleic anhydride, as the hot melt adhesive for the aluminum-plastics compound pipe, is also studied as a goal for engineering application.

对反应挤出接枝体系进行了热分析，确定了合理的反应挤出工艺条件：用红外光谱和化学滴定的方法分别对接枝结构和接枝率作了定性表征和定量测定；对三种反应挤出体系的反应机理和副反应的抑制，以及引发剂、单体对接枝产物的影响进行了深入系统地研究；对PE接枝MAH作为铝塑复合管的热熔胶进行了工程化应用研究。

The suitable reaction conditions are determined by thermal analysis for grafting systems via reactive extrusion technology. The grafted structure and grafted ratio are determined and tested by infrared spectrometry and chemical tritration method. The reaction mechanism, by-reaction inhibition, effect of initiator, and monomer on grafted products are studied extensively. Polyethylene grafted with maleic anhydride, as the hot melt adhesive for the aluminum-plastics compound pipe, is also studied as a goal for engineering application.

对反应挤出接枝体系进行了热分析，确定了合理的反应挤出工艺条件：用红外光谱和化学滴定的方法分别对接枝结构和接枝率作了定性表征和定量测定；对三种反应挤出体系的反应机理和副反应的抑制，以及引发剂、单体对接枝产物的影响进行了深入系统地研究；对PE接枝MAH作为铝塑复合管的热熔胶进行了工程化应用研究。

The suitable reaction conditions are determined by thermal analysis for grafting systems via reactive extrusion technology. The grafted structure and grafted ratio are determined and tested by infrared spectrometry and chemical tritration method. The reaction mechanism, by-reaction inhibition, effect of initiator, and monomer on grafted products are studied extensively.

对反应挤出接枝体系进行了热分析，确定了合理的反应挤出工艺条件；用红外光谱和化学滴定的方法分别对接枝结构和接枝率作了定性表征和定量测定；对三种反应挤出体系的反应机理和副反应的抑制，以及引发剂、单体对接枝产物的影响进行了深入系统地研究；对PE接枝MAH作为铝塑复合管的热熔胶进行了工程化应用研究。

Double deck Co-extrusion plastics decorative board with soft surface layer;2. Adjustment of the co-extrusion tooling is very important for producing high-quality colored co-extrusion plastic profiles.

塑料异型材表面彩色复合共挤在国内日益兴起，对该类挤出模具的调试是获得满意共挤出异型材的关键之一，现结合共挤模具，探讨了共挤工艺参数的设定、共挤层厚度的控制、共挤层表面质量的控制、共挤层与基材的粘结强度等共挤出模具的调试技

In this dissertation the"Penalty"finite element method was employed to compute the velocity of the three-dimensional flow of power-law fluid in a profile die. In order to decrease the needed computer memory and raise the stability of numerical simulation, a set of decoupled methods such as PFEM, pseudo-body force method and transformation of momentum equation to the elliptic equation was developed to establish the general finite element equations to compute the distributions of velocity and viscoelastic stress of the three-dimensional viscoelastic flow of the Phan ThienTanner fluid in a profile die. During numerical simulation of the extrudate swell of the PTT fluid, the flow in the die and out of the die was analyzed separately, which demands less computer memory.

本文建立了求解挤出口模内幂律流体流动速度场的通用三维罚有限元模型；对于非线性粘弹性的Phan Thien-Tanner流体，为了降低模拟计算对计算机硬件的要求，并使模拟计算更加稳定，采用了一种去耦算法，包括罚有限元方法、拟体力方法和动量方程的椭圆类方程转化方法，并建立了求解速度场和粘弹性应力场的总体有限元方程；对于PTT流体的挤出胀大问题，提出了挤出胀大熔体口模内外分离模拟法，这样可以显著降低数值模拟对计算机硬件的要求。

The design flow out of the nose is the key to the design, and the structure of the reasonableness of the extrusion products directly affect the quality and production , we must improve the quality of products, improve product yield and efficiency needed from the extruder the melting, forming and cooling curing these three areas to can use for mapping, using Pro / E model, and then use ANSYS finite element analysis software to mold the strength of the nose, a nose MasterCAM by the end of the simulation process of more modern digital technology continues to improve significantly reduce the loss in the test mode, and from product quality, productivity and efficiency is also a very good improvement.

流道设计是挤出机头设计的关键，其结构的合理性直接影响到挤出制品的质量和生产效率。所以要改进产品的质量，提高产品的产量和效率就需要从挤出机的熔融、成形和冷却固化这三方面加以研究。可以使用AutoCAD进行绘图，用Pro/E建模，再运用ANSYS有限元分析软件进行模具机头的强度分析，最后用MasterCAM进行机头的仿真生程。通过以上的现代数字化技术的不断提高大大减少了试模中的损耗，并且从产品的质量、产量和效率上也有了很好的改进。

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。