挤出

In common glass fiber reinforced polyolefine pipe, when the volume faraction is less than the critical value, the glass fiber can not act as reinforcement, on the contray, it would reduce the whole intensity of the compound material. However, when extruded in combined stress field, the extend intensity of the compound system increases when the volume fraction of glass fibers is less than the critical value. When the glass fiber volume fraction is higher than the critical value, the required glass fiber volume fraction of compound fibers extruded in the combined stress field is less than theory value.

一般玻璃纤维增强管材在常规挤出时当添加的玻璃纤维体积含量小于临界体积分数(当添加的玻纤的复合体系拉伸强度等于基体聚合物材料的拉伸强度时的玻纤体积分数)时，玻纤起不到增强的作用，反而会使复合材料的整体强度降低；但在复合应力场下挤出时，当添加的玻纤含量小于临界体积分数时，复合体系的拉伸强度不但没有降低反而升高了；当添加的玻纤含量大于临界体积分数时，复合体系要达到同样强度，经过复合应力场的玻纤增强管材需要的体积分数小于理论值。

Rigid PVC pipe production line is mainly used in the manufacture of the plastic PVC pipes with various tube diameters and wall thickness in the aspects such as the agricultural and nonstructural plumbing, cable laying etc. Thin set is composed of the conical twin-screw extruder, vacuum forming table , dragger, cutter, stirring up rack etc. The screws extruder and the extractor adopt the imported AC frequency employ the superior goods. The prime mover has the traction modes such as to claw, three-claw and so on. It may choose the saw blade cutting type or the planet cutting type. It is additionally attached with measuring apparatus and the intensifying device. The unit is of the reliable performance and high production efficiency. This company may allocate the special installation for the manufacture of the inner wall spiral coil and core ply blister tube set according to the clients requirements.

硬质PVC 塑胶管材出产线主要有阿谁与出产农用给排水、建筑给排水、线缆铺设等方面的各类管径、壁厚的塑胶PVC管材，该机组由锥形双螺杆挤出机、真空定形台、牵引机、翻料架等构成螺杆挤出机及牵引机采用进***流变频调速设置，真空泵以及牵引机电均采用优质产品牵引有二爪、三爪、四爪、六爪等牵引体式格局可选用锯片或者行星切割形式，另可计长及增厚装置，机组机能可靠，出产效益高，本公司可更具客户的要求，配备布置专用装置出产螺旋消音管以及芯层发泡管机组

With the development of the extrusion products and new ways, people pay more attention to extrusion theories.

随着塑料挤出成型中新产品、新工艺的不断涌现，人们对挤出理论的研究也愈来愈重视。

Reinforce pipe technic has been widely studied, and most investigations used unidirectional stress field. The Reinforce technic is restricted on using the gyrate of core rod to increase hoop shear stress field, which is easy to cause extrusion instability and forming difficulty, and the production efficiency is far less than that of industry production.

国内外学者就管材的增强技术进行了大量的研究，大多的研究都是采用单方向的应力场进行的；增强技术仅停留在小尺寸口模管材的挤出或芯棒的转动来施加周向应力场，并且工艺上容易造成挤出的不稳定，以及定型的困难，生产效率与工业化相比相去极远。

A fuzzy control system incorporated with sectional integral compensation is introduced,and the working principle of the contrl system,the determination of the rule of the fuzzy control and the realization of the adjusting parameter and temperature control system are described indetail.

在塑料挤出过程中，温度控制的效果直接影响挤出制品的质量，包括制品表面的残余应力、收缩率及制品质量的稳定性等。温度控制装置的可靠性及温度控制的精度是保证制品品质的关键因素之一[1] 。

Then along with the consumption of the liquid aniline,the aniline in the gas phase will gradually liquidize and react immediately.

苯胺在挤出机内呈现气相和液相两种状态，因而该反应挤出过程为一非均相反应过程。

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。

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。

Powerful professional technical team to provide you with the most perfect pre-sales, after-sales service leading products have SHJS50/100, 65/150, 75/180, 95/200 series of dual-band extruder; SHJ20, 35,50,60,65 , 75,95 series twin-screw extruder; SJ30, 45,60,80,90,120,150 series single-screw extruder.

强大的专业技术队伍为您提供最完善的售前、售后服务主导产品有SHJS50/100、65/150、75/180、95/200系列双阶挤出机；SHJ20、35、50、60、65、75、95系列双螺杆挤出机；SJ30、45、60、80、90、120、150系列单螺杆挤出机。

The impact of various process conditions on extrusion and pelletizing is studied, including the change of extrusion speed, die head temperature and screw types. An initial study on the impact of different pressing conditions on the product is carried out.

进行了各种相关工艺条件对挤出造粒的影响，包括挤出速度、模头温度及螺杆形式和定型模具对挤出成型的研究；初步进行了不同压制条件对制品影响的研究。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。