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说明：双击或选中下面任意单词，将显示该词的音标、读音、翻译等；选中中文或多个词，将显示翻译。
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1) single screw
单螺杆
1.
This paper analyzes principle of extrusion recycling and characteristics of various applications based on characteristics of PET film and theory of macromolecule melting steam,especially analyzes and makes a comparison of different features and affection for index of pellalier between single screw and twin screw.
着重分析对比了挤出回收工艺中单螺杆和双螺杆的不同特性和对回收造粒的理化指标的影响。
2.
An approximate analytical model describing the melt conveying under the effect of single screw vibration was established by using the self-modified Tanner constructive model,and the coefficient reflecting the effect of vibration force field on the apparent viscosity of the melt was formulated according to the theory of equal viscosity dissipation energy.
采用自行修正的Tanner本构模型建立了单螺杆振动诱导塑化挤出机在熔体输运过程中的近似解析模型,根据黏性耗散功相等推导出了振动力场对熔体表观黏度的影响系数;并在单螺杆振动诱导塑化挤出机上就振动力场对聚合物熔体输运过程的影响进行了实验研究,分析了螺杆振动频率与振幅对挤出压力和挤出特性的影响规律。
3.
The extruding molding process of ultrahigh molecular weight polyethylene (UHMWPE) on a single screw extruder was analyzed, while the mathematic equation to calculate the total extruding press and the theory dealing with the melting mechanism of the raw material were established.
为了给超高分子量聚乙烯(UHMWPE)的挤出成型加工技术及设备开发提供理论基础,对UHMWPE单螺杆挤出机挤出成型过程进行了分析,建立了挤出压力的数学模型以及原料的熔融过程理论,提出了能够正常挤出的两个基本条件:即P3max>PN和熔融过程必须充分,建立、丰富和完善了高黏度材料挤出成型理论。
2) single-screw
单螺杆
1.
Transform of heat energy and power in EXT single-screw extruder with self-heating;
EXT单螺杆自热膨化机功热转化分析
2.
On the basis of the experience carried out by the former and the author with the successive visual single-screw extruder, the author sums up the phenomena and deduces the physical model of the whole extrusion procession in the single-screw extruder.
在前人与作者在单螺杆挤出机上研究的基础上,作者总结出整个单螺杆挤出机的现象和物理模型,根据物理模型得到的数学模型用来得到整个单螺杆挤出过程的综合模型。
3.
In this paper, the author adopted the software MathCAD to analyze the classical theories for different stages of single-screw extrusion, in order to offer facilities for readers to investigate the influences of different parameters on extrusion processing, and check the screw parameters, polymer characteristics and operating conditions.
本文采用MathCAD数学分析软件对单螺杆挤出过程各段的经典理论进行分析求解,以方便读者对挤出过程各参数间影响关系进行详细分析,对螺杆参数、物料性能和工艺条件进行全面验算。
3) single-start screw,single thread screw
单螺纹螺杆
4) Single Screw Pump
单螺杆泵
1.
Research on Enveloping Boring Method for Inner Spiral Surface of Single Screw Pump Stator;
单螺杆泵定子内螺旋曲面包络镗削技术研究
2.
Design and application of GD135-3 type supper-short single screw pump;
GD135-3型超短长度单螺杆泵的设计
3.
Running faulty and type selection process are introduced for the slurry pump in phosphoric acid tank area, summarization is made for type selection of slurry pump, as well as for application effect after its reformation; by means of reformation for coupling of single screw pump imported, running rate is increased by 1% , phosphoric gain rate is increased by 3%.
介绍磷酸罐区泥浆泵的运行故障和改型过程,总结了泥浆泵选型及改造后的使用效果,通过对进口单螺杆泵联轴节的改造,运转率提高1％,磷酸装置磷得率提高3％。
5) single progressive cavity pump
单螺杆泵
1.
Startup torque dynamic model of single progressive cavity pump in surface-driven pumping system;
单螺杆泵采油系统启动扭矩动力学模型研究
2.
The stator of the general single progressive cavity pump is studied in this paper,using finite element analyzing software,at 5 MPa uniformity pressure of the stator,which concluded the stress,the strain and inner-figure deformation of the progressive cavity pump stator,the stator rubber and the stator steel thimble.
利用ANSTYS有限元分析软件对常规单螺杆泵的定子进行研究,在定子承受5 MPa均匀压力作用下,得出了定子、定子橡胶和定子钢套的应力、应变和内轮廓的变形量;分析了常规单螺杆泵定子变形的特点及规律。
3.
The rules of the single progressive cavity pump pressure modeling and transfering were studied based on the theory analysis.
通过理论分析,得出了单螺杆泵压力的产生和传递规律。
6) single bend PDM
单弯螺杆
1.
The influences of the structure bend angle of 120mm single bend PDM, stabilizer clearance and deviation angle on friction drag of running PDM were calculated and analyzed.
应用非线性有限元方法,研究了侧钻水平井钻井过程中,弯外壳螺杆钻具在套管内下入可行性的问题,计算了Φ120单弯螺杆钻具结构弯角、稳定器间隙以及井斜角对螺杆钻具下入摩阻的影响,并给出了使得螺杆顺利下入时螺杆之上钻具的长度,以此判断螺杆是否需要借助外力就能安全下入套管内。
补充资料：单螺杆泵的选型要点
1.单螺杆泵的压力确定： 单螺杆泵最大输出压力是根据衬套级数即衬套的导程数来确定： 1级：最高工作压力为0.6 MPa； 2级：最高工作压力为1.2 MPa； 4级：最高工作压力为2.4 MPa； 由于输送介质情况不同，对于含有严重磨损性的介质，请参照表一选择衬套级数。 表一：根据介质的磨损性选择衬套级数 磨损性 一级 二级
无 0.6MPa 1.2MPa
一般 0.4MPa 0.8MPa
严重 0.2MPa 0.4MPa
2.单螺杆泵转速的选择：
单螺杆泵由于其结构特点，大部分使用在输送较高粘度的液体及含有颗粒的液体，因此其转数的选择非常关键，根据经验，列出表二、表三，您可根据具体情况综合考虑。 表二：根据介质的磨损性选择泵转速 磨损性 介质名称 转速（rpm）
无 淡水、促凝剂、油、浆汁、肉沫、油漆、肥皂水、血液、甘油 400-1000
一般 泥浆、悬浮液、工业废水、油漆颜料、废丝水（糖）、灰浆、鱼、麦麸、菜籽油过滤后的沉积物 200-400
严重 石灰浆、粘土、灰泥、陶土 50-200
*表中给出了所输送的具体介质及其磨损特性的特例，请注意介质的特性随其浓度和温度的变化而变化。
*当泵的规格大时，转速应选低一些。 表三：根据介质粘度选择泵转速 介质粘度（cst） 1-1000 1000-10000 10000-100000 100000-
1000000
转速（rpm） 400-1000 200-400 <200 <100
*在选择转速时也要根据经验，因为一些其他因素也影响着转速的选择，在最后确定了上述数值的同时最好与生产厂家协商。
3.单螺杆泵衬套橡胶材料的选择： 单螺杆泵衬套为橡胶制品，也是单螺杆泵的一个易损件，它的选择好坏，直接影响衬套的寿命，一般正常情况下衬套的寿命为3-6个月，如果选用不当，衬套可能从钢管中脱落或橡胶掉块。所以要求我们对橡胶的基本特性及橡胶对各种不同介质的适应性有所了解，根据我们的经验列出表四、表五。 表四：橡胶基本特性 橡胶特性 丁晴橡胶NBR 氯丁橡胶CR 氟橡胶PPM 乙丙橡胶EPDM
耐最高温度 +120°C +110°C +200°C +150°C
耐磨性 优 很好 优 很好
耐老化性 很好 很好 优 优
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条
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