By the analyse of change course about low temperature pumping performance testing method of engine oil, we put forward the necessity of analysing the low temperature pumping performance particularly to the used engine oil, and the effect factor of low temperature Pumping Performance and Re-tentivity of Engine Oil are described in this article.
通过对车用发动机油低温泵送性能测试方法的变化过程的分析,提出了发动机在用油低温泵送性分析的必要性,论述了发动机油低温泵送性及其保持性的影响因素。
However, its pumping mechanism has not been fully understood and a study of its pumping performance has still been in a primary experimental stage.
但其泵送机理至今仍不十分清楚,对泵送性能的认识也仅停留在初级试验阶段,泵的设计和使用是基于大量的未经理论分析和整理的试验数据,因而存在很多不确定性因素,极大限制了迷宫螺旋泵的推广应用。
Under the condition of the same proportion,same slump,there is no significant difference on the pumping performance between the tailing dinax and the natural dinax;with the same proportion,the cohesive property and water-retaining property of the iron tailing dinax are worse than the natural dinax concrete.
研究分析表明,在用水量相同、水灰比相同、外加剂用量基本相同的情况下,尾矿砂石混凝土的坍落度小于天然砂混凝土;配合比相同、坍落度相近时,尾砂石混凝土与天然砂石混凝土泵送性能相差无几;相同配合比时,铁尾矿砂石混凝土的黏聚性和保水性略差于天然砂石混凝土。
Experiment on pump transportation behavior of high-strength concrete mixed with slay and fly-ash
掺矿渣和粉煤灰高强混凝土的泵送性能试验
Study of Pumpability of High Performance Fiber Concrete for Anchorage Zone on Very High Bridge Pylon
超高索塔锚固区用高性能纤维混凝土泵送性能研究
Performance Analysis and Experiment Study of Pumping System of Trailer Concrete Pump;
拖式混凝土泵泵送系统性能分析与实验研究
C80 concrete with high intensity and performance
C80高强高性能泵送混凝土研究与应用
Pumping of C100 Ultra High Performance Concrete(UHPC)
C100超高性能混凝土(UHPC)超高泵送
The Study on Desulphurization Pump Anti-Abrasion and Anti-Corrosion Materials and Performance
脱硫浆液输送泵材料磨蚀性与泵性能关系的研究
CFD Numerical Simulation and Experimental Study of the Pumping Mechanism and Pumping Performance of Labyrinth Screw Pump
迷宫螺旋泵泵送机理及性能的CFD数值模拟和试验研究
Application of high performance concrete pumping construction in east pumping station project in Bostan Lake
高性能混凝土泵送施工在博斯腾湖东泵站工程中的应用
Experimental Research on Restrained Shrinkage Cracking Properties of Pumping Concrete;
泵送混凝土约束收缩开裂性能评价试验研究
Influences of Anti-freezing Ingredients on the Performances of Liquid Anti-freezing Pumping Agents of Concrete;
防冻组分对液体防冻泵送剂性能影响的研究
The Research on Test for Pressure Bleeding and Properties of High Flowing Pump Concrete of C60;
C60高流态泵送砼压力泌水及其性能试验研究
Experimental study on high-flow high-performance fly ash concrete of pumping;
高流态泵送粉煤灰高性能混凝土的试验研究
The Preparation and Research of the Workability of Pumped Concrete
掺粉煤灰泵送混凝土的制备和工作性能研究
Performance computations of centrifugal pump with large blade discharge angle for handling viscous oils
大出口角叶轮离心泵输送粘油性能计算
Demand of Concrete Pumping Capability and Supply Analysis of Pumping Capability of Concrete Pumps
混凝土泵送能力需求与泵送机械的泵送能力供给分析
The Rheological Characteristics and Workability Control Methods of Pumped High-strength Lightweight Concrete;
泵送高强轻质混凝土的流变特性及其工作性能控制方法
Research on High-performance Lightweight Aggregate Used in the Pumping Lightweight Aggregate Concrete
高性能轻骨料在泵送轻骨料混凝土中的应用研究
Experimental Study on Hydraulic Performance and Wear of Double-channel Pump Delivering Solid-liquid Media
双流道泵输送固液介质的水力性能及磨损试验研究