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- viscosity reduction ratio 降枯率
- High reduction ratio during primary and secondary crushing stage. 初段,二段等各段破碎均有大破碎比。
- The measures of Brookfield viscosity reduction of PPVC were introduced. 介绍了降低聚氯乙烯糊树脂B氏黏度的措施。
- Experimental results show that the ASM has better viscosity reduct... 结果表明,ASM的降粘效果明显,具有较好的开发应用前景。
- The viscosity reduction rate is over 85% at 240℃, 24hr, with catalyst accounting for 0.2% and toluene for 0.1%. 与助剂甲苯复配，进行了稠油化学降黏的强化实验。
- Heavy oil viscosity reduction of was studied by using toluene as additive for catalytic aquathermolysis reaction in this paper. 摘要以钼酸铵作为稠油水热裂解反应的催化剂。
- This system is low usage volume,low cost, high viscosity reduction rate,highly adaptable and stable. 该体系具有用量少、成本低、降粘率高、适应性强、稳定性好等优点。
- The copolymers of EFMA have effects on pour point depression and viscosity reduction of waxy crude oil. 合成了EFMA降凝剂,并考察了它的合成条件和降凝效果。
- The inspiratory expiratory value difference (VD) and area reduction ratio (AR) of bilateral lungs were calculated. 结果各年龄组内男女之间的VD和AR无显著性差异;
- The key was to choose high efficiency viscosity reductant. 以大庆黑帝庙稠油为原料，发烟硫酸为磺化剂，合成了稠油磺酸盐。
- The result shows that the reactive blending has a marked effect of viscosity reduction when the EPDM content in disperse phase is 20~25 phr. 结果表明，EPDM分散相浓度为20~25phr，反应共混工艺对体系的消缠降粘效果显著
- Through the comparison of numerical simulation value and experiment results, the range of reduction ratio was obtained while the tube forming ideality. 通过数值模拟与实验结果的比较，得出了获得较理想的成形薄壁筒形件时减薄率的选取范围。
- As a special hydrodynamic sound generator, ultrasonic siren has applicative effects on viscosity reduction, scale removal on electric pump well. 作为一种特殊的流体动力式声波发生器,超声旋笛在电泵井防垢降粘方面有着显著的使用效果。
- It is found that the tensile strength and the hardness of the specimen decrease, while the elongation and the reduction ratio of area increase. 在平行试样方向上施加强磁场进行退火处理后，球铁的拉伸强度、硬度降低，延伸率、断面收缩率升高。
- The properties of heavy crude oil is described and the effectiveness of diluting and viscosity reduction for heavy crude oil with naphtha-Methyl Ethyl Ketone (MEK) is analyzed. 概述了稠油的物性,分析了石脑油中加入MEK(甲基乙基酮)后对稠油的稀释降粘效果。
- The uneven distribution of the reduction ratio of Mo square bar swaged into the circular bar and the Practice calculation method of reduction ratio were discussed. 讨论了钼方坯旋锻归圆前压缩比的不均匀分布情况及其实际压缩比的计算方法。
- The mechanism of crude viscosity reduction is summarized and discussed.Wax crystal aggregate under the magnetic field can increase the polydispersity in suspension. 对原油磁化降粘的机理进行了总结和探讨,认为磁致颗粒团聚及磁场作用下分子有序排列是降粘的主要原因。
- ZHOU Feng-shan, WU Jin-guang.Mechanism of viscosity reduction for crude oil through pseudoemulsion formation [J].Oilfield Chemistry, 2002,19(4):311-315. [3]周风山;吴谨光.;稠油的类乳化成复合降粘作用机理[J]
- The rate of kinetic viscosity reduction and the value of carbon residue increased and the content of asphaltene decreased with the increase of ultrasonic action time. 随着超声波作用时间的增加,降粘率增大,残炭值升高,沥青质含量下降,表明油样发生了裂化和缩合反应。
- Using lumped mass model, we construct dynamic equation of the flexible arm as well as its Simulink model. Using Simulink model, we analyze how Coulomb friction, motor inertia and reduction ratio of gear affect system performance. 采用集中质量模型建立了柔性手臂的动力学方程及其Simulink模型,利用Simulink模型仿真分析了库仑摩擦力、电机转子惯量和齿轮减速比对系统性能的影响。
