The viscosity,viscosity index and temperature sensitivity of the viscosity for these mixtures were measured using a rotational rheometer.
通过改变桐油混合物中P树脂与无机调理剂的含量,制备了一系列用于尿素包膜的桐油混合物,使用旋转粘度计研究了桐油混合物的粘度、粘度指数、粘度的温度敏感性,详细考察了组成和剪切速率对混合物粘度的影响。
The self-organizing map was used to set up the qualitative analysis model of N1R spectra-viscosity index.
对自组织神经网络仅具有的定性分析功能进行了发展,将自组织神经网络从无监督聚类方法改为有监督聚类方法,建立了近红外光谱-内燃机油粘度指数定性分析模型;从自组织神经网络连接神经元权重中提取定量信息,建立了近红外光谱-内燃机油粘度指数定量分析模型。
The significant factors of influencing the VI and freezing point of PAO can be got by variance analysis,showing the great influences of average carbon distribution on them.
利用正交实验法将2种碳数分布不同的烯烃按比例调合生产聚α-烯烃合成油,通过方差分析得到了影响合成油粘度指数和凝点的显著因素。
As a result,after clay finishing,the VI of base oil could be increased 2～9 unit,with lowered basic nitrogen,and oxidation stability could meet the requirement of MVI standard for base oil.
试验结果表明 :以我厂轻脱脱蜡油和减三线脱蜡油为原料经糠醛再抽提和白土补充精制后得到的基础油粘度指数可增加 2～ 9个单位 ,碱性氮明显降低 ,氧化安定性可以满足MVI基础油标准要
When the concentration of the tackifier becomes 20%,its viscosity can meet the needs of water-based lubricant and its VI=400.
本文介绍了一种新型的水溶性增粘剂———聚炳烯腈钠盐 ,对这种增粘剂在不同浓度和温度下的粘度变化情况进行了研究 ,添加量在 2 0wt%左右时基本能达到水基润滑液的粘度要求 ,粘度指数VI=4 0 0 ;在泵 -喷嘴剪切试验装置上进行剪切试验 ,一段时间后 ,溶液粘度下降很慢 ,完成了充分剪切 ,剪切安定性
The computing formula of equivalent viscosity coefficients of emulsions was obtained,by measuring the effective viscosity of emulsion with various oil fractions.
通过对乳化液在不同油相浓度时的有效粘度的测量,获得乳化液当量粘度系数的计算公式。
The results show that with increasing temperature,when the internal energy of water is increased that the viscosity coefficients are decreased and diffusion coefficients are increased.
研究结果表明,随着温度的升高,内能增加,粘度系数减小,扩散系数增大,且粘度系数和扩散系数符合Arrhenius行为。
The accurate dynamic penetration coefficient and viscous damping coefficient of rock are evaluated by regression analysis, and the typical model.
岩石的力—凿深特性是冲击钻进波动力学研究的一个重要边界条件和基本参量,利用两点测量法对岩石的动态凿入特性进行实验研究,并考虑了钻头端部变截面和凿入速度对力—凿深特性的影响,运用最小二乘法的曲面拟合,得出了更为精确的凿入系数和粘度系数值,并在实验的基础上综合得到粘弹性类型岩石,即泰山花岗岩力 凿深特性的一般模式。
The accurate dynamic penetration coefficient and viscous damping coefficient of rock are evaluated by regressive analysis, and the typical model of the force.
运用两点应变测量法的基本原理进行了圆柱形杆末端冲击力测试实验 ,理论值和实测结果取得了一致 ,验证了其可行性 ,并利用两点应变测量法对岩石的动态凿入特性进行实验研究 ,根据最小二乘法曲面拟合 ,得出了更为精确的凿入系数和粘度系数值 ,并在实验的基础上综合得到粘弹性类型岩石——泰山花岗岩力——凿深特性的一般模
The paper reviews in detail the developing trends of the foreign technological advances in manufacturing lube base oil which includes conventional lube base oil,high viscosity index(HVI),very high viscosity index(VHVI) and ultra high viscosity index(UHVI) base oil,synthetic base stocks,biodegradable lubricants and re-refined oil.
详细阐述了各种润滑油生产技术的发展趋势，包括传统基础油；高、极高和超高粘度指数基础油；合成基础油；可生物降解油品以及废油再生技术。
Minimum variation in viscosity with change in temperature
高粘度指数确保温度变化时最小的粘度变化。
polyacrylate-type VI improver
聚丙烯酸酯型粘度指数改进剂
Petroleum products--Calculation of viscosity index
GB/T1995-1998石油产品粘度指数计算法
Petroleum products--Computation table for viscosity indices
GB/T2541-1981石油产品粘度指数算表
Preparation and Application of Hydrogenated SIBR Used for Viscosity Index Improver
用于粘度指数改进剂的氢化SIBR的研究
It is based on high viscosity index mineral base oil and a mixed lithium/calcium soap thickener.
它由高粘度指数矿物基础油和锂/钙混合皂基增稠剂配制而成
PREPARATION OF LUBE BASE OIL WITH HIGH VISCOSITY INDEX (HVI) BY MEDIUM PRESSURE HYDROTREATING OF DEWAXED OIL AND WAX DEOILING OIL FROMNANYANG VACCUM DISTILLATE
南阳减三线脱蜡油加蜡下油中区加氢处理生产高粘度指数润滑油
Study of Manufacturing High Grade Lube Oil Base Stocks from Intermediate Crude Oil by Medium Pressure Hydrotreating Process;
中压加氢处理从中间基原油制取高粘度指数润滑油基础油研究
Preparation and Application of a Dispersing Antioxiding Viscosity Index Improver;
分散抗氧型乙丙共聚物粘度指数改进剂的制备及其应用
Research of the Producing Process of High Viscosity Index Lube Base Oil by Importing Mid Pressure Hydrotreating Processe;
加氢处理引入高粘度指数润滑油基础油生产工艺研究
Preparation of the viscosity index improvers SEP for lubricating oil and the study on its properties
润滑油用粘度指数改进剂SEP的制备及其性能研究
STUDY ON THE QUANTITATIVE ANALYSIS OF ENGINE OIL VISCOSITY INDEX BY TWO-DIMENSIONAL NEAR-INFRARED SPECTROSCOPY
二维近红外光谱定量分析内燃机油粘度指数性能的研究
Shear Stability ability of a lubricant such a grease or VI improved Oil to withstand mechanical shearing without being degraded in conslstency or viscosity.
剪切稳定性润滑产品(如润滑脂或高粘度指数油品)抵抗机械搅拌而不发生稠度或粘度降低的能力。
Their blood viscosity, plasm viscosity, red blood cell( RBC) deformed exponent were also measured.
检查全血粘度、浆粘度和红细胞变形指数。
coefficient of kinetic viscosity
动力粘性系数，动力粘度
The slurry apparent viscosity has exponent relation to the solid volume content.
矿浆表观粘度与固体体积含量呈指数关系。
Study on Velocity Exponent of the Viscous Damper and Its Engineering Applications
粘滞阻尼器速度指数及其工程应用研究
logarithmic viscosity number
对数粘[度]数，比浓对数粘度