Oil viscosity index (VI - Viscosity Index) is a number that allows to evaluate the change in the viscosity of a lubricating oil as the temperature changes. It is calculated using the ISO 2909: 2002 method which evaluates the kinematic viscosity of oils at 40°C and 100°C. The higher thi...
improver consisting essentially of a specific polymer, capable of retaining excellent viscosity characteristic and pour point lowering ability of an alkyl(meth)acrylate, excellent in washing and dispersing actions and heat stability and useful as a lubricating agent such as for gasoline engine oil.FUKUDA...
But be careful:transmission oilshave a different SAE numbers. For example, a 75W90 transmission oil doesn't have a higher viscosity than a 15W40. Oil specifications - ACEA vs API Apart from the viscosity index, there are other factors to consider when choosing an engine oil for your vehicle...
The viscosity index, commonly designated VI, is an arbitrary numbering scale that indicates the changes in oil viscosity with changes in temperature. Viscosity index can be classified as follows: low VI - below 35; medium VI - 35 to 80; high VI - 80 to 110; very high VI - above 110....
In this paper were determined viscosity index of rapeseed oil using two methods. Viscosity index is calculated from the measured viscosity at 40 and 1000C using ASTM D 2270 and method graphically using ASTM D 341. The viscosity-temperature coefficient of rapeseed oil was calculated from the measu...
high viscosity oil 高粘石油 相似单词 blood high viscosity syndrome 【化】 血液高粘综合征 lubricating 润滑 viscosity n. 1.【术】黏稠;黏性 2.粘质;粘性 index n. 1.索引;(等于card index) 卡片索引(如图书馆中的) 2.(复数为indexes或indices)(物价或工资的)指数;[index (of sth)] (比喻)标...
4) high-viscosity index lubricating oil 高粘度指数润滑油 例句>> 5) high viscosity index 高粘度指数 1. 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...
As temperature rises, viscosity decreases, and as temperature decreases, viscosity increases. As a result, to truly determine a lubricating oil’s quality, you must also consider its Viscosity Index (VI). VI, an empirical, unit-less number, is a measure of the change ...
美 英 un.粘度指数;粘度系数 网络黏度指数改进剂 英汉 英英 网络释义 un. 1. 粘度指数 2. 粘度系数 释义: 全部,粘度指数,粘度系数,黏度指数改进剂
1. A liquid oil composition comprising: a base oil; and a viscosity improving amount of 0.05 to 10% by weight of a polymeric viscosity index (VI) improver comprising a hydrogenated AB diblock copolymer wherein: a. prior to hydrogenation ... DJ St. Clair - EP 被引量: 0发表: 2013年 Pr...