A More Precise Determination of Gear Oil Viscosity at Low Temperatures

被引：0

作者：

Kenneth O.Henderson ^{[1
]}

Joseph T.Mastropierro ^{[2
]}

机构：

[1] McEinri Associates LLC

[2] Cannon Instrument Company

来源：

润滑油 | 2012年 / 27卷 / 01期

关键词：

dynamic viscosity; low temperature viscosity; gear oil viscosity; ASTM D2983; ASTM D6821;

D O I：

10.19532/j.cnki.cn21-1265/tq.2012.01.010

中图分类号：

TH186 [生产技术管理];

学科分类号：

0802 ;

摘要：

Low temperature fluidity of gear oils is an important fluid property as it directly impacts the useful life of a gear set.This paper compares low temperature fluidity measurement precision of ASTM D6821 and ASTM D2983.Both tests are identical in the way they thermally condition the sample prior to viscosity measurement.While ASTM D2983 is cited in many current specifications,ASTM D6821 offers users and formulators a more accurate estimate of gear oil low temperature fluidity.The primary benefit in using ASTM D6821 is better precision.ASTM D6821 accomplishes this by automating the steps from prior to preheat through to viscosity measurement at end of test.

引用

页码：45 / 49

页数：5

共 6 条

[1] Performance Specification:LubricatingOil,Gear,Multipurpose. MIL-PRF-2105E . 1995
[2] Channel Point of Lubricating Oils,FED-STD-791D Federal Standard:Testing Method of Lubricants,Liquid Fuels,and Related Products. FTM 3426 . 2007
[3] Standard Test Method for LowTemperature Viscosity of Drive Line Lubricants in a Con-stant Shear Stress Viscometer. ASTM D6821-02 . 2007
[4] Automotive Gear Lubricant Viscosity Classifica-tion. SAE J306 .
[5] Standard Test Method for Low-Tem-perature Viscosity of Lubricants Measured by BrookfieldViscometer. ASTM D2983-04 .
[6] W A Lloyd,J M Perez,K O Henderson,et al.Viscosity ofDrive-Line Lubricants by a Special Mini-Rotary Viscom-eter Technique. SAE Paper 1999-01-3672 .

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