Spectroscopic analysis of synthetic lubricating oil

Purpose – The paper aims to address the formulation of zirconium and oxalicum additive-based lubricants for use in slide ways to meet the demands of high positioning exactness based on reduction in stick–slip and coefficient of friction over a wide speed range and compares the same with commercially available lubricant. Design/methodology/approach – An investigation into the frictional properties and stick-slip behavior of lubricating oil is carried out using linear reciprocating tribometer and correlated with ultraviolet spectroscopic analysis. Findings – It is observed that these transition metal additive compounds support in increasing the flexibility of the molecular chains leading to improved lubricity. Originality/value – The lubricant additives considered for the current study are based on transition metals zirconium and oxalicum. It is observed that these additive compounds support in increasing the flexibility of the molecular chains, leading to improved lubricity.

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Synthetic lubricating oil fractions from ethene and gases containing ethene by polymerization II

Recueil des Travaux Chimiques des Pays-Bas ◽

10.1002/recl.19440630602 ◽

1944 ◽

Vol 63 (6) ◽

pp. 105-112

Author(s):

P. M. Heertjes ◽

W. J. Hessels ◽

H. I. Waterman

Keyword(s):

Lubricating Oil ◽

Oil Fractions ◽

Synthetic Lubricating Oil

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Research on Oil Monitoring of Heavy Vehicles Based on Information Entropy Theory

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.314-316.1391 ◽

2011 ◽

Vol 314-316 ◽

pp. 1391-1395

Author(s):

Xue Gong Liu ◽

Zhan Guo Li ◽

Zha La Wang

Keyword(s):

Probability Distribution Function ◽

Spectroscopic Analysis ◽

Transmission System ◽

Lubricating Oil ◽

Entropy Theory ◽

Analysis Method ◽

Heavy Vehicles ◽

Experiment Research ◽

Maximum Entropy Theory ◽

Oil Monitoring

This paper is mainly about the experiment research of oil monitoring for a kind of special heavy vehicle’s transmission system. The wear elements in lubrication oil of a heavy vehicle’s transmission system were analyzed by the spectroscopic analysis method, and gear’s wear status was studied. Probability density function and probability distribution function of wear information about the elements in lubricating oil were calculated by the maximum entropy theory. The running cut-off point is obtained for diagnostic criteria of the vehicle’s failure, which provided evidence for monitoring and judging the reliability of the vehicle’s wear.

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