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2015/2
Influence of dispersion medium and thickeners on tribological characteristics of sulfonate plastic lubricants
Technical sciences

Authors: Anastasiya Y. KILYAKOVA graduated from Gubkin Russian State Academy of Oil and Gas in 1998. She is Candidate of Technical Sciences, assistant professor of the Department of Chemistry and Technology of Lubricants and Chemmotology of Gubkin Russian State University of Oil and Gas. She is author of 2 manuals and a number of tutorials. E-mail: anakil@yandex.ru
Anna A. VIKULOVA graduated from Gubkin Russian State University of Oil and Gas in 2013. She is graduate student of the Department of Chemistry and Technology of Lubricants and Chemmotology of Gubkin Russian State University of Oil and Gas. E-mail: annavikulova91@mail.ru
Pavel S. POPOV graduated from Gubkin Russian State University of Oil and Gas in 2012. He is graduate student of the Department of Chemistry and Technology of Lubricants and Chemmotology of Gubkin Russian State University of Oil and Gas. E-mail: rulesfire@mail.ru

Abstract: We studied the influence of the dispersion medium and the base number of the thickener on tribological characteristics of sulphonate plastic lubricants. The following parameters were chosen for the study: the wear scar diameter, critical load and welding load. It was found that the lubricant based on P-40 oil showed best aggregate tribological characteristics, which significantly reduces the cost of lubricant. According to the research results we can conclude that antiwear and extreme pressure properties improve with increased base number of the thickener

Index UDK: УДК 621.892

Keywords: plastic lubricants, sulfonate lubricants, thickener, tribological characteristics

Bibliography:
1. Ishhuk Y.L. Sostav, struktura i svoystva plastichnykh smazok [Composition, structure and properties of lubricating greases]. Kiev: Naukova dumka, 1996, 512 p.
2. Klamann D.K. Smazki i rodstvennye produkty [Lubricants and related products]. Moskva, 1988, 488 p.
3. Bouden F.P., Teybor D. Trenie i smazka tverdykh tel [Friction and lubrication of solids], Moskva, 1968, 543 p.
4. Kostetskiy B.I. Trenie, smazka i iznos v mashinakh [Friction, lubrication and wear in machines], Kiev, 1970, 396 p.
5. Zheleznyy L.V., Lyubinin I.A. Influence of thickeners nature upon tribological characteristics of higt temperature grease. Trenie I smazka v mashinakh I mekhanismakh. [Friction and lubrication in machines and mechanisms], 2009, no. 5, pp. 17-22 (in Russian).
6. Ward B. Understanding Calcium Sulfonate Thickeners. Machinery Lubrication, 2006, no. 7, p. 58-62.

2015/1
Using poly-alpha-olefin as base of low-viscosity hydraulic oils
Technical sciences

Authors: Lilia A. RAZUVAN graduated from Gubkin Russian State University of Oil and Gas in 2014. Engineer of the 25-th State Scientific Survey Institute of Chemmotology of Military Service of Russian Federation.E-mail: Lile4ka095@mail.ru
Yury E. RASKIN graduated from Sergo Ordzhonikidze Moscow Aviation Institute in 1966. Candidate of Technical Sciences, leading researcher of the 25-th State Scientific Survey Institute of Chemmotology of Military Service of Russian Federation. E-mail: yuzy-35@mail.ru
Anastasia Y. KILYAKOVA graduated from Gubkin Russian State University of Oil and Gas in 2000. Candidate of Technical Sciences, associate Professor of chemistry and technology of lubricants and Chemmotology of Gubkin Russian State of Oil and Gas. E-mail: anakil@yandex.ru

Abstract: To improve the low temperature properties of hydraulic oils, expand their operating temperature range and increase the thermal stability of the oils the possibility of using poly-alpha-olefin as the base of hydraulic oils was investiga-ted. The purpose of this study is to develop the basis of hydraulic oils of MG-15 and MG-B-22-B class on the base of poly-alflpha-olefins. We used the method of determining the dynamic and kinematic viscosity calculation in compliance with the National State Standard-33-2000. The viscosity of the commodity hyd-raulic oils in the temperature range of application was compared with the that of the Russian poly-alpha-olefin PAO-2, PAO-4 and PAO-6. The optimum ratio of PAO 4 and PAO-2 for the base oils of MG-22-B and the ratio of PAO-2, PAO-4 with the addition of PES-7 etil-stannic liquid for the base of MG-15-B oils were determined. The results of these studies support the use of the mixture of poly-alpha-olefins as the base of hydraulic oils of MG-15 and MG-B-22-B classes

Index UDK: 665.6

Keywords: hydraulic oils, poly-alpha-olefins

Bibliography:
1. Oils MGE-4, MGE-10A. Specifications TU 38.401-58-337-2003.
2. Multigrade hydraulic oil. Specifications TU 38 101479-86.
3.
Oil spindle. Specifications TU 38 1011232-89.
4.
Hydraulic oil. Specifications TU 38 1011258-89.
5.
Oils for hydrodynamic and hydrostatic transmissions. Specifications TU 38 1011282-89.
6.
Hydraulic oil. Classification and identification. GOST 17479.3-85.
7.
Base polyalphaolefin oils. Specifications TU 0253-004-54409843-2004.
8. Tsvetkov O. Synthesis and properties of PAO lubricants. Science and Technology of hydrocarbons, 2003.
9. A report on exploratory work. “Determining the possibility of creating a unified hydraulic oils class MG-15 and MG-B-22-B with improved performance characteristics PAO” 25 Defense Research Institute, 2005.
10. Report on the research paper “Development of the project technical requirements for advanced unified hydraulic oils of MG-15 and MG-B-22-B for hydraulic drives of various types of military ground vehicles”, Phase 2, R & D no. 2.06.04, code “Wagga 06”, 25 Research Institute of the RF Ministry of Defense.