Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference (한국윤활학회:학술대회논문집)
- 2002.10b
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- Pages.353-354
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- 2002
Deterioration of High Viscosity Index Hydraulic Fluids During Use in Construction Equipments
- Kwon, W.S. (Taedok Institute of Technology, SK Corporation) ;
- Moon, W.S. (Taedok Institute of Technology, SK Corporation)
- Published : 2002.10.21
Abstract
This study represents the newly advanced formulation of hydraulic fluids for extended drain interval and introduces the performance results of used oil samples from various excavators. The used oil samples, in this paper, show that there is a sharp change in viscosity drop and moderate additive depletion. For the extension of hydraulic fluid life. it is necessary to improve the stability of viscosity and oxidation. New target properties from the used oil analysis were proposed for extended life. Hydraulic oil with the viscosity index of 140 and improved thermal stability consists of group III base oil, showed the possibility of extension of fluid life.