POLYMERS AS A HYDRAULIC SEAL MATERIAL
##plugins.themes.academic_pro.article.sidebar##
Downloads
##plugins.themes.academic_pro.article.main##
Abstract
Current trends concerning hydraulic cylinder sealing systems are aimed at decreasing energy consumption which can be materialized by minimizing leaks and reducing friction. The latest developments in the field of materials and sealing system geometries as well as modern simulation possibilities allow maximum performance levels of hydraulic cylinders. Reducing friction is possible by hydro-dynamic separation of the sliding and sealing points already at very low velocities and by using materials, such as plastomers, from polytetrafluoroethylene (PTFE) (virgin PTFE and filled PTFE). It is within this context that this paper discusses a theoretical and experimental study focused on the tribological behavior of coaxial sealing systems mounted on the pistons of hydraulic cylinders.
For the analyzed working conditions related to pressure, speed, and temperature, the paper concludes with a set of criteria for the selection of the optimum seal material so as to maximize energy efficiency.
##plugins.themes.academic_pro.article.details##
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
References
- Nikas, G. K. Elastohydrodynamics and mechanics of rectangular elastomeric seals for reciprocating piston rods. ASME Journal of Tribology, 2003, 125(1), 60-69.
- Nikas, G. K., Burridge, G., and Sayles, R. S. Modelling and optimization of rotary vane seals.Proceedings of the IMechE, Part J: Journal of Engineering Tribology, 2007, 221(J6), 699-715.
- Nikas, G. K. Determination of polymeric sealing principles for end user high reliability.Technical Report DOW-08/01. Department of Mechanical Engineering, Tribology Group, Imperial College London, England, 2001.
- Nikas, G. K. Research of fundamental sealing mechanisms needed for zero-leakage highreliability rotary vane actuators. Technical Report SMI-10/04. Department of Mechanical Engineering, Tribology Group, Imperial College London, England, 2004.
- Nikas, G. K, and Sayles, R. S. Nonlinear elasticity of rectangular elastomeric seals and its effect on elasto hydrodynamic numerical analysis. Tribology International, 2004, 37(8), 651-660.
- Parker , Engineered Polymer System Division , Fluid Power Seal Design Guide, Catalogue EPS 5370, 6/2014.
- SKF , Hydraulic seals , catalogue , Aug 2014.
- Justyna Skowro´nska* ,Andrzej Kosucki and ŁukaszStawi´nski , Overview of Materials Used for the Basic Elements of Hydraulic Actuators and Sealing Systems and Their Surfaces Modification Methods,Materials2021,14,1422.https://doi.org/10.3390/ma14061422.https://www.mdpi.com/journal/materials.