POLYMERS AS A HYDRAULIC SEAL MATERIAL

Mr. Amol  M. Vibhute; Mr. Nandkumar  L. Phadke

doi:10.17605/OSF.IO/5897Z

Authors

Mr. Amol M. Vibhute LME, G..P., Miraj / DTE Mumbai, India
Mr. Nandkumar L. Phadke LPT, G. P., Miraj / DTE Mumbai, India

DOI:

https://doi.org/10.17605/OSF.IO/5897Z

Keywords:

Dynamic seals, Static seals, Elastomeric, Thermoplastics, Elastomers — Polyurethane (TPU), Elastomers, Engineered Resins, Nitrile rubber (NBR), Carboxylated Nitrile rubber (XNBR), Hydrogenated Nitrile rubber (HNBR), Ethylene Propylene rubber (EPR), Fluorocarbon Elastomers (FKM), PTFE.

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.

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