Accelerated wear testing of polyurethane hydraulic seal |
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| Institution: | 1. School of Aerospace Engineering, Beijing Institute of Technology, Beijing, 100081, China;2. State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081, China;1. School of Mechatronics and Engineering, Harbin Institute of Technology, Harbin, China;2. School of Naval Architecture and Ocean Engineering, Harbin Institute of Technology, WeiHai, China;1. Ik4- Tekniker, Tribology Unit, Iñaki Goenaga 5, Gipuzkoa, 20600 Eibar, Spain;2. ETSI-BILBAO, Department of Mechanical Engineering, University of Basque Country, Alameda Urquijo, 48013 Bilbao, Spain;3. Anton Paar, Rue de la Gare 4, CH-2034 Peseux, Switzerland;4. EMPA, Laboratory of Materials and Nanostructures, Feuerwerkstrasse 39, CH-3602 Thun, Switzerland;1. Instituto Politécnico Nacional, SEPI-ESIME, UZ, IPN, Grupo de Tribología, Col. Lindavista, México City C.P. 07738, Mexico;2. Instituto Politécnico Nacional, SEPI-ESIME, UZ, IPN, Col. Lindavista, México City C.P. 07738, Mexico |
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| Abstract: | The wear characteristics of a polyurethane (PU) hydraulic seal were investigated using a hydraulic seal tester and a pin-on-plate reciprocating tribo-tester, and the results were compared to field data with the aim of developing an accelerated wear test method for hydraulic seals. Tests using a hydraulic seal tester and a pin-on-plate reciprocating tribo-tester were found to reproduce abrasive wear of PU from the field. However, a significant compression set was observed from the test using the hydraulic seal tester. Motivated by the occurrence of abrasive wear from the field, the discolored lubricant and the lubricant with alumina particles were further used for testing using the pin-on-plate reciprocating tribo-tester. The height decrease data of the sealing surface showed that the wear was accelerated by factors of 2.1–3.4 using these degraded lubricants. The outcomes of this work are expected to aid in the design of reliable accelerated life testing for hydraulic seals. |
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| Keywords: | Abrasive wear Lubricant Particle Polyurethane Seal |
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