20.500.12556/DKUM-90602 Suitability of test procedures for determining the compatibility of seal materials with ionic hydraulic fluids The compatibility of seal materials with the working fluid is crucial for the flawless, energysaving, environmentally sustainable, and safe operation of any technical system. This is especially true for hydraulic systems operating under high operating pressure. The problem of materials compatibility comes into play when either a new type of seal material or a new type of fluid comes into use. The paper discusses the research findings regarding material compatibility testing of new high-tech ionic hydraulic fluids with commonly used seal materials. Due to the completely different chemical composition of these new fluids compared to the classical mineral-based oil, for these fluids, there are no standardized testing procedures. In these cases, we can only lean on the Standards that apply to classical fluids, which can lead to incorrect results. In the forefront of the paper is the discrepancy between the results obtained by the standardized test, and the test under real operating conditions. FKM, an excellent material for seals, proved to be the most suitable in the case of using ionic hydraulic fluid, according to a standardized test. However, it failed in the comparison test under real operating conditions, as the cylinder leaked. NBR seals proved to be a better solution. ionic hydraulic fluids seal material compatibility static and dynamic test comparison of results differences test suitability ionske hidravlične tekočine združljivost tesnilnega materiala statični in dinamični preskus comparison of results razlike primernost testa true false true MDPI Angleški jezik Slovenski jezik https://www.mdpi.com/journal/polymers © 2024 by the authors Članek v reviji 2024-09-10 14:50:49 2024-09-10 14:50:50 2026-02-13 12:31:53 0000-00-00 00:00:00 2024 0 0 12 str. iss. 18, [atricle no.] 2551 Vol. 16 September 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2024-07-29 2024-09-08 2024-09-10 621.22:620.1 207019011 10.3390/polym16182551 2073-4360 polymers-16-02551.pdf polymers-16-02551.pdf 1 9C7B5B714D8E80CA2EC89731C13D3DC0 6556465d8a36311de190c924cda86bdea656e5281db965ed6fea17421d9c4054 f4020764-6f74-11ef-b637-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=184839 https://www.mdpi.com/2073-4360/16/18/2551 0 feb47564-6f74-11ef-b637-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=184840 Fakulteta za strojništvo 0 0 0