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Influence of partial release on sealing performance of elastomer O-rings at low temperatures

  • For many sealing applications rubbers are applied due to their special material properties and easy use. In many applications as e.g. in aviation, traffic or process technology the material can be exposed to low temperatures during operation. Therefore it is important to know the material behaviour at those low temperatures to determine the temperature range that allows a safe operation of the seal. As rubbers are used as main sealing materials for containers for low and intermediate level radioactive waste and as additional component to metal seals in spent fuel and high acitve waste containers, a comprehensive elastomer investigation program is run at BAM. This program comprises investigations of elastomer overall performance, durability, influence of gamma irradiation and low temperature behaviour. In this paper we focus on the behaviour of elastomer seals below ambient temperatures after a fast partial release. Despite the primarily static application conditions of many sealsFor many sealing applications rubbers are applied due to their special material properties and easy use. In many applications as e.g. in aviation, traffic or process technology the material can be exposed to low temperatures during operation. Therefore it is important to know the material behaviour at those low temperatures to determine the temperature range that allows a safe operation of the seal. As rubbers are used as main sealing materials for containers for low and intermediate level radioactive waste and as additional component to metal seals in spent fuel and high acitve waste containers, a comprehensive elastomer investigation program is run at BAM. This program comprises investigations of elastomer overall performance, durability, influence of gamma irradiation and low temperature behaviour. In this paper we focus on the behaviour of elastomer seals below ambient temperatures after a fast partial release. Despite the primarily static application conditions of many seals their behaviour after partial compression release is of interest with regard to potential decrease of leak-tightness. For this investigation a special setup was designed which allows the partial release of compressed seal systems at different temperatures accompanied by leakage rate measurements. The results for FKM seals are presented and discussed.zeige mehrzeige weniger

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Autor*innen:Matthias JaunichORCiD, Tobias Grelle, Dietmar Wolff
Dokumenttyp:Beitrag zu einem Tagungsband
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):Technomer 2015 - 24. Fachtagung über Verarbeitung und Anwendung von Polymeren
Jahr der Erstveröffentlichung:2015
Herausgeber (Institution):Technische Universität Chemnitz
Verlagsort:Chemnitz
Erste Seite:P 3.7, 1
Letzte Seite:6
Freie Schlagwörter:Compression set; Glass-rubber transition; O-ring; Partial release
Veranstaltung:Technomer 2015 - 24. Fachtagung über Verarbeitung und Anwendung von Polymeren
Veranstaltungsort:Chemnitz, Germany
Beginndatum der Veranstaltung:12.11.2015
Enddatum der Veranstaltung:13.11.2015
ISBN:978-3-939382-12-6
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:20.02.2016
Referierte Publikation:Nein
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