Filled tetrafluoroethylene (TFE) backup rings offer superior resistance to extrusion, wear, deformation and cold flow in dynamic and static O-ring sealing applications. TFE compounds consisting of various concentrations (5 - 60%) of inorganic fillers such as glass, molybdenum disulphide, graphite and bronze are the most commonly used materials for backup rings. An important consideration in the use of these filled materials is that hard mating surfaces be used to minimize abrasive wear. However, recently developed organic-type fillers have extended the utility of filled backup rings to applications involving non-hardenable mating surfaces such as hard anodized aluminum and titanium.
Filled TFE Anti-Extrusion Rings For O-ring Packings and Other Seals
Sae Technical Papers
Aerospace Fluid Power and Control Systems Technologies ; 1976
1976-10-04
Conference paper
English
Automotive engineering | 1987
Automotive engineering | 1987
Fluid Power Reference Issue Section 5:Fluid seals and packings
Automotive engineering | 1982
Fluid power reference issue Section 5:Fluid seals and packings
Automotive engineering | 1981
Fluid power reference issue Section 5:Fluid seals and packings
Automotive engineering | 1980