The sealing and relaxation characteristics of fluoroplast-4 gaskets are studied. It is established that, at the same specific pressure, the use of wider gaskets can increase sealing of the working pressure by about 25%. The influence of the stress level and time on the value of the relaxation modulus is also studied. A safety coefficient is proposed that takes the relaxation of specific pressures into account. Results of a control experiment conducted to assess the adequacy of the relaxation model are presented along with practical recommendations.
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Translated from Khimicheskoe i Neftegazovoe Mashinostroenie, Vol. 57, No. 11, pp. 42–45, November, 2021.
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Kuzmin, A.A., Ponomarenko, E.A. & Yablokova, M.A. Evaluation of the Efficiency of Fluoropolymer Gaskets Taking Cold Flow into Account. Chem Petrol Eng 57, 970–975 (2022). https://doi.org/10.1007/s10556-022-01033-z
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DOI: https://doi.org/10.1007/s10556-022-01033-z