Sealing Characteristics of an Annular Wedge-Shaped Gasket

Autor:	Yoshio Matsuzaki, Kazuo Hosokawa, Koichi Funabashi
Rok vydání:	1992
Předmět:	Engineering drawing Materials science Mechanics of Materials Mechanical Engineering Gasket Ball (bearing) Compression test Conical surface Work hardening Composite material Deformation (engineering) Industrial and Manufacturing Engineering
Zdroj:	TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C. 58:2186-2191
ISSN:	1884-8354 0387-5024
DOI:	10.1299/kikaic.58.2186
Popis:	The authors have investigated the sealing characteristics between the surface of an annular wedge-shaped plastic gasket and a smooth seal face of a rigid ball in static contact. The following results were obtained from gas leak tests, calculation of the deformation of a wedge-shaped gasket and a compression test. ( 1 ) In order to seal tightly, a contacting width of a wedge resulting from the plastic deformation of a gasket was required because of the work hardening of the surface irregularities on the gasket. ( 2 ) The contacting width of a wedge increased with a decrease in the conical half-angle of the seal face, θ. Therefore, the linear sealing load, Pc/l, decreased with a decrease in the θ-values. For example, the value of Pc/l at θ=15°was about 0.5 times that at θ=90°. ( 3 ) The recommended values of θ were in the range from 10°to 35°, and it was possible to forecast the Pc/l-values corresponding to that range.
Databáze:	OpenAIRE
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