Reconsideration on ConFlat Seal Mechanism by Gasket Deformation Measurements

Autor:	Mitsuyoshi Saito, Satoshi Kurokouchi, Masayuki Okabe, Shinsaku Morita, Satsuo Shinoda
Rok vydání:	1999
Předmět:	Mechanism (engineering) Materials science Gasket Mechanical engineering Electrical and Electronic Engineering Deformation (meteorology) Condensed Matter Physics Contact area Seal (mechanical) Surfaces Coatings and Films
Zdroj:	SHINKU. 42:910-917
ISSN:	1880-9413 0559-8516
DOI:	10.3131/jvsj.42.910
Popis:	A ConFlat seal mechanism is most widely used in small and/or middle-sized ultrahigh vacuum system. The existing model on its seal mechanics, however, is somewhat curious and is undoubtedly to be reconsidered.Our experiments indicated that capturing with the contact of a disk gasket and a retaining counter is not a key factor for the sealing. We tested a taper-seal mechanism, which was newly designed to improve the inefficiency of the ConFlat mechanism. It was remarked under the tightening torque of 50 kgf cm that the seal area on a taper-seal type gasket was 3 times larger than that of a conventional disk gasket. High sealing reliability was thus achieved as expected which is mainly due to its wide seal contact area realized even for rather a hard gasket material.
Databáze:	OpenAIRE
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