Spiral wound gasket and fabrication method thereof

Details Spiral wound gasket and fabrication method thereof Spiral wound gasket and fabrication method thereof

1990-02-27

1992-01-21

Shoap, Allan N.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

294551, 294695, 277230, 277233, 277235R, F16J 1512, B21D 3900

Patent

active

050822969

ABSTRACT:
A spiral wound gasket is formed by winding combinedly and spirally a metal strip having at least one bend along its lateral direction and a belt-shaped filler in such a way that the metal strip and the filler are laminated together along their longitudinal direction and the filler protrudes from both lateral edges of the metal strip. The spiral wound gasket employs, as the filler, a flexible tape of carbon/carbon composites having a structure in which a carbon fiber, in the form of a bundle or string, is contained in the interior of an expanded graphite tape and the carbon fiber is located at the bend of the flexible tape formed when the laminate of the flexible tape and the metal strip in is wound. The spiral wound gasket is used as a pipe fitting etc. under high temperature and pressure conditions.

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