METHOD OF PRODUCING GASKET AND GASKET

摘要

A method of producing a gasket in which burrs can be prevented from being formed, and a mold failure can be suppressed, and a gasket are provided. A method of producing a gasket includes: a step S1 of preparing a metal mesh member and expanded graphite; a step S2 of placing the metal mesh member around the expanded graphite in a manner that a long belt-like composite body in which the expanded graphite is enveloped by the metal mesh member is formed; a step S4 of adjusting the shapes of longitudinal end portions of the composite body in a manner that, in the short-side direction of the composite body, the width dimensions of the longitudinal end portions of the composite body are smaller than the width dimension of a longitudinal middle portion of the composite body; a step S5 of spirally winding the composite body in a manner that a tubular body in a multiply wound state in which an axial direction coincides with the short-side direction of the composite body is formed; and a step S6 of compress molding the tubular body in the axial direction of the tubular body.

主权项

1. A method of producing a gasket configured by using a metal mesh member and expanded graphite, wherein the method has steps of:
preparing the metal mesh member and the expanded graphite; placing the metal mesh member around the expanded graphite in a manner that a long belt-like composite body in which the expanded graphite is enveloped by the metal mesh member is formed; adjusting shapes of longitudinal end portions of the composite body in such a manner that, in a short-side direction of the composite body, width dimensions of the longitudinal end portions of the composite body are smaller than a width dimension of a longitudinal middle portion of the composite body; spirally winding the composite body in a manner that a tubular body in a multiply wound state in which an axial direction coincides with the short-side direction of the composite body is formed; and compress molding the tubular body in an axial direction of the tubular body.