METHOD OF MANUFACTURING METAL GASKET

摘要

A method of manufacturing a metal gasket having a substrate formed by laying down a rubber coating layer on the surface of a sheet metal through a priming and an adhesive agent and having at least a fluid passage hole and an annular bead surrounding the fluid passage hole. The method is characterized in that a sheet metal having low temperature age hardening properties is used as the sheet metal of the substrate, the priming is applied to the sheet metal of the substrate and dried at a temperature lower than the low temperature age hardening temperature of the sheet metal, the annular blade is formed on the sheet metal by pressing, and the sheet metal is age-hardened while the priming is baked at the low temperature age hardening temperature of the sheet metal of the substrate. Thus, the metal gasket having the annular bead hard to be deformed even if collapsed and excellent durability can be provided.