| 摘要 |
A cylindrical gasket (27) is equipped with: a reinforcing material (70) comprising a compressed belt-like metal mesh (5); a heat-resistant material (71) filling the openings in the belt-like metal mesh (5) of the reinforcing material (70); and air holes that are dispersed throughout the reinforcing material (70) and the heat-resistant material (71). The inner circumferential surface (23), outer circumferential surface (24), and circular end faces (25, 26) of the cylindrical gasket (27) form smooth surfaces wherein the heat-resistant material (71) and the reinforcing material (70) are mixed together, and the respective volume contents of the reinforcing material (70), the heat-resistant material (71), and the air holes in the cylindrical gasket (27) are 32-60%, 5-58%, and 10-35%. |
