| 摘要 |
PURPOSE:To obtain a heat-resistant packing without seepage of fat and oil or the like, and replaceable easily by providing a braided member of carbon fibres around a molded member consisting of expansive graphite and carbon fibres. CONSTITUTION:A molded member is made to be a rod-shaped member by lamination and molding after adding, and then mixing, the short fibres of carbon fibres in expansive graphite particles. The carbon fibres for a braided member contain graphite fibres and semi-carbonized fibres, and are long fibres. A packing material can be obtained such that one molded member or a plurality of molded members are bundled and carbon fibres are braided therearound. A heat resistance packing can be obtained such that the packing material mentioned above is put into a mold, and then molded therein. It should be preferable in such a method that the rod-shaped molded member is braided with organic fibres and molded, after that, baked into carbonized fibres, or the braided member is baked and molded afterwards. The packing has no adhesion to the shaft and deformation, and is easy in its replacement. It has also no seepage of fat and oil or any solidification caused thereby, and has high heat resistance, thereby becoming unnecessary to perform a maintenance such as further clamping or the like. Moreover, since it has anti-activating property, there might be less hazardous in its replacement work. |
