To provide highly heat resistant linking parts for electrode capable of withstanding to a graphitization process at ≥3000°C and method for producing the same by including carbon fibers activated by oxidation into the linking parts comprising carboneceous materials, applying a carbonated coating on the surface of the carbon fibers.
The method for producing the linking parts comprises following steps, a first step activating the surface of the carbon fibers by oxidation, a second step forming a surface coating containing coating material comprising wax, pitch, natural resin, thermoplastic polymer or duroplastic polymer on the fiber, a third step carbonizing the coating at 750-1,300°C, a 4th step mixing the product with cokes having an average particle diameter of 0.05-4mm or pitch having softening temperature of 70-150°C and other additives in some case, and molds into a cylindrical body, a 5th step carbonizing and succeedingly graphitizing the cylindrical body, and a 6th step processing the graphitized formed body by a lathe into the linking parts having a screw groove.
BREHLER KLAUS-PETER DIPL CHEM
HEINE MICHAEL
