公开(公告)号：JPH04230994A

公开(公告)日：1992-08-19

申请号：JP5958891

申请日：1991-02-28

Applicant: CONOCO INC

Inventor： ROBAATO AARU GURIFUIN ,  KIISU EMU RUUSERU ,  TA UEI FU

IPC: C25B9/02 ,  C04B35/52 ,  C04B35/83 ,  H05B7/085 ,  H05B7/14

Abstract: PURPOSE: To provide a graphite nipple suitable for connection of a graphite electrode by containing mesophase pitch carbon fibers in a nipple extrusion blend, extruding the blend, and baking it at the specified temperature for graphitizing. CONSTITUTION: Carbon fibers manufactured from mesophase pitch having a melting point of less than 350 deg.C are mixed with cokes and a binder, a mixture is extruded to firm an extruded blend. The extruded blend is extruded to form a carbon nipple. The carbon nipple is baked at a temperature exceeding about 538 deg.C for sufficient time, then the baked carbon nipple is heated at a temperature exceeding about 2704 deg.C for graphitization. A graphite nipple suitable for connection of a graphite electrode is obtained.