Inkqubo yeMvelisoI-Semi GPC (SGPC) isuka kwi-insulation layer ye-acheson furnace.Iqondo lobushushu le-graphitization likuluhlu.of 1700-2500ºC. yeyemveliso ye-graphitization yobushushu obuphakathi. Yirecarburizer yoqoqosho ngeIkhabhoni esisigxina ephezulu, umxholo wesulfure ephantsi, isantya sokuchithwa ngokukhawuleza kunye nezinga eliphezulu lokufunxa.