Ucar Carbon Technology Corporation

Francis E Wise

Michael Frastaci

Robert E Smith

Allan Webster Intermill

David A Lehr

Philip D Coleman

Horace C Moncrief

Jerry L Bjornestad

Olin W Hotchkiss

A furnace apparatus and method for the lengthwise graphitization (LWG) of carbon bodies are provided which utilize U-shaped metal furnace sections mounted on stationary rib supports to contain carbon electrode bodies and surrounding thermally insulating pack material. Vertical flues are provided between parallel rows of U-shaped metal furnace sections to accelerate cooling of graphitized electrode bodies and in a further embodiment water droplets are additionally sprayed on the metal furnace sections.

Apparatus for lengthwise graphitization (LWG) of carbon electrode bodies

Electrode joint for threadably joining two abutting carbon electrode sections is provided with an elongate carbon fastening element which is force fitted into a passage extending from outside of the electrode joint through a portion of the interface contact between the abutting carbon electrode sections.

Fastening element for securing electrode joints and the electrode using

A process for treating an electrode to form a protective coating comprising applying a precursor of an impregnate material to the surface, controlling the depth of penetration, induction heating the surface under controlled conditions of power, frequency and relative velocity to bring the surface to the treat temperature and quench cooling the surface.

Method for treating a graphite or carbon body to form a protective

Growing community of inventors

Medina, OH, United States of America

Francis E Wise