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TOUGHENED GRAPHITE ELECTRODES FOR ELECTRIC ARC FURNACES

United States Patent Application

20100175506
A1
View the Complete Application at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
Toughened Graphite Electrode for High Heat Electric Arc Furnaces
The present invention is directed to a method for producing a carbon fiber-pitch binder composition, the method comprising combining surface-modified carbon fibers with a molten pitch binder such that the surface-modified carbon fibers are substantially homogeneously dispersed throughout said molten pitch binder, wherein said surface-modified carbon fibers possess a surface that has been modified in a manner that increases the dispersability of the carbon fibers into said molten pitch binder. The invention is also directed to a method for producing a toughened graphite electrode and a method for processing metal in an electric arc furnace. The invention is also directed to carbon fiber-pitch binder compositions prepared by the inventive method in which carbon fibers are substantially homogeneously dispersed in the composition.
Pappano, Peter J. (Oak Ridge, TN), Contescu, Cristian I. (Knoxville, TN)
UT-BATTELLE, LLC (Oak Ridge TN)
12/ 353,372
January 14, 2009
[0001] This invention was made with government support under Contract Number DE-AC05-00OR22725 between the United States Department of Energy and UT-Battelle, LLC. The U.S. Government has certain rights in this invention.