Graftech International Holdings Inc.

Ucar Carbon Company Inc.

Jpmorgan Chase Bank N.a., As Collateral Agent

Philip Dennis Coleman

Daniel Witold Krassowski

Michael Frastaci

Aaron Tomasek

Brian Bowman

Chong Chen

Marco Napolitano

Greg E Murray

James Joseph Pavlisin

Robert E Smith

Paul Stephen Sirocky

Charles Irsak

Gregory E Murray

Lionel D Burton Batty

Diane M Artman

Juan Morales

Daniel W Krassowski

An embodiment disclosed herein includes a monolithic graphite electrode. The electrode has a main body having a length of more than 3050 mm. Another embodiment disclosed herein includes an electrode column comprising a plurality of monolithic graphite electrodes. The column has a length of more than 3050 mm of electrode per joint. A further embodiment discussed herein is the practice of increasing the length of the electrode to minimize the occurrence of an electrode joint in the electrode column for a given length. This practice will improve efficiencies for both electrode manufacturers as well as electric arc furnace operators.

Long length electrodes

A method of forming a graphitic carbon body employs compression and resistance heating of a stock blend of a carbon material and a binder material. During molding of the body, resistance heating is accompanied by application of mechanical pressure to increase the density and carbonization of the resulting preform body. The preform can then be subjected to a graphitization temperature to form a graphite article.

High porosity/low permeability graphite bodies and process for the production thereof

A graphite electrode exhibits oxidation resistance by modifying the outer radial surface characteristics. The outer radial surface may be modified by providing a textured portion which improves water flow while minimizing water absorbtion. Alternately, a layer of flexible graphite or plurality of particles of exfoliated graphite may be disposed on the outer radial surface of the electrode body.

Graphite electrode

Graphite electrodes

A method of processing light fraction tar includes pre-heating the light fraction tar before directing it through a reactor. The reactor has a top and a bottom and a surface spanning between said top and said bottom. A film of the light fraction tar flows down the surface under the force of gravity and with heated gas blowing thereon. The portion of the film that reaches the bottom of the reactor has improved properties making it more widely useful for carbon products.

Falling film reactor for light tar oxidation

A pin for use in connecting graphite electrodes into a joint, where the pin has at least one male tang having a tang factor, defined as the ratio of male tang length to diameter of the electrode into which hit is to be threaded, of at least about 0.60.

Optimized graphite electrode pin configuration

Growing community of inventors

Avon, OH, United States of America

Philip Dennis Coleman