Great Lakes Carbon Corporation

Other

Sigri Great Lakes Carbon Gmbh

Lyman T Moore

Mark D Travers

Berch Y Karagoz

Donald P Allen

Martin M Turban

Joseph M Rua

Thomas E Fleckenstein

Larry E Ledford

Gregory Agnello

A lengthwise graphitization furnace for the conversion of a string of amorphous carbon bodies to graphite has an open semi-cylindrical shell of corrugated steel modules lined with cast refractory. The combination of the corrugated shell and cast refractory liner contributes to faster heat transfer by both convection and radiation, and to greater mechanical and thermal stability. The furnace is designed in modules allowing for easy replacement of worn components.

Graphitization furnace

A safety flow stopper in a water-cooled electric arc furnace electrode comprises a bob 16 held in place above a valve seat 12 by a release pin 17 resting on the bottom of the cavity in the nipple 20. If the electrode fails the release pin will no longer support the bob which will seat in the valve seat, shutting off the coolant flow and averting an explosion in the furnace.

Safety flow stopper for water-cooled electrode

In a water cooled electrode assembly for an electric arc steel furnace, a water trap manifold 14 integral with the head assembly at the upper end of said electrode.

Water trap manifold for water cooled electrodes

A water-cooled electrode for an electric arc furnace is fitted with a copper nipple 10, increased surface area through fluting or drilled or threaded passages for vastly improved cooling, joining the water-cooled and graphite portions of the electrode.

Scalloped nipple for water-cooled electrodes

A composite water-cooled electrode for electric arc steel furnaces comprises a tubular graphite body held in compression by means of tension stressed internal water supply pipe located between a metal header at one end and a hollow metal nipple at the other end of the electrode.

Composite electrode for arc furnace

A composite electric arc furnace electrode comprises a heavy-walled tubular graphite body with a sealed inner bore, a hollow nipple, a central coolant supply pipe, and a metal header assembly. If the unit fails, it is disassembled, a new graphite main tube assembled with the metal parts, and the graphite tube consumed in the normal fashion as a tip electrode.

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Niagara Falls, NY, United States of America

Lyman T Moore