EP0142476A3 - A composite prebaked carbon electrode intended to be used in electric arc furnaces - Google Patents

A composite prebaked carbon electrode intended to be used in electric arc furnaces Download PDF

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Publication number
EP0142476A3
EP0142476A3 EP84830293A EP84830293A EP0142476A3 EP 0142476 A3 EP0142476 A3 EP 0142476A3 EP 84830293 A EP84830293 A EP 84830293A EP 84830293 A EP84830293 A EP 84830293A EP 0142476 A3 EP0142476 A3 EP 0142476A3
Authority
EP
European Patent Office
Prior art keywords
arc furnaces
electric arc
carbon electrode
composite
prebaked carbon
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP84830293A
Other languages
German (de)
French (fr)
Other versions
EP0142476A2 (en
Inventor
Italo Letizia
Mario Cavigli
Paolo D'ambosio
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Elettrocarbonium SpA
Original Assignee
Elettrocarbonium SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Elettrocarbonium SpA filed Critical Elettrocarbonium SpA
Publication of EP0142476A2 publication Critical patent/EP0142476A2/en
Publication of EP0142476A3 publication Critical patent/EP0142476A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B7/00—Heating by electric discharge
    • H05B7/02—Details
    • H05B7/06—Electrodes
    • H05B7/08—Electrodes non-consumable
    • H05B7/085—Electrodes non-consumable mainly consisting of carbon

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Discharge Heating (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Ceramic Products (AREA)

Abstract

A prebaked carbon electrode intended to be used in electric arc furnaces and, more particularly, in submerged arc furnaces such as the furnaces normally used for the production of silicon metal, phosphorus, ferro-alloys, and other metals, having a body and one or more joints to create an electrode column, the electrode having a composite construction comprising an outer portion or "rind" made from a first material and an inner portion or "core" made from a second material, wherein for example the first material is an an electrographite based material and the second material is an anthracite based material, the elec­ trode being obtained by extrusion, vibration, molding or by any other suitable process known in the art. Quite generally, both the "rind" and the "core" can consist of any type of carbonaceous material.
EP84830293A 1983-11-11 1984-10-31 A composite prebaked carbon electrode intended to be used in electric arc furnaces Withdrawn EP0142476A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT49329/83A IT1171887B (en) 1983-11-11 1983-11-11 PRE-COOKED CARBON ELECTRODE WITH COMPOSITE STRUCTURE FOR ELECTRIC ARC OVENS
IT4932983 1983-11-11

Publications (2)

Publication Number Publication Date
EP0142476A2 EP0142476A2 (en) 1985-05-22
EP0142476A3 true EP0142476A3 (en) 1985-08-14

Family

ID=11270368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84830293A Withdrawn EP0142476A3 (en) 1983-11-11 1984-10-31 A composite prebaked carbon electrode intended to be used in electric arc furnaces

Country Status (3)

Country Link
EP (1) EP0142476A3 (en)
IT (1) IT1171887B (en)
NO (1) NO844492L (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT401303B (en) * 1993-09-06 1996-08-26 Voest Alpine Ind Anlagen METHOD FOR PRODUCING A FLOOR ANODE FOR A METALLURGICAL VESSEL
DE19850735C1 (en) * 1998-11-04 2000-09-21 Conradty Nuernberg Gmbh C Electrode for electrometallurgical processes
EP1406473A1 (en) * 2002-10-04 2004-04-07 Sgl Carbon Ag A composite prebaked carbon electrode intended to be used in electric arc furnaces
DE102009047320B3 (en) * 2009-11-30 2011-07-21 Sgl Carbon Se, 65203 Radial graded electrode for supplying current during electro-metallurgical process for steel production, has interface layer containing coefficient of thermal expansion lesser than that of sheath component
IT1396948B1 (en) 2009-12-16 2012-12-20 Italghisa S P A ELECTRODIC PASTE FOR GRAPHITE ELECTRODES WITHOUT "BINDER" WITH HYDROCARBURIC BASIS
DE102010003064A1 (en) * 2010-03-19 2011-09-22 Wacker Chemie Ag graphite electrode

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH97969A (en) * 1921-06-10 1923-02-16 Deprez Th Process for making electrodes.
GB241461A (en) * 1925-04-15 1925-10-22 Carl Wilhelm Becker Improvements in or relating to furnace electrodes
US2300503A (en) * 1939-10-17 1942-11-03 Nat Carbon Co Inc Composite article
GB773579A (en) * 1952-08-13 1957-05-01 Lorraine Carbone Improvements in or relating to anodes for powerful electric arcs
DE1137150B (en) * 1960-09-16 1962-09-27 Siemens Planiawerke Ag Molded bodies made of carbon or graphite as electrodes or connecting nipples
FR2019521A6 (en) * 1968-10-01 1970-07-03 Foseco Trading Ag
DE3145993A1 (en) * 1981-11-20 1983-06-01 Sigri Elektrographit Gmbh, 8901 Meitingen Graphite electrode for arc furnaces

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH97969A (en) * 1921-06-10 1923-02-16 Deprez Th Process for making electrodes.
GB241461A (en) * 1925-04-15 1925-10-22 Carl Wilhelm Becker Improvements in or relating to furnace electrodes
US2300503A (en) * 1939-10-17 1942-11-03 Nat Carbon Co Inc Composite article
GB773579A (en) * 1952-08-13 1957-05-01 Lorraine Carbone Improvements in or relating to anodes for powerful electric arcs
DE1137150B (en) * 1960-09-16 1962-09-27 Siemens Planiawerke Ag Molded bodies made of carbon or graphite as electrodes or connecting nipples
FR2019521A6 (en) * 1968-10-01 1970-07-03 Foseco Trading Ag
DE3145993A1 (en) * 1981-11-20 1983-06-01 Sigri Elektrographit Gmbh, 8901 Meitingen Graphite electrode for arc furnaces

Also Published As

Publication number Publication date
IT8349329A0 (en) 1983-11-11
EP0142476A2 (en) 1985-05-22
IT1171887B (en) 1987-06-10
NO844492L (en) 1985-05-13

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

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PUAL Search report despatched

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Effective date: 19851121

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19870501

RIN1 Information on inventor provided before grant (corrected)

Inventor name: D'AMBOSIO, PAOLO

Inventor name: CAVIGLI, MARIO

Inventor name: LETIZIA, ITALO