EP0092649A3 - Process for depositing powdery material containing graphite and synthetic resin on a carbon electrode with metallic coating, particularly on a graphite electrode - Google Patents

Process for depositing powdery material containing graphite and synthetic resin on a carbon electrode with metallic coating, particularly on a graphite electrode Download PDF

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Publication number
EP0092649A3
EP0092649A3 EP83101342A EP83101342A EP0092649A3 EP 0092649 A3 EP0092649 A3 EP 0092649A3 EP 83101342 A EP83101342 A EP 83101342A EP 83101342 A EP83101342 A EP 83101342A EP 0092649 A3 EP0092649 A3 EP 0092649A3
Authority
EP
European Patent Office
Prior art keywords
graphite
electrode
synthetic resin
electrode surface
metallic coating
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Withdrawn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
EP83101342A
Other languages
German (de)
French (fr)
Other versions
EP0092649A2 (en
Inventor
Franz Schieber
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.)
C Conradty Nuernberg GmbH and Co KG
Original Assignee
C Conradty Nuernberg GmbH and Co KG
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 C Conradty Nuernberg GmbH and Co KG filed Critical C Conradty Nuernberg GmbH and Co KG
Publication of EP0092649A2 publication Critical patent/EP0092649A2/en
Publication of EP0092649A3 publication Critical patent/EP0092649A3/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Withdrawn legal-status Critical Current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
    • 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
    • H05B7/12—Arrangements for cooling, sealing or protecting electrodes

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Discharge Heating (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zur Aufbringung eines Graphit und Kunstharz enthaltenden pulverförmigen Materials auf eine mit einem metallischen Überzug versehe­ ne Kohlenstoff-, insbesondere Graphitelektrode, bei dem die Aufbringung des pulverförmigen Materials zur Einsparung von Energie und Produktionskosten nicht aus einer wässri­ gen Suspension auf eine kalte Elektrodenoberfläche unter Bemischung eines wasserlöslichen Klebers zwecks Haftung des Überzugs auf der Elektrodenoberfläche erfolgt, sondern durch Aufbringen des trockenen Pulvergemisches ohne besonderen Klebstoff auf die wenigstens auf die Schmelz­ temperatur des Kunstharzes erwärmte Elektrodenoberfläche. Aus dieser erwärmten Oberfläche schmilzt das Kunstharz und wirkt dadurch als Klebstoff für das Graphitpulver, härtet aus und bildet somit eine fest haftende, graphithaltige Schutzschicht, die die Verwendung von metallischen Kon­ taktbacken zur Stromübertragung auf die Elektrode im Lichtbogenofen bei der Strahlerzeugung ermöglicht, ohne daß die Kontaktbacken mit der Elektrodenoberfläche ver­ schweißen. The invention relates to a method for application of a powdery form containing graphite and synthetic resin Material on one with a metallic coating ne carbon, especially graphite electrode, in which the Application of the powdered material for saving of energy and production costs not from a water suspension onto a cold electrode surface Mixing a water-soluble adhesive for adhesion of the coating on the electrode surface, but by applying the dry powder mixture without special adhesive on the at least on the enamel temperature of the resin heated electrode surface. The synthetic resin melts from this heated surface and thus acts as an adhesive for the graphite powder, hardens and thus forms a firmly adhering, graphite-containing Protective layer that the use of metallic con Clock jaws for current transfer to the electrode in the Arc furnace allows for beam generation without that the contact jaws ver with the electrode surface welding.

EP83101342A 1982-04-28 1983-02-11 Process for depositing powdery material containing graphite and synthetic resin on a carbon electrode with metallic coating, particularly on a graphite electrode Withdrawn EP0092649A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3215831 1982-04-28
DE19823215831 DE3215831A1 (en) 1982-04-28 1982-04-28 METHOD FOR APPLYING A GRAPHITE AND SYNTHETIC RESIN CONTAINING POWDER-SHAPED MATERIALS ON A CARBON ELECTRODE PROVIDED WITH A METAL COATING, IN PARTICULAR GRAPHITE ELECTRODE

Publications (2)

Publication Number Publication Date
EP0092649A2 EP0092649A2 (en) 1983-11-02
EP0092649A3 true EP0092649A3 (en) 1984-03-07

Family

ID=6162165

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83101342A Withdrawn EP0092649A3 (en) 1982-04-28 1983-02-11 Process for depositing powdery material containing graphite and synthetic resin on a carbon electrode with metallic coating, particularly on a graphite electrode

Country Status (2)

Country Link
EP (1) EP0092649A3 (en)
DE (1) DE3215831A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3418934A1 (en) * 1984-05-22 1985-11-28 Sigri GmbH, 8901 Meitingen GRAPHITE ELECTRODE FOR ARC FURNACES AND METHOD FOR THEIR PRODUCTION
BG41989A1 (en) * 1985-11-27 1987-09-15 Radev Graphite electrode with protective coating and method for its manufacture
EP2190262A1 (en) * 2008-11-25 2010-05-26 SGL Carbon SE Carbon electrode with longer durability
EP2330868A1 (en) * 2009-12-03 2011-06-08 Siemens Aktiengesellschaft Electrode for an arc furnace and method for its manufacture

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1646679A1 (en) * 1965-03-29 1971-11-18 Metalurgitschen Zd Lenin Process for the production of protective coats on carbon objects and equipment for its implementation
DE2305276A1 (en) * 1973-02-02 1974-08-08 Nipkti Po Cherna Metalurgia Protective coating for carbon electrodes in electric furnaces - having high aluminium content and fixed with electric arc stabilized with magnetic field
GB1386611A (en) * 1971-11-26 1975-03-12 Foseco Int Protection of graphite electrodes
GB2024045A (en) * 1978-06-28 1980-01-09 United Technologies Corp Dry floc method for making an electrochemical cell electrode
GB2075060A (en) * 1980-04-23 1981-11-11 Sklyariv A T Electrode for Electrochemical Processes and Process for Producing Same
DE3028348A1 (en) * 1980-07-25 1982-04-01 C. Conradty Nürnberg GmbH & Co KG, 8505 Röthenbach CARBON ELECTRODE, IN PARTICULAR GRAPHITE ELECTRODE FOR STEEL PRODUCTION

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1646679A1 (en) * 1965-03-29 1971-11-18 Metalurgitschen Zd Lenin Process for the production of protective coats on carbon objects and equipment for its implementation
GB1386611A (en) * 1971-11-26 1975-03-12 Foseco Int Protection of graphite electrodes
DE2305276A1 (en) * 1973-02-02 1974-08-08 Nipkti Po Cherna Metalurgia Protective coating for carbon electrodes in electric furnaces - having high aluminium content and fixed with electric arc stabilized with magnetic field
GB2024045A (en) * 1978-06-28 1980-01-09 United Technologies Corp Dry floc method for making an electrochemical cell electrode
GB2075060A (en) * 1980-04-23 1981-11-11 Sklyariv A T Electrode for Electrochemical Processes and Process for Producing Same
DE3028348A1 (en) * 1980-07-25 1982-04-01 C. Conradty Nürnberg GmbH & Co KG, 8505 Röthenbach CARBON ELECTRODE, IN PARTICULAR GRAPHITE ELECTRODE FOR STEEL PRODUCTION

Also Published As

Publication number Publication date
EP0092649A2 (en) 1983-11-02
DE3215831A1 (en) 1983-11-03

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Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

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Effective date: 19840827

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Effective date: 19850903

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Inventor name: SCHIEBER, FRANZ