GB1404637A - Electrodes having sprayed protective coatings - Google Patents

Electrodes having sprayed protective coatings

Info

Publication number
GB1404637A
GB1404637A GB5299972A GB5299972A GB1404637A GB 1404637 A GB1404637 A GB 1404637A GB 5299972 A GB5299972 A GB 5299972A GB 5299972 A GB5299972 A GB 5299972A GB 1404637 A GB1404637 A GB 1404637A
Authority
GB
United Kingdom
Prior art keywords
aluminium
coating
electrode
oxide
electrodes
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.)
Expired
Application number
GB5299972A
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.)
Alcan Holdings Switzerland AG
Original Assignee
Alusuisse Holdings AG
Schweizerische Aluminium AG
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 Alusuisse Holdings AG, Schweizerische Aluminium AG filed Critical Alusuisse Holdings AG
Publication of GB1404637A publication Critical patent/GB1404637A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/06—Metallic material
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/06—Metallic material
    • C23C4/08—Metallic material containing only metal elements
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
    • C23C4/11—Oxides
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
    • C25C3/12—Anodes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • Electrolytic Production Of Metals (AREA)

Abstract

1404637 Coated carbon electrodes SWISS ALUMINIUM Ltd 16 Nov 1972 [16 Nov 1971] 52999/72 Headings C7B and C7F A carbon electrode, for use,particularly in the electrolytic production of aluminium, has surface parts which are not used for passage of current coated by spraying a material containing aluminium oxide, the coating material being applied as particles in a molten or plastic condition which solidify or harden on impingement on the electrode. The coating may have a thickness of 0.1-1.0 mm. A layer of aluminium metal 0.05- 1.0 mm thick may be applied under and/or over the coating, or a multiple coating of four layers, alternately aluminium and aluminium oxide may be used. Alternatively a single cement layer of the oxide and metal in a weight ratio of 10:1 to 2:1 may be applied. The coating prevents oxidation of those surfaces of the electrode in contact with the atmosphere.
GB5299972A 1971-11-16 1972-11-16 Electrodes having sprayed protective coatings Expired GB1404637A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1668371A CH579155A5 (en) 1971-11-16 1971-11-16

Publications (1)

Publication Number Publication Date
GB1404637A true GB1404637A (en) 1975-09-03

Family

ID=4419350

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5299972A Expired GB1404637A (en) 1971-11-16 1972-11-16 Electrodes having sprayed protective coatings

Country Status (12)

Country Link
US (1) US3829374A (en)
JP (1) JPS4867109A (en)
AT (1) AT328200B (en)
AU (1) AU474828B2 (en)
CA (1) CA980722A (en)
CH (1) CH579155A5 (en)
DE (1) DE2255776A1 (en)
FR (1) FR2160562B1 (en)
GB (1) GB1404637A (en)
IT (1) IT970938B (en)
NO (1) NO134706B (en)
ZA (1) ZA728143B (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH575014A5 (en) * 1973-05-25 1976-04-30 Alusuisse
CH594064A5 (en) * 1973-12-20 1977-12-30 Alusuisse
US4170533A (en) * 1975-05-30 1979-10-09 Swiss Aluminium Ltd. Refractory article for electrolysis with a protective coating made of corundum crystals
US4206263A (en) * 1977-07-22 1980-06-03 Swiss Aluminium Ltd. Oxygen-resistant electroconductive carbon bodies
CH633868A5 (en) * 1977-09-07 1982-12-31 Alusuisse WEAR-RESISTANT COATING OF THE WORK SURFACE OF DISC-SHAPED MACHINE PARTS MADE OF ALUMINUM OR ALUMINUM ALLOYS.
AU554703B2 (en) * 1981-07-01 1986-08-28 Moltech Invent S.A. Electrolytic production of aluminum
US4560448A (en) * 1982-05-10 1985-12-24 Eltech Systems Corporation Aluminum wettable materials for aluminum production
FR2527229A1 (en) * 1982-05-18 1983-11-25 Aluminium Grece METHOD FOR CALORIFUTING PRECISE ANODES IN ELECTROLYSIS CUPES FOR ALUMINUM PRODUCTION
US4544472A (en) * 1983-04-14 1985-10-01 Nalco Chemical Company Electrode coating and coated electrodes
US4541912A (en) * 1983-12-12 1985-09-17 Great Lakes Carbon Corporation Cermet electrode assembly
US4921584A (en) * 1987-11-03 1990-05-01 Battelle Memorial Institute Anode film formation and control
DE3838828A1 (en) * 1988-11-17 1990-05-23 Vaw Ver Aluminium Werke Ag Carbon electrode with a gas-tight, thermally-stable protective bell
JPH02188476A (en) * 1989-01-13 1990-07-24 Tech Res Assoc Highly Reliab Marine Propul Plant Bonded body of zirconia-based ceramic and metal
US6818106B2 (en) * 2002-01-25 2004-11-16 Alcoa Inc. Inert anode assembly
EP2688130B1 (en) * 2002-11-25 2017-07-26 Alcoa Inc. Inert anode assembly
DE10345827A1 (en) * 2003-10-02 2005-05-04 Daimler Chrysler Ag Process for coating metallic substrates with oxidizing materials by means of arc wire spraying
FR2900938B1 (en) * 2006-05-15 2008-06-20 Ecl Soc Par Actions Simplifiee METHOD FOR MANUFACTURING ANODES FOR THE PRODUCTION OF ALUMINUM BY IGNEE ELECTROLYSIS, THE SAID ANODES AND THEIR USE
CN103088367A (en) * 2011-10-31 2013-05-08 贵阳铝镁设计研究院有限公司 Continuous prebaked anode combination structure of aluminum electrolysis tank
GB2568246A (en) * 2017-11-08 2019-05-15 Dubai Aluminium Pjsc Process for protecting carbon anodes for use in the Hall-Heroult process

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1434158A (en) * 1964-11-25 1966-04-08 Sfec Improvements to refractory protective coatings, and method of manufacturing these elements
US3442786A (en) * 1965-03-22 1969-05-06 Kaiser Aluminium Chem Corp Carbon anode for aluminum reduction cell

Also Published As

Publication number Publication date
IT970938B (en) 1974-04-20
DE2255776A1 (en) 1973-05-24
ZA728143B (en) 1973-09-26
AU4888372A (en) 1974-05-16
FR2160562B1 (en) 1976-10-29
AU474828B2 (en) 1976-08-05
CA980722A (en) 1975-12-30
JPS4867109A (en) 1973-09-13
AT328200B (en) 1976-03-10
FR2160562A1 (en) 1973-06-29
NO134706B (en) 1976-08-23
CH579155A5 (en) 1976-08-31
US3829374A (en) 1974-08-13

Similar Documents

Publication Publication Date Title
GB1404637A (en) Electrodes having sprayed protective coatings
GB1292670A (en) Anode
ES478297A1 (en) Improvements in or relating to bonding plastics materials to steel
GB1361942A (en) Corrosion-resistant double-coated steel material
GB1436661A (en) Mechanical components of ferrous alloys and process for coating them with a layer which resists wear seizing corrosion and which improves their resistance to impacts and their adsorption of films of oil
ES479032A1 (en) Electrodes for electrolytic processes.
GB1298683A (en) Formation of chromium containing coatings on steel strip
ES8107287A1 (en) Coating compositions for inhibiting corrosion of metal surfaces
GB1195904A (en) Process for the production of Coloured Coatings
GB896335A (en) Spark machining electrodes
IS1141B6 (en) Metallic anode coated with an improved protective material
GB1184561A (en) Improvements in or relating to Abrasion Resistant Surfaces.
GB1346334A (en) Sintered coatings on metal sheets
JPS57120667A (en) Lamination coating material
GB1440148A (en) Coating of surfaces
GB1442109A (en) Thin layers of high melting point materials
GB1247734A (en) Abrasion-resistant self-lubricating coating and method
GB1127880A (en) Coating of steel
JPS5388082A (en) Fluororesin-coated article
JPS5764597A (en) Manufacture of metal sheet for plate material
GB1525795A (en) Coated glass
JPS5747860A (en) Anticorrosive coat for molten aluminum
FR2277909A1 (en) Duplex org.-inorg. coating in conducting materials - surface being covered with inorg. coating over which coating is applied by electrophoresis
GB1403451A (en) Nozzle for spraying liquids in particular corrosive media
Yamazaki Forming Abrasion and Corrosion Resistant Coating on Metal

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee