GB1419302A - Coating carbon articles - Google Patents

Coating carbon articles

Info

Publication number
GB1419302A
GB1419302A GB445973A GB445973A GB1419302A GB 1419302 A GB1419302 A GB 1419302A GB 445973 A GB445973 A GB 445973A GB 445973 A GB445973 A GB 445973A GB 1419302 A GB1419302 A GB 1419302A
Authority
GB
United Kingdom
Prior art keywords
article
arc
electrode
aluminium
pitch
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
GB445973A
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.)
NIPKTI PO CHERNA METALURGIA
Original Assignee
NIPKTI PO CHERNA METALURGIA
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 NIPKTI PO CHERNA METALURGIA filed Critical NIPKTI PO CHERNA METALURGIA
Priority to GB445973A priority Critical patent/GB1419302A/en
Publication of GB1419302A publication Critical patent/GB1419302A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
    • 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
    • C23C4/18—After-treatment
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C25C7/02—Electrodes; Connections thereof
    • C25C7/025—Electrodes; Connections thereof used in cells for the electrolysis of melts
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Ceramic Engineering (AREA)
  • Electrochemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Coating By Spraying Or Casting (AREA)

Abstract

1419302 Coated carbon electrodes NIPKTI PO CHERNA METALURGIA 29 Jan 1973 4459/73 Heading B2E [Also in Divisions C7 and H5] A protective coating layer on a cylindrical carbon article 11 is made by burning continuously an electric arc between a layer of material on the article and a lateral electrode 2, the arc being stabilised in a magnetic field and having a current of more than 600A, the article and electrode moving helically relative to one another at a pitch of more than 10 mm and producing a helical band on the article having a width 9 of more than 10 mm when measured in a direction parallel to the axis of the article. The magnetic field is generated by a coil 1 concentric with the lateral electrode 2. The coil may be in series with the arc (Fig 1 not shown) or be supplied separately 7, 8. Hollow iron core 5 is water cooled, as is the non magnetic face 6. When the article 11 is an electrode a plurality of protective layers are applied. The layers consist of aluminium, alone or with copper, sprayed on molten followed by the arc treatment or by pastes comprising carbon or aluminium, silicon carbide (or silica), boric acid, and optionally titanium dioxide which are then arc treated. Preferably the arc treatment is carried out at a pitch of 11-12 mm and currents from 1150A to 1900A. Reference has been directed by the comptroller to Specifications 1026055 and 1151071.
GB445973A 1973-01-29 1973-01-29 Coating carbon articles Expired GB1419302A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB445973A GB1419302A (en) 1973-01-29 1973-01-29 Coating carbon articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB445973A GB1419302A (en) 1973-01-29 1973-01-29 Coating carbon articles

Publications (1)

Publication Number Publication Date
GB1419302A true GB1419302A (en) 1975-12-31

Family

ID=9777570

Family Applications (1)

Application Number Title Priority Date Filing Date
GB445973A Expired GB1419302A (en) 1973-01-29 1973-01-29 Coating carbon articles

Country Status (1)

Country Link
GB (1) GB1419302A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2210064A (en) * 1987-09-23 1989-06-01 Castolin Sa Alloy coating post-treatment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2210064A (en) * 1987-09-23 1989-06-01 Castolin Sa Alloy coating post-treatment
GB2210064B (en) * 1987-09-23 1992-05-27 Castolin Sa Post-treatment of metal-base alloy layers applied by thermal spraying

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee