GB964388A - Improvements in and relating to the manufacture of carbon brushes - Google Patents

Improvements in and relating to the manufacture of carbon brushes

Info

Publication number
GB964388A
GB964388A GB204662A GB204662A GB964388A GB 964388 A GB964388 A GB 964388A GB 204662 A GB204662 A GB 204662A GB 204662 A GB204662 A GB 204662A GB 964388 A GB964388 A GB 964388A
Authority
GB
United Kingdom
Prior art keywords
graphite
heated
heating
relating
manufacture
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
GB204662A
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.)
Mersen SA
Original Assignee
Carbone Lorraine SA
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 Carbone Lorraine SA filed Critical Carbone Lorraine SA
Publication of GB964388A publication Critical patent/GB964388A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/12—Manufacture of brushes
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/04—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of carbon-silicon compounds, carbon or silicon

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Products (AREA)

Abstract

Carbon that has been graphitized by heating to form a graphite is impregnated with a solution of a metal compound which is decomposed by heat to the oxide of the metal, said metal forming a carbide when heated in the presence of carbon, and subjected to a second heating step at 1400-1800 DEG C. The impregnation may be carried out under vacuum. In Example (1) graphite was impregnated with an aqueous solution containing aluminium acetate and hydrochloric acid, heated to eliminate the hydrochloric acid, and the aluminium acetate decomposed by heating to 600 DEG C. The graphite was then heated at 1600 DEG C. for 3 hours. Calcium acetate may also be used.
GB204662A 1961-01-19 1962-01-19 Improvements in and relating to the manufacture of carbon brushes Expired GB964388A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR850112A FR1286032A (en) 1961-01-19 1961-01-19 New carbonaceous material for the manufacture of brushes for electric machines

Publications (1)

Publication Number Publication Date
GB964388A true GB964388A (en) 1964-07-22

Family

ID=8747027

Family Applications (1)

Application Number Title Priority Date Filing Date
GB204662A Expired GB964388A (en) 1961-01-19 1962-01-19 Improvements in and relating to the manufacture of carbon brushes

Country Status (2)

Country Link
FR (1) FR1286032A (en)
GB (1) GB964388A (en)

Also Published As

Publication number Publication date
FR1286032A (en) 1962-03-02

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