GB1149047A - An improved method of forming carbon articles - Google Patents

An improved method of forming carbon articles

Info

Publication number
GB1149047A
GB1149047A GB4689666A GB4689666A GB1149047A GB 1149047 A GB1149047 A GB 1149047A GB 4689666 A GB4689666 A GB 4689666A GB 4689666 A GB4689666 A GB 4689666A GB 1149047 A GB1149047 A GB 1149047A
Authority
GB
United Kingdom
Prior art keywords
temperature
pressure
resinous binder
hydrocarbon vapour
graphite
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
GB4689666A
Inventor
Frederick John Rolinson
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.)
Fordath Ltd
Original Assignee
Fordath Ltd
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 Fordath Ltd filed Critical Fordath Ltd
Priority to GB4689666A priority Critical patent/GB1149047A/en
Publication of GB1149047A publication Critical patent/GB1149047A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C04B35/528—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 obtained from carbonaceous particles with or without other non-organic components
    • C04B35/532—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 obtained from carbonaceous particles with or without other non-organic components containing a carbonisable binder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
    • B23H1/04—Electrodes specially adapted therefor or their manufacture
    • B23H1/06—Electrode material

Landscapes

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

Abstract

1,149,047. Graphite articles. FORDATH Ltd. 19 Jan., 1968 [20 Oct., 1966], No. 46896/66. Heading C1A. [Also in Division H5] Graphite articles are made by carbonizing in a non-oxidizing atmosphere containing a hydrocarbon vapour, a mixture of graphite and a resinous binder which has been moulded to the required shape and cured. Carbon is deposited on the article by cracking the hydrocarbon vapour, and the object is degassed by heating at a low pressure. The resinous binder is preferably a phenolic novolak and is used in such proportions that it forms about 10% by weight of'the mixture. A curing agent may be added to the resinous binder, and the mould may conveniently be cured by heating at a temperature of 120‹ to 180‹ C., and a pressure of 1500 p.s.i. The carbonization is preferably carried out in nitrogen at atmospheric pressure and at a temperature between 800‹ and 900‹ C. The hydrocarbon vapour used is preferably benzene. The degassing may conveniently be carried out at a pressure of 5 mm. Hg. and a temperature of 1000‹ to 1400‹C. The example describes' the manufacture of an electrode for use with a spark erosion machine.
GB4689666A 1966-10-20 1966-10-20 An improved method of forming carbon articles Expired GB1149047A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4689666A GB1149047A (en) 1966-10-20 1966-10-20 An improved method of forming carbon articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4689666A GB1149047A (en) 1966-10-20 1966-10-20 An improved method of forming carbon articles

Publications (1)

Publication Number Publication Date
GB1149047A true GB1149047A (en) 1969-04-16

Family

ID=10442980

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4689666A Expired GB1149047A (en) 1966-10-20 1966-10-20 An improved method of forming carbon articles

Country Status (1)

Country Link
GB (1) GB1149047A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2487716A1 (en) * 1980-07-29 1982-02-05 Inoue Japax Res CARBON-BASED ELECTRODE-TOOL FOR ELECTRIC DISCHARGE MACHINING AND METHOD OF MACHINING AN ELECTRO-CONDUCTIVE PIECE USING SUCH AN ELECTRODE
FR2527119A1 (en) * 1982-05-24 1983-11-25 Exnii Metallorezh Stankov CARBON-CARBON MATERIAL FOR THE MANUFACTURE OF ELECTRODE TOOLS EMPLOYED IN ELECTROEROSION MACHINING, AND PROCESS FOR THE PRODUCTION OF SAID MATERIAL
WO2002078890A1 (en) * 2001-03-31 2002-10-10 Honeywell International Inc. Electrical discharge machining of carbon-containing work pieces

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2487716A1 (en) * 1980-07-29 1982-02-05 Inoue Japax Res CARBON-BASED ELECTRODE-TOOL FOR ELECTRIC DISCHARGE MACHINING AND METHOD OF MACHINING AN ELECTRO-CONDUCTIVE PIECE USING SUCH AN ELECTRODE
FR2527119A1 (en) * 1982-05-24 1983-11-25 Exnii Metallorezh Stankov CARBON-CARBON MATERIAL FOR THE MANUFACTURE OF ELECTRODE TOOLS EMPLOYED IN ELECTROEROSION MACHINING, AND PROCESS FOR THE PRODUCTION OF SAID MATERIAL
WO2002078890A1 (en) * 2001-03-31 2002-10-10 Honeywell International Inc. Electrical discharge machining of carbon-containing work pieces
US6800828B2 (en) 2001-03-31 2004-10-05 Honeywell International Inc. Electrical discharge machining of carbon-containing work pieces

Similar Documents

Publication Publication Date Title
GB1157874A (en) Reinforced Carbon and Graphite Bodies
GB1220482A (en) Shaped carbon articles
GB1416841A (en) Method of making a silicon carbide filamentary reinforced silicon composite article
GB1061570A (en) Process for preparing porous shaped structures of carbon or graphite
GB1149047A (en) An improved method of forming carbon articles
GB1473911A (en) Silicon carbide
GB1408801A (en) Vacuum baked composite moulded carbonaceous electrodes
GB901848A (en) Process for manufacturing carbon articles
ES373315A1 (en) Method of eliminating puffing in the manufacture of electrodes from puffing petroleum coke
GB1341696A (en) Manufacture of fibre-reinforced carbon bodies
GB1509497A (en) Method of forming a silicon carbide article
GB1420493A (en) Shaped articles of isotropic carbon
FR2140489A1 (en) Shaped separate bodies - prodn from granular carbon-contg material and phenoplast binders which can be carbonised
GB813800A (en) Primary battery and production thereof
GB578580A (en) Improvements in or relating to vacuum-tight seals for electrical apparatus
GB1202739A (en) Production of useful carbon aggregates
GB1031126A (en) Macroporous vitreus carbon and process for the manufacture thereof
GB1360920A (en) Production of shaped carbon bodies
GB1330519A (en) Articles which include carbon
ES471856A1 (en) Blends of furan-aldehyde resins with phenolic resins and molded articles produced therefrom
GB1312258A (en) Carbonaceous bodies
FR1604987A (en) Graphite body mfr - by impregnating natural graphite moulded body with deposited carbon
GB1298938A (en) Active carbon
GB1258277A (en)
GB759160A (en) Improvements in or relating to production of carbon masses