FR2243265A1 - Cobalt bonded tungsten carbide prepn. - by specified grinding of W, Co and graphite, cold-pressing and sintering - Google Patents

Cobalt bonded tungsten carbide prepn. - by specified grinding of W, Co and graphite, cold-pressing and sintering

Info

Publication number
FR2243265A1
FR2243265A1 FR7430172A FR7430172A FR2243265A1 FR 2243265 A1 FR2243265 A1 FR 2243265A1 FR 7430172 A FR7430172 A FR 7430172A FR 7430172 A FR7430172 A FR 7430172A FR 2243265 A1 FR2243265 A1 FR 2243265A1
Authority
FR
France
Prior art keywords
graphite
tungsten carbide
sintering
cold
pressing
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.)
Granted
Application number
FR7430172A
Other languages
French (fr)
Other versions
FR2243265B1 (en
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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
Priority claimed from US05/394,618 external-priority patent/US4013460A/en
Application filed by Union Carbide Corp filed Critical Union Carbide Corp
Publication of FR2243265A1 publication Critical patent/FR2243265A1/en
Application granted granted Critical
Publication of FR2243265B1 publication Critical patent/FR2243265B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/05—Mixtures of metal powder with non-metallic powder
    • C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
    • C22C1/053—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor with in situ formation of hard compounds
    • C22C1/055—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor with in situ formation of hard compounds using carbon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/05—Mixtures of metal powder with non-metallic powder
    • C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)

Abstract

Cemented tungsten carbide articles are produced by ball-milling a mixture of finely divided tungsten and graphite together with 3-20 wt % finely divided cobalt, cold pressing the mixture to at least 96% max. density, and sintering at 1350-1550 degrees C until the tungsten and graphite have reacted completely to form tungsten carbide. Used esp. in cutting tool prodn.
FR7430172A 1973-09-06 1974-09-05 Cobalt bonded tungsten carbide prepn. - by specified grinding of W, Co and graphite, cold-pressing and sintering Granted FR2243265A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/394,618 US4013460A (en) 1972-03-21 1973-09-06 Process for preparing cemented tungsten carbide

Publications (2)

Publication Number Publication Date
FR2243265A1 true FR2243265A1 (en) 1975-04-04
FR2243265B1 FR2243265B1 (en) 1978-05-12

Family

ID=23559725

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7430172A Granted FR2243265A1 (en) 1973-09-06 1974-09-05 Cobalt bonded tungsten carbide prepn. - by specified grinding of W, Co and graphite, cold-pressing and sintering

Country Status (7)

Country Link
JP (1) JPS5521092B2 (en)
AU (1) AU7300474A (en)
BR (1) BR7407364D0 (en)
DE (1) DE2442389B2 (en)
FR (1) FR2243265A1 (en)
IL (1) IL45606A (en)
SE (1) SE410323B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1268106A1 (en) * 2000-02-22 2003-01-02 Industrial Research Limited Process for producing titanium carbide, titanium nitride, or tungsten carbide hardened materials

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9402109U1 (en) * 1994-02-09 1994-03-31 Maartens Kleinmetaal B.V., Haarlem Rotary cutting tool

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1756857A (en) * 1927-04-28 1930-04-29 Gen Electric Hard-metal composition and method of making the same
US3740950A (en) * 1971-09-14 1973-06-26 Sundstrand Corp Hydrostatic transmission with acceleration control

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1268106A1 (en) * 2000-02-22 2003-01-02 Industrial Research Limited Process for producing titanium carbide, titanium nitride, or tungsten carbide hardened materials
EP1268106A4 (en) * 2000-02-22 2004-04-21 Ind Res Ltd Process for producing titanium carbide, titanium nitride, or tungsten carbide hardened materials

Also Published As

Publication number Publication date
SE7411236L (en) 1975-03-07
IL45606A0 (en) 1974-11-29
SE410323B (en) 1979-10-08
JPS5521092B2 (en) 1980-06-07
DE2442389A1 (en) 1975-04-24
DE2442389B2 (en) 1976-11-18
IL45606A (en) 1977-10-31
BR7407364D0 (en) 1975-07-08
FR2243265B1 (en) 1978-05-12
AU7300474A (en) 1976-03-11
AU480131B2 (en) 1977-01-18
JPS5051510A (en) 1975-05-08

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Legal Events

Date Code Title Description
ST Notification of lapse