FR2414031A1 - Procede de fabrication d'un corps de diamant polycristallin et corps ainsi obtenu - Google Patents

Procede de fabrication d'un corps de diamant polycristallin et corps ainsi obtenu

Info

Publication number
FR2414031A1
FR2414031A1 FR7829911A FR7829911A FR2414031A1 FR 2414031 A1 FR2414031 A1 FR 2414031A1 FR 7829911 A FR7829911 A FR 7829911A FR 7829911 A FR7829911 A FR 7829911A FR 2414031 A1 FR2414031 A1 FR 2414031A1
Authority
FR
France
Prior art keywords
manufacturing
mass
polycrystalline diamond
pressure transmission
diamond crystals
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
FR7829911A
Other languages
English (en)
Other versions
FR2414031B1 (fr
Inventor
Minyoung Lee
Lawrence Edward Szala
Robert Charles Devries
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of FR2414031A1 publication Critical patent/FR2414031A1/fr
Application granted granted Critical
Publication of FR2414031B1 publication Critical patent/FR2414031B1/fr
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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • C04B35/645—Pressure sintering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/06—Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies
    • B01J3/062—Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies characterised by the composition of the materials to be processed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/14—Both compacting and sintering simultaneously
    • B22F3/15—Hot isostatic pressing
    • 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
    • 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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/6303—Inorganic additives
    • C04B35/6316—Binders based on silicon compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2203/00—Processes utilising sub- or super atmospheric pressure
    • B01J2203/06—High pressure synthesis
    • B01J2203/0605—Composition of the material to be processed
    • B01J2203/062—Diamond
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2203/00—Processes utilising sub- or super atmospheric pressure
    • B01J2203/06—High pressure synthesis
    • B01J2203/065—Composition of the material produced
    • B01J2203/0655—Diamond
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2203/00—Processes utilising sub- or super atmospheric pressure
    • B01J2203/06—High pressure synthesis
    • B01J2203/0675—Structural or physico-chemical features of the materials processed
    • B01J2203/0685—Crystal sintering
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/38—Non-oxide ceramic constituents or additives
    • C04B2235/3817—Carbides
    • C04B2235/3826—Silicon carbides
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
    • C04B2235/422—Carbon
    • C04B2235/427—Diamond
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
    • C04B2235/428—Silicon
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5436—Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/608—Green bodies or pre-forms with well-defined density
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/616—Liquid infiltration of green bodies or pre-forms
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/658—Atmosphere during thermal treatment
    • C04B2235/6587—Influencing the atmosphere by vaporising a solid material, e.g. by using a burying of sacrificial powder
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/72—Products characterised by the absence or the low content of specific components, e.g. alkali metal free alumina ceramics
    • C04B2235/721—Carbon content
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/72—Products characterised by the absence or the low content of specific components, e.g. alkali metal free alumina ceramics
    • C04B2235/728—Silicon content
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/80—Phases present in the sintered or melt-cast ceramic products other than the main phase
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Ceramic Products (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

PROCEDE UTILISANT DES PRESSIONS ET DES TEMPERATURES PEU ELEVEES. IL CONSISTE A FORMER UNE CAVITE 9 DE TAILLE PREDETERMINEE DANS UNE POUDRE DE TRANSMISSION DE LA PRESSION 19, A Y PLACER UNE MASSE DE CRISTAUX DE DIAMANT 13 EN CONTACT AVEC UNE MASSE DE SILICIUM 12, A RECOUVRIR AVEC DE LA POUDRE DE TRANSMISSION DE PRESSION SUPPLEMENTAIRE, A PRESSER A FROID L'ENSEMBLE POUR FORMER UN SYSTEME FACONNE, STABILISE EN DIMENSION ET A PRESSER A CHAUD LE SYSTEME POUR LIQUEFIER ET FAIRE S'INFILTRER LE SILICIUM DANS LES INTERSTICES ENTRE LES CRISTAUX DE DIAMANT. APPLICATION A LA FABRICATION D'OUTILS DE COUPE.
FR7829911A 1977-10-21 1978-10-20 Procede de fabrication d'un corps de diamant polycristallin et corps ainsi obtenu Expired FR2414031B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US84444677A 1977-10-21 1977-10-21

Publications (2)

Publication Number Publication Date
FR2414031A1 true FR2414031A1 (fr) 1979-08-03
FR2414031B1 FR2414031B1 (fr) 1985-11-08

Family

ID=25292734

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7829911A Expired FR2414031B1 (fr) 1977-10-21 1978-10-20 Procede de fabrication d'un corps de diamant polycristallin et corps ainsi obtenu

Country Status (20)

Country Link
JP (1) JPS5485212A (fr)
AT (1) AT371401B (fr)
AU (1) AU526018B2 (fr)
BE (1) BE871433A (fr)
BR (1) BR7806952A (fr)
CA (1) CA1105948A (fr)
CH (1) CH644090A5 (fr)
DE (1) DE2845755A1 (fr)
DK (1) DK154824C (fr)
ES (1) ES474328A1 (fr)
FR (1) FR2414031B1 (fr)
GB (1) GB2006732B (fr)
IE (1) IE47959B1 (fr)
IL (1) IL55718A0 (fr)
IN (1) IN150647B (fr)
IT (1) IT1101661B (fr)
MX (1) MX151724A (fr)
NL (1) NL186380C (fr)
SE (1) SE451378B (fr)
ZA (1) ZA785931B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4220455A (en) * 1978-10-24 1980-09-02 General Electric Company Polycrystalline diamond and/or cubic boron nitride body and process for making said body
AU7919682A (en) * 1981-01-21 1982-07-29 General Electric Company Silicon carbide-diamond/boron nitride composite
DE3511284A1 (de) * 1984-03-30 1985-10-10 De Beers Industrial Diamond Division (Proprietary) Ltd., Johannesburg, Transvaal Schleifwerkzeug mit schleifeinsatz
US4874398A (en) * 1984-08-24 1989-10-17 Ringwood Alfred E Diamond compacts and process for making same
IE57439B1 (en) * 1985-04-09 1992-09-09 De Beers Ind Diamond Wire drawing die
ZA864402B (en) * 1985-06-18 1987-02-25 De Beers Ind Diamond Abrasive tool
JP2672136B2 (ja) * 1987-03-23 1997-11-05 ザ・オーストラリアン・ナショナル・ユニバーシティ ダイヤモンドコンパクト
EP0383861B1 (fr) * 1988-08-17 1993-08-18 The Australian National University Agglomere compact diamante presentant une faible resistivite electrique
CN110125390A (zh) * 2018-02-08 2019-08-16 罗天珍 三维打印金属粉末粘结毛坯的填充压实烧结工艺

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3239321A (en) * 1960-07-22 1966-03-08 Adamant Res Lab Diamond abrasive particles in a metal matrix
US3912500A (en) * 1972-12-27 1975-10-14 Leonid Fedorovich Vereschagin Process for producing diamond-metallic materials

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2391589A (en) * 1943-04-29 1945-12-25 Hatim Attari Abrasive tool
CA1070123A (fr) * 1969-04-17 1980-01-22 Howard T. Hall Meules au diamant
US3913280A (en) * 1971-01-29 1975-10-21 Megadiamond Corp Polycrystalline diamond composites
US4042347A (en) * 1974-04-15 1977-08-16 Norton Company Method of making a resin-metal composite grinding wheel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3239321A (en) * 1960-07-22 1966-03-08 Adamant Res Lab Diamond abrasive particles in a metal matrix
US3912500A (en) * 1972-12-27 1975-10-14 Leonid Fedorovich Vereschagin Process for producing diamond-metallic materials

Also Published As

Publication number Publication date
GB2006732A (en) 1979-05-10
JPS6213305B2 (fr) 1987-03-25
CA1105948A (fr) 1981-07-28
AT371401B (de) 1983-06-27
DE2845755A1 (de) 1979-05-10
SE7810970L (sv) 1979-04-22
AU526018B2 (en) 1982-12-16
NL186380C (nl) 1990-11-16
NL7810522A (nl) 1979-04-24
MX151724A (es) 1985-02-18
IE782086L (en) 1979-04-21
DE2845755C2 (fr) 1989-09-14
BR7806952A (pt) 1979-05-08
AU4117578A (en) 1980-05-08
JPS5485212A (en) 1979-07-06
BE871433A (fr) 1979-04-20
ATA754078A (de) 1982-11-15
CH644090A5 (de) 1984-07-13
NL186380B (nl) 1990-06-18
IT1101661B (it) 1985-10-07
IE47959B1 (en) 1984-08-08
FR2414031B1 (fr) 1985-11-08
IT7828922A0 (it) 1978-10-19
GB2006732B (en) 1982-10-20
IN150647B (fr) 1982-11-20
ZA785931B (en) 1979-09-26
SE451378B (sv) 1987-10-05
DK154824B (da) 1988-12-27
DK154824C (da) 1989-05-29
ES474328A1 (es) 1979-11-01
IL55718A0 (fr) 1978-12-17
DK468778A (da) 1979-04-22

Similar Documents

Publication Publication Date Title
FR2414033A1 (fr) Procede de preparation d'un composite de diamant polycristallin et de carbure ou nitrure de silicium, et composite ainsi obtenu
FR2414032A1 (fr) Procede de fabrication d'un corps de diamant polycristallin et corps ainsi obtenu
DE3069056D1 (en) Polycrystalline diamond body and method of making same
FR2407169A1 (fr) Procede de preparation d'une reserve d'hydrogene et applications de ce procede.
EP0230233A3 (en) Supported polycrystalline compacts
EP0950036A4 (fr) Procede de fabrication d'une piece en ceramique dense
ES485334A1 (es) Procedimiento para producir un cuerpo policristalino moldea-do.
FR2395237A1 (fr) Procede de fabrication d'un agglomerat abrasif a partir d'au moins deux elements d'agglomerat abrasif et agglomerat abrasif ainsi obtenu
MX165367B (es) Metodo para producir un material abrasivo y material ceramico abrasivo asi producido
SA122430637B1 (ar) تصنيع أدوات للحفر بأسفل البئر
FR2440245A1 (fr) Grain rapporte pour surfaces d'usure d'un outil et son procede de fabrication
SE8600965D0 (sv) Sett att tillverka metallprodukter genom hetisostatpressning
GB2006732A (en) Silicon bonded polycrystalline diamond body
JPS6353310U (fr)
RU95103830A (ru) Способ получения конструкционной порошковой стали
GB419126A (en) Improvements in and relating to diamond drills
SU532199A1 (ru) Способ изготовления алмазосодержащих инструментов
SU987910A1 (ru) Способ получения порошков кубического нитрида бора
GB605261A (en) Improvements in the manufacture of powder metal compacts and diamond tools
SU71678A2 (ru) Способ изготовлени алмазно-металлических инструментов
GB1390035A (en) Metal drawing apparatus
SU605719A1 (ru) Способ изготовлени алмазоносного инструмента
GB556716A (en) Improvements in and relating to diamond tools
GB1443158A (en) Silon carbide for cold drawing tools
SU607827A1 (ru) Огнеупорна масса и способ ее приготовлени

Legal Events

Date Code Title Description
ST Notification of lapse