FR2249854A1 - Wear-resistant moulded jets and cutting-tools - prepd. from boron carbide mixt. with other refractory borides or carbides - Google Patents

Wear-resistant moulded jets and cutting-tools - prepd. from boron carbide mixt. with other refractory borides or carbides

Info

Publication number
FR2249854A1
FR2249854A1 FR7436590A FR7436590A FR2249854A1 FR 2249854 A1 FR2249854 A1 FR 2249854A1 FR 7436590 A FR7436590 A FR 7436590A FR 7436590 A FR7436590 A FR 7436590A FR 2249854 A1 FR2249854 A1 FR 2249854A1
Authority
FR
France
Prior art keywords
carbide
jets
pref
cutting
prepd
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
FR7436590A
Other languages
French (fr)
Other versions
FR2249854B1 (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.)
Borax Europe Ltd
Original Assignee
Borax Consolidated 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
Priority claimed from GB5094573A external-priority patent/GB1479589A/en
Application filed by Borax Consolidated Ltd filed Critical Borax Consolidated Ltd
Publication of FR2249854A1 publication Critical patent/FR2249854A1/en
Application granted granted Critical
Publication of FR2249854B1 publication Critical patent/FR2249854B1/fr
Granted 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
    • C04B35/58—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 borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • C04B35/5805—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 borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides
    • C04B35/58064—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 borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides based on refractory borides
    • C04B35/58071—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 borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides based on refractory borides based on titanium borides
    • 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
    • C04B35/56—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 carbides or oxycarbides
    • C04B35/563—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 carbides or oxycarbides based on boron carbide
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/14—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on borides

Landscapes

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

Abstract

Wear-resistant moulded articles consist of, or have surfaces consisting of, a mixt, of B carbide and >=1 other refractory metal boride or carbide, pref. WC, TiB2 and/or ZrB2. The moulded articles are pref. jets for granulated material and cutting tools. Mixtures have improved working life and workability. B carbide and additives act synergetically. Jets can be prepd. by hot-pressing mixts. contg. 80 wt. % additive, pref. 50:50 TiB2/B carbide. Cutting materials pref. contain 40-60 % B carbide and 60-40 % additive. Hot or cold-pressing processes can be used. Hot-pressed materials pref. contain a binder, esp. Mo Cold-pressed materials may contain up to 10 wt. % standard additive esp. Co or Ni.
FR7436590A 1973-11-02 1974-11-04 Wear-resistant moulded jets and cutting-tools - prepd. from boron carbide mixt. with other refractory borides or carbides Granted FR2249854A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5094573A GB1479589A (en) 1973-11-02 1973-11-02 Articles having abrasion resistance
GB1746874 1974-04-22

Publications (2)

Publication Number Publication Date
FR2249854A1 true FR2249854A1 (en) 1975-05-30
FR2249854B1 FR2249854B1 (en) 1978-06-09

Family

ID=26252697

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7436590A Granted FR2249854A1 (en) 1973-11-02 1974-11-04 Wear-resistant moulded jets and cutting-tools - prepd. from boron carbide mixt. with other refractory borides or carbides

Country Status (3)

Country Link
JP (1) JPS50111111A (en)
DE (1) DE2451774A1 (en)
FR (1) FR2249854A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0204067A1 (en) * 1985-06-01 1986-12-10 Kernforschungszentrum Karlsruhe Gmbh Article with a high hardness and high tenacity for working metals, hard metals, ceramics and glasses
EP0204920A1 (en) * 1985-06-01 1986-12-17 Kernforschungszentrum Karlsruhe Gmbh Article with a high hardness and high tenacity for working metals, hard metals, ceramics and glasses

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60235764A (en) * 1984-05-07 1985-11-22 株式会社シバソン Manufacture of boron carbide-titanium diboride two state composite superhard alloy
DE3435345A1 (en) * 1984-09-26 1986-04-03 Max Planck-Gesellschaft zur Förderung der Wissenschaften e.V., 8000 München METHOD FOR PRODUCING CARBIDE-BORIDE PRODUCTS AND THE USE THEREOF
DE8702601U1 (en) * 1987-02-20 1987-05-21 Carsjens, Ullrich, 41065 Mönchengladbach Device for reducing wear
US4957884A (en) * 1987-04-27 1990-09-18 The Dow Chemical Company Titanium diboride/boron carbide composites with high hardness and toughness
DE4320102A1 (en) * 1993-06-17 1994-12-22 Kempten Elektroschmelz Gmbh Process for the production of polycrystalline dense moldings based on boron carbide by pressure-free sintering

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0204067A1 (en) * 1985-06-01 1986-12-10 Kernforschungszentrum Karlsruhe Gmbh Article with a high hardness and high tenacity for working metals, hard metals, ceramics and glasses
EP0204920A1 (en) * 1985-06-01 1986-12-17 Kernforschungszentrum Karlsruhe Gmbh Article with a high hardness and high tenacity for working metals, hard metals, ceramics and glasses

Also Published As

Publication number Publication date
DE2451774A1 (en) 1975-05-07
FR2249854B1 (en) 1978-06-09
JPS50111111A (en) 1975-09-01

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Legal Events

Date Code Title Description
ST Notification of lapse