GB1051449A - - Google Patents

Info

Publication number
GB1051449A
GB1051449A GB4341863A GB4341863A GB1051449A GB 1051449 A GB1051449 A GB 1051449A GB 4341863 A GB4341863 A GB 4341863A GB 4341863 A GB4341863 A GB 4341863A GB 1051449 A GB1051449 A GB 1051449A
Authority
GB
United Kingdom
Prior art keywords
sintered
sintering
cast
molybdenum carbide
paste
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
GB4341863A
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 filed Critical
Publication of GB1051449A publication Critical patent/GB1051449A/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
    • C04B35/622—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
    • C04B35/632—Organic additives
    • 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
    • B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
    • B22F3/225—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip by injection molding
    • 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
    • C04B35/5607—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 refractory metal 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
    • C04B2235/50—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
    • C04B2235/602—Making the green bodies or pre-forms by moulding
    • 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
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C04B2235/6562—Heating rate
    • 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
    • C04B2235/74—Physical characteristics
    • C04B2235/77—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
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/94—Products characterised by their shape
    • 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
    • C04B2235/95—Products characterised by their size, e.g. microceramics

Landscapes

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

Abstract

Sintered molybdenum carbide products are formed from a hot paste or slurry containing molybdenum carbide powder, 1-10% by weight of a natural or artificial wax such as beeswax or carnauba wax and 5-20% by volume of a saturated substituted or unsubstituted aliphatic hydrocarbon such as carbon tetrachloride or trichlorethylene, the hot paste being cast at 60 DEG C and then dried and sintered. Up to 70% by weight of crushed sintered molybdenum carbide grains 1-2 mm. in size may be included and the paste may be cast into a heated stationary mould or centrifugally cast. The casting may be drawn prior to sintering or the casting may be directly sintered to the finished form. The sintering is carried out in vacuo or a neutral atmosphere at a rate of temperature increase of 40 DEG C. /hour up to 1350 DEG C. and at 50 DEG -100 DEG C./ hour up to the final temperature of 1600 DEG to 2300 DEG C. The sintering may be effected in a single stage or in two stages. Bars, rods and tubes may be produced.
GB4341863A 1962-11-06 1963-11-04 Expired GB1051449A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR914471A FR1367431A (en) 1962-11-06 1962-11-06 Manufacturing process of semi-finished and finished products from powdered molybdenum carbide and products obtained
FR934250A FR83931E (en) 1962-11-06 1963-05-09 Manufacturing process of semi-finished and finished products from powdered molybdenum carbide and products obtained

Publications (1)

Publication Number Publication Date
GB1051449A true GB1051449A (en) 1966-12-14

Family

ID=26198269

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4341863A Expired GB1051449A (en) 1962-11-06 1963-11-04

Country Status (7)

Country Link
US (1) US3277222A (en)
BE (1) BE639587A (en)
CH (1) CH428540A (en)
DE (1) DE1245827B (en)
FR (2) FR1367431A (en)
GB (1) GB1051449A (en)
NL (1) NL300107A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3533966A (en) * 1966-02-11 1970-10-13 Westinghouse Electric Corp Process for making current limiting devices
US3486552A (en) * 1967-06-16 1969-12-30 Acme Precision Products Inc Nozzle for injection molding
US4197118A (en) * 1972-06-14 1980-04-08 Parmatech Corporation Manufacture of parts from particulate material
US4820115A (en) * 1987-11-12 1989-04-11 Dresser Industries, Inc. Open impeller for centrifugal compressors
US5567662A (en) * 1994-02-15 1996-10-22 The Dow Chemical Company Method of making metallic carbide powders

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE563059A (en) *
US1610061A (en) * 1914-04-16 1926-12-07 Lohmann Hugo Process for producing tungsten and molybdenum carbide in lumps of various sizes
US1266478A (en) * 1917-03-03 1918-05-14 Carborundum Co Method of producing silicon-carbid articles.
US2446872A (en) * 1941-12-04 1948-08-10 Gen Motors Corp Method of molding ceramic articles
US2434271A (en) * 1944-08-30 1948-01-13 Glenn N Howatt Method of injection molding ceramic bodies using thermoplastic binder
US2642230A (en) * 1948-02-25 1953-06-16 Johnson & Company London Ltd A Process for distributing wax in cemented carbide powders
US2799912A (en) * 1950-12-18 1957-07-23 Greger Herbert Hans Processes for forming high temperature ceramic articles
FR1090014A (en) * 1952-08-11 1955-03-25 Int Standard Electric Corp Methods and process for molding materials, especially ceramic parts
US2942991A (en) * 1955-10-28 1960-06-28 Monsanto Chemicals Slip-casting process
DE1043912B (en) * 1956-12-08 1958-11-13 Hoechst Ag Process for reducing the moisture content of slurries containing silicate clay minerals
GB844706A (en) * 1957-08-07 1960-08-17 Standard Telephones Cables Ltd Improvements in or relating to the formation of ceramic shapes
US2936505A (en) * 1958-10-16 1960-05-17 Curtiss Wright Corp Method and apparatus for forming refractory articles

Also Published As

Publication number Publication date
DE1245827B (en) 1967-07-27
NL300107A (en) 1965-09-10
BE639587A (en) 1964-05-06
FR1367431A (en) 1964-07-24
FR83931E (en) 1964-11-06
US3277222A (en) 1966-10-04
CH428540A (en) 1967-01-15

Similar Documents

Publication Publication Date Title
ES412759A1 (en) Method of lining metallurgical furnaces and a lining material
GB1051449A (en)
JPS5232899A (en) Process for production of cubic boron nitride
SE7407291L (en)
GB902381A (en) Improvements in and relating to refractory articles
IL45616A0 (en) Mold and process for casting high temperature alloys
GB982505A (en) Refractory
GB841576A (en) Process for manufacture of sintered bodies
JPS5312703A (en) Production of sintered ore
GB872714A (en) Improvements in sintering process
GB967489A (en) Ceramic articles
ES338606A1 (en) Methods of forming and purifying nickel-titanium containing alloys
ZAVERUKHA Sintering titanium diboride-molybdenum compacts(Production and characteristics of sintered titanium diboride-molybdenum compacts)
GB924966A (en) Improvements in or relating to the manufacture of refractory bodies
GB866534A (en) Process for the manufacture of refractory materials
ES302908A1 (en) Procedure for preparing an uranium alloy. (Machine-translation by Google Translate, not legally binding)
ES324835A1 (en) Manufacturing method to obtain products of material composed of a1-a12o3 for nuclear applications. (Machine-translation by Google Translate, not legally binding)
ES408285A1 (en) Method for metalurgical procedures that include sio as a loading component. (Machine-translation by Google Translate, not legally binding)
JPS5263804A (en) Process of sintered body of complicated shape
Malik Diffusion molding of titanium
Bradwarow et al. New Knowledge Concerning Sintered Iron Casting Molds
GB1048720A (en) Improvements in or relating to shell moulds for castings
GB840857A (en) Method of producing shaped bodies of beryllium
Visconti Shaping by Spark Sintering
TRUNOV Production of silicon carbide parts by hot casting under pressure(Characteristics of silicon carbide samples produced by hot casting under pressure)