GB941946A - Improvements in and relating to methods of producing porous metallic tubes - Google Patents

Improvements in and relating to methods of producing porous metallic tubes

Info

Publication number
GB941946A
GB941946A GB17608/61A GB1760861A GB941946A GB 941946 A GB941946 A GB 941946A GB 17608/61 A GB17608/61 A GB 17608/61A GB 1760861 A GB1760861 A GB 1760861A GB 941946 A GB941946 A GB 941946A
Authority
GB
United Kingdom
Prior art keywords
powder
porous metallic
relating
tubes
methods
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
GB17608/61A
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.)
POUDRES METALLIQUES ALLIAGES SPECIAUX UGINE CARBONE
Original Assignee
POUDRES METALLIQUES ALLIAGES SPECIAUX UGINE CARBONE
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 POUDRES METALLIQUES ALLIAGES SPECIAUX UGINE CARBONE filed Critical POUDRES METALLIQUES ALLIAGES SPECIAUX UGINE CARBONE
Publication of GB941946A publication Critical patent/GB941946A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B22F3/10—Sintering only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2027—Metallic material
    • B01D39/2031—Metallic material the material being particulate
    • B01D39/2034—Metallic material the material being particulate sintered or bonded by inorganic agents
    • 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
    • B22F3/10—Sintering only
    • B22F3/11—Making porous workpieces or articles
    • 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
    • B22F3/10—Sintering only
    • B22F3/11—Making porous workpieces or articles
    • B22F3/1121—Making porous workpieces or articles by using decomposable, meltable or sublimatable fillers
    • 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
    • B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
    • 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
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Powder Metallurgy (AREA)

Abstract

A porous metallic tube such as nickel is produced by extruding a mixture of the metal powder and a binder such as paraffin present in a volume equal to the pore volume of the compacted powder metal, the extruded tube being packed in an inert powder such as alumina, graphite or magnesium silicate which is lightly compacted prior to sintering so that the powder in the bore of the tube prevents radial shrinkage. The metal powder has a particle size of 1 to 500 micron and in an example carbonyl nickel powder is mixed with 20% of binder and after extrusion the tubes are packed in alumina of 30 micron size. Sintering is effected at 850 DEG C. in hydrogen and the sintered tubes had a porosity of 45%.
GB17608/61A 1960-05-18 1961-05-15 Improvements in and relating to methods of producing porous metallic tubes Expired GB941946A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR827517A FR1266497A (en) 1960-05-18 1960-05-18 Manufacturing process of porous metal tubes

Publications (1)

Publication Number Publication Date
GB941946A true GB941946A (en) 1963-11-20

Family

ID=8731647

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17608/61A Expired GB941946A (en) 1960-05-18 1961-05-15 Improvements in and relating to methods of producing porous metallic tubes

Country Status (5)

Country Link
BE (1) BE603095A (en)
DE (1) DE1433072B2 (en)
FR (1) FR1266497A (en)
GB (1) GB941946A (en)
LU (1) LU40114A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9029456B2 (en) 2009-02-18 2015-05-12 Seco Tools Ab Method for making cemented carbide products
CN113618063A (en) * 2021-08-02 2021-11-09 武汉理工大学 Novel metal-based composite foam material with through holes and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9029456B2 (en) 2009-02-18 2015-05-12 Seco Tools Ab Method for making cemented carbide products
CN113618063A (en) * 2021-08-02 2021-11-09 武汉理工大学 Novel metal-based composite foam material with through holes and preparation method thereof

Also Published As

Publication number Publication date
FR1266497A (en) 1961-07-17
LU40114A1 (en) 1961-07-10
DE1433072B2 (en) 1971-03-18
BE603095A (en) 1961-08-16
DE1433072A1 (en) 1968-12-05

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