FR2253839B1 - - Google Patents

Info

Publication number
FR2253839B1
FR2253839B1 FR7440963A FR7440963A FR2253839B1 FR 2253839 B1 FR2253839 B1 FR 2253839B1 FR 7440963 A FR7440963 A FR 7440963A FR 7440963 A FR7440963 A FR 7440963A FR 2253839 B1 FR2253839 B1 FR 2253839B1
Authority
FR
France
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
FR7440963A
Other languages
French (fr)
Other versions
FR2253839A1 (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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2253839A1 publication Critical patent/FR2253839A1/fr
Application granted granted Critical
Publication of FR2253839B1 publication Critical patent/FR2253839B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/06—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder
    • H01F1/065—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder obtained by a reduction
    • 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
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/20—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds
    • B22F9/22—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Hard Magnetic Materials (AREA)
FR7440963A 1973-12-11 1974-12-12 Expired FR2253839B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732361539 DE2361539C2 (en) 1973-12-11 1973-12-11 Process for the production of a ferromagnetic material consisting predominantly of iron

Publications (2)

Publication Number Publication Date
FR2253839A1 FR2253839A1 (en) 1975-07-04
FR2253839B1 true FR2253839B1 (en) 1979-08-10

Family

ID=5900424

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7440963A Expired FR2253839B1 (en) 1973-12-11 1974-12-12

Country Status (5)

Country Link
JP (1) JPS5093854A (en)
BE (1) BE823140A (en)
DE (1) DE2361539C2 (en)
FR (1) FR2253839B1 (en)
GB (1) GB1494352A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3021111A1 (en) 1980-06-04 1981-12-17 Basf Ag, 6700 Ludwigshafen METHOD FOR THE PRODUCTION OF NEEDLE-SHAPED, FERROMAGNETIC METAL PARTICLES, ESSENTIALLY made of IRON
GB2274286B (en) * 1993-01-13 1996-11-06 Singapore Asahi Chemical & Solder Ind Pte Ltd Method of and apparatus for preparing an electric circuit board for a flow or wave soldering process

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1104852A (en) * 1964-05-21 1968-03-06 Jiyuichi Nara Powder-drying apparatus and plant including the same
NL160106C (en) * 1968-01-31 1979-09-17 Philips Nv PROCESS FOR PREPARING A MAGNETICALLY STABLE POWDER MAINLY OF IRON, FOR MAGNETIC REGISTRATION.
NL162233C (en) * 1968-03-05 1980-04-15 Philips Nv METHOD FOR PREPARING AN IRON MAGNETIC STABLE POWDER, FOR MAGNETIC REGISTRATION.
NL163355C (en) * 1969-04-08 1980-08-15 Philips Nv METHOD FOR PREPARING AN IRON MAGNETIC STABLE METAL POWDER, FOR MAGNETIC REGISTRATION.
NL6909443A (en) * 1969-06-20 1970-12-22
DE2212934A1 (en) * 1972-03-17 1973-09-20 Philips Nv Iron powder prodn for magnetic recording - by redn of needle-like crystals of iron oxide or its hydrate in presence of
DE2212933A1 (en) * 1972-03-17 1973-09-20 Philips Nv Process for the production of a metal powder consisting essentially of iron

Also Published As

Publication number Publication date
JPS5093854A (en) 1975-07-26
FR2253839A1 (en) 1975-07-04
DE2361539A1 (en) 1975-06-12
DE2361539C2 (en) 1984-06-20
BE823140A (en) 1975-06-09
GB1494352A (en) 1977-12-07

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Legal Events

Date Code Title Description
ST Notification of lapse