BE748617A - Procede pour preparer une poudre metallique magnetiquement stable essentiellement constituee par du fer, destinee a l'enregistrement magnetique - Google Patents

Procede pour preparer une poudre metallique magnetiquement stable essentiellement constituee par du fer, destinee a l'enregistrement magnetique

Info

Publication number
BE748617A
BE748617A BE748617DA BE748617A BE 748617 A BE748617 A BE 748617A BE 748617D A BE748617D A BE 748617DA BE 748617 A BE748617 A BE 748617A
Authority
BE
Belgium
Prior art keywords
iron
preparing
intended
magnetic recording
metal powder
Prior art date
Application number
Other languages
English (en)
French (fr)
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Publication of BE748617A publication Critical patent/BE748617A/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/008—Use of special additives or fluxing agents
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Hard Magnetic Materials (AREA)
  • Magnetic Record Carriers (AREA)
BE748617D 1969-04-08 1970-04-07 Procede pour preparer une poudre metallique magnetiquement stable essentiellement constituee par du fer, destinee a l'enregistrement magnetique BE748617A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6905417.A NL163355C (nl) 1969-04-08 1969-04-08 Werkwijze ter bereiding van een in hoofdzaak uit ijzer bestaand magnetisch stabiel metaalpoeder, voor magnetische registratie.

Publications (1)

Publication Number Publication Date
BE748617A true BE748617A (fr) 1970-10-07

Family

ID=19806638

Family Applications (1)

Application Number Title Priority Date Filing Date
BE748617D BE748617A (fr) 1969-04-08 1970-04-07 Procede pour preparer une poudre metallique magnetiquement stable essentiellement constituee par du fer, destinee a l'enregistrement magnetique

Country Status (10)

Country Link
US (1) US3627509A (xx)
JP (1) JPS497313B1 (xx)
AT (1) AT306764B (xx)
BE (1) BE748617A (xx)
CH (1) CH544389A (xx)
DE (1) DE2014500C3 (xx)
FR (1) FR2043067A5 (xx)
GB (1) GB1260646A (xx)
NL (1) NL163355C (xx)
SE (1) SE349690B (xx)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3902888A (en) * 1971-08-19 1975-09-02 Fuji Photo Film Co Ltd Process for preparing ferromagnetic alloy powder
DE2212933A1 (de) * 1972-03-17 1973-09-20 Philips Nv Verfahren zur herstellung eines im wesentlichen aus eisen bestehenden metallpulvers
NL167729C (nl) * 1973-05-03 1982-01-18 Philips Nv Werkwijze voor het bereiden van een hoofdzakelijk uit ijzer bestaand metaalpoeder.
DE2361539C2 (de) * 1973-12-11 1984-06-20 Philips Patentverwaltung Gmbh, 2000 Hamburg Verfahren zur Herstellung eines ferromagnetischen, überwiegend aus Eisen bestehenden Materials
US4043846A (en) * 1975-03-17 1977-08-23 Hitachi, Ltd. Method of producing ferromagnetic metal powder by gaseous reduction of silicon compound-coated raw material
DE2646348C2 (de) * 1976-10-14 1986-08-28 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung von nadelförmigen, ferromagnetischen, im wesentlichen aus Eisen bestehenden Metallteilchen und deren Verwendung zur Herstellung von magnetischen Aufzeichnungsträgern
US4165232A (en) * 1978-09-15 1979-08-21 Basf Aktiengesellschaft Manufacture of ferromagnetic metal particles essentially consisting of iron
US4305752A (en) * 1979-07-30 1981-12-15 Pfizer Inc. Metallic iron particles for magnetic recording
US4256484A (en) * 1979-07-30 1981-03-17 Pfizer Inc. Metallic iron particles for magnetic recording
DE2935357A1 (de) * 1979-09-01 1981-09-10 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung nadelfoermiger ferromagnetischer eisenteilchen und deren verwendung
DE2935358A1 (de) * 1979-09-01 1981-03-26 Basf Ag, 67063 Ludwigshafen Verfahren zur herstellung nadelfoermiger ferromagnetischer eisenteilchen und deren verwendung
DE3228669A1 (de) * 1982-07-31 1984-02-02 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung nadelfoermiger, im wesentlichen aus eisen bestehender ferromagnetischer metallteilchen
JP4779092B2 (ja) * 2005-07-28 2011-09-21 Ｄｏｗａエレクトロニクス株式会社 低ノイズ媒体に適した磁性粉末

Also Published As

Publication number Publication date
DE2014500B2 (de) 1976-04-15
US3627509A (en) 1971-12-14
GB1260646A (en) 1972-01-19
NL163355B (nl) 1980-03-17
FR2043067A5 (xx) 1971-02-12
SE349690B (xx) 1972-10-02
JPS497313B1 (xx) 1974-02-19
DE2014500C3 (de) 1978-06-08
CH544389A (de) 1973-11-15
DE2014500A1 (de) 1970-12-10
NL163355C (nl) 1980-08-15
AT306764B (de) 1973-04-25
NL6905417A (xx) 1970-10-12

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