NL6909443A - - Google Patents

Info

Publication number
NL6909443A
NL6909443A NL6909443A NL6909443A NL6909443A NL 6909443 A NL6909443 A NL 6909443A NL 6909443 A NL6909443 A NL 6909443A NL 6909443 A NL6909443 A NL 6909443A NL 6909443 A NL6909443 A NL 6909443A
Authority
NL
Netherlands
Application number
NL6909443A
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
Priority to NL6909443A priority Critical patent/NL6909443A/xx
Priority to DE19702028536 priority patent/DE2028536A1/de
Priority to AT544470A priority patent/AT298823B/de
Priority to CH921270A priority patent/CH531904A/de
Priority to GB1265768D priority patent/GB1265768A/en
Priority to BE752202D priority patent/BE752202A/xx
Priority to FR7022689A priority patent/FR2046957B1/fr
Publication of NL6909443A publication Critical patent/NL6909443A/xx

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
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70605—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material metals or alloys
    • G11B5/70615—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material metals or alloys containing Fe metal or alloys
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70626—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances
    • G11B5/70642—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides
    • G11B5/70647—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides with a skin
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70626—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances
    • G11B5/70642—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides
    • G11B5/70652—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides gamma - Fe2 O3

Landscapes

  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Health & Medical Sciences (AREA)
  • Dermatology (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Hard Magnetic Materials (AREA)
  • Magnetic Record Carriers (AREA)
  • Paints Or Removers (AREA)
NL6909443A 1969-06-20 1969-06-20 NL6909443A (enrdf_load_stackoverflow)

Priority Applications (7)

Application Number Priority Date Filing Date Title
NL6909443A NL6909443A (enrdf_load_stackoverflow) 1969-06-20 1969-06-20
DE19702028536 DE2028536A1 (de) 1969-06-20 1970-06-10 Durch Reduktion in einer Wirbelschicht hergestelltes Eisenpulver
AT544470A AT298823B (de) 1969-06-20 1970-06-17 Verfahren zur Herstellung eines Materials für magnetische Aufzeichnung
CH921270A CH531904A (de) 1969-06-20 1970-06-17 Verfahren zur Herstellung eines Materials für magnetische Aufzeichnung
GB1265768D GB1265768A (enrdf_load_stackoverflow) 1969-06-20 1970-06-17
BE752202D BE752202A (fr) 1969-06-20 1970-06-18 Poudre de fer preparee par reduction dans une couche fluidifiee
FR7022689A FR2046957B1 (enrdf_load_stackoverflow) 1969-06-20 1970-06-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6909443A NL6909443A (enrdf_load_stackoverflow) 1969-06-20 1969-06-20

Publications (1)

Publication Number Publication Date
NL6909443A true NL6909443A (enrdf_load_stackoverflow) 1970-12-22

Family

ID=19807253

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6909443A NL6909443A (enrdf_load_stackoverflow) 1969-06-20 1969-06-20

Country Status (7)

Country Link
AT (1) AT298823B (enrdf_load_stackoverflow)
BE (1) BE752202A (enrdf_load_stackoverflow)
CH (1) CH531904A (enrdf_load_stackoverflow)
DE (1) DE2028536A1 (enrdf_load_stackoverflow)
FR (1) FR2046957B1 (enrdf_load_stackoverflow)
GB (1) GB1265768A (enrdf_load_stackoverflow)
NL (1) NL6909443A (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2361539C2 (de) * 1973-12-11 1984-06-20 Philips Patentverwaltung Gmbh, 2000 Hamburg Verfahren zur Herstellung eines ferromagnetischen, überwiegend aus Eisen bestehenden Materials
IT1026663B (it) * 1974-11-29 1978-10-20 Montedison Spa Procedimento per preparare polve ri metalliche a base di ferro per registrzione hagnetica
DE3021111A1 (de) * 1980-06-04 1981-12-17 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von nadelfoermigen, im wesentlichen aus eisen bestehenden, ferromagnetischen metallteilchen
DE3116489A1 (de) * 1981-04-25 1982-11-11 Basf Ag, 6700 Ludwigshafen Verfahren zur stabilisierung pyrophorer, im wesentlichen aus eisen bestehender ferromagnetischer nadelfoermiger metallteilchen
DE4115426A1 (de) * 1991-05-10 1992-11-12 Basf Magnetics Gmbh Verfahren zum stabilisieren von nadelfoermigen, im wesentlichen aus eisen bestehenden, ferromagnetischen metallpulvern
WO1993009900A1 (en) * 1991-11-22 1993-05-27 Ampex Media Corporation Storage of metal particles

Also Published As

Publication number Publication date
GB1265768A (enrdf_load_stackoverflow) 1972-03-08
FR2046957B1 (enrdf_load_stackoverflow) 1973-01-12
BE752202A (fr) 1970-12-18
DE2028536A1 (de) 1970-12-23
FR2046957A1 (enrdf_load_stackoverflow) 1971-03-12
CH531904A (de) 1972-12-31
AT298823B (de) 1972-05-25

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