JPS53123898A - Method of making needleeshaped ferromagnetic iron particles - Google Patents

Method of making needleeshaped ferromagnetic iron particles

Info

Publication number
JPS53123898A
JPS53123898A JP3692978A JP3692978A JPS53123898A JP S53123898 A JPS53123898 A JP S53123898A JP 3692978 A JP3692978 A JP 3692978A JP 3692978 A JP3692978 A JP 3692978A JP S53123898 A JPS53123898 A JP S53123898A
Authority
JP
Japan
Prior art keywords
needleeshaped
making
iron particles
ferromagnetic iron
ferromagnetic
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.)
Granted
Application number
JP3692978A
Other languages
English (en)
Other versions
JPS6217362B2 (ja
Inventor
Shiyutetsuku Ueruneru
Burotsuto Rudorufu
Zarunetsukii Uiruherumu
Yakushiyu Herumuuto
Ooringeru Manfureeto
Kesuteru Eeberuharuto
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Publication of JPS53123898A publication Critical patent/JPS53123898A/ja
Publication of JPS6217362B2 publication Critical patent/JPS6217362B2/ja
Granted 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B15/00—Other processes for the manufacture of iron from iron compounds
    • 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
    • G11B5/714—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 dimension of the magnetic particles

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Compounds Of Iron (AREA)
  • Paints Or Removers (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Magnetic Record Carriers (AREA)
JP3692978A 1977-04-01 1978-03-31 Method of making needleeshaped ferromagnetic iron particles Granted JPS53123898A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2714588A DE2714588C2 (de) 1977-04-01 1977-04-01 Verfahren zur Herstellung nadelförmiger ferromagnetischer Eisenteilchen

Publications (2)

Publication Number Publication Date
JPS53123898A true JPS53123898A (en) 1978-10-28
JPS6217362B2 JPS6217362B2 (ja) 1987-04-17

Family

ID=6005364

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3692978A Granted JPS53123898A (en) 1977-04-01 1978-03-31 Method of making needleeshaped ferromagnetic iron particles

Country Status (6)

Country Link
US (1) US4178171A (ja)
JP (1) JPS53123898A (ja)
DE (1) DE2714588C2 (ja)
FR (1) FR2385476A1 (ja)
GB (2) GB1597680A (ja)
NL (1) NL7803460A (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5944809A (ja) * 1982-07-31 1984-03-13 バスフ　アクチエンゲゼルシヤフト 実質的に鉄より成る針状フエロ磁性金属粒子の製造法
JPS6161404A (ja) * 1984-08-31 1986-03-29 Sony Corp 金属磁性粉末の製造方法
JPS6367704A (ja) * 1986-09-09 1988-03-26 Nissan Chem Ind Ltd 高分散性磁性鉄粉の製造方法

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2815712A1 (de) * 1978-04-12 1979-10-25 Bayer Ag Eisenoxide zur magnetischen signalaufzeichnung und verfahren zu deren herstellung
DE2907255A1 (de) * 1979-02-24 1980-09-04 Basf Ag Verfahren zur herstellung nadelfoermiger ferromagnetischer eisenteilchen
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
JPS5677931A (en) * 1979-11-28 1981-06-26 Tdk Corp Magnetic recording medium and its producton
DE3021111A1 (de) 1980-06-04 1981-12-17 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von nadelfoermigen, im wesentlichen aus eisen bestehenden, ferromagnetischen metallteilchen
DE3176436D1 (en) * 1980-06-11 1987-10-15 Hitachi Maxell Process for preparing ferromagnetic particles comprising metallic iron
DE3026696A1 (de) 1980-07-15 1982-02-18 Basf Ag, 6700 Ludwigshafen Ferromagnetische, im wesentlichen aus eisen bestehende metallteilchen mit einem oberflaechenueberzug, verfahren zu deren herstellung sowie ihre verwendung zur herstellung von magnetischen aufzeichnungstraegern
JPS59157204A (ja) * 1983-02-23 1984-09-06 Chisso Corp 強磁性金属微粒子の製造方法
US10336648B1 (en) * 1986-03-21 2019-07-02 Alvin R. Stetson Slip composition
US4957644A (en) * 1986-05-13 1990-09-18 Price John T Magnetically controllable couplings containing ferrofluids
US4849120A (en) * 1986-05-13 1989-07-18 Price John T Magnetically controllable couplings containing ferrafluids
US5219554A (en) * 1986-07-03 1993-06-15 Advanced Magnetics, Inc. Hydrated biodegradable superparamagnetic metal oxides
US5069216A (en) * 1986-07-03 1991-12-03 Advanced Magnetics Inc. Silanized biodegradable super paramagnetic metal oxides as contrast agents for imaging the gastrointestinal tract
JPH06345437A (ja) * 1993-06-04 1994-12-20 Natl Sci Council γ−酸化鉄磁気粉末の製造方法
US8857603B1 (en) * 2013-06-20 2014-10-14 Alan Nippert System for adjusting conveyor direction

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5024799A (ja) * 1973-07-04 1975-03-17
JPS5125454A (en) * 1974-07-16 1976-03-02 Basf Ag Shinjono tetsuganjukyojiseikinzokupigumentono seiho
JPS5125455A (en) * 1974-07-16 1976-03-02 Basf Ag Shinjono tetsuganjukyojiseikinzokupigumentono seiho

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1219009B (de) * 1963-06-26 1966-06-16 Bayer Ag Verfahren zur Herstellung von gamma-FeOOH
NL162233C (nl) * 1968-03-05 1980-04-15 Philips Nv Werkwijze ter bereiding van een in hoofdzaak uit ijzer bestaand magnetisch stabiel poeder, voor magnetische registratie.
US3904540A (en) * 1972-02-11 1975-09-09 Pfizer Magnetic impulse record member
DE2249274A1 (de) * 1972-10-07 1974-04-18 Bayer Ag Herstellung von gefaelltem rotem eisen(iii)-oxid
US4066726A (en) * 1972-11-18 1978-01-03 Gottfried Mehnert Multi-stage method of blow molding hollow shaped articles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5024799A (ja) * 1973-07-04 1975-03-17
JPS5125454A (en) * 1974-07-16 1976-03-02 Basf Ag Shinjono tetsuganjukyojiseikinzokupigumentono seiho
JPS5125455A (en) * 1974-07-16 1976-03-02 Basf Ag Shinjono tetsuganjukyojiseikinzokupigumentono seiho

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5944809A (ja) * 1982-07-31 1984-03-13 バスフ　アクチエンゲゼルシヤフト 実質的に鉄より成る針状フエロ磁性金属粒子の製造法
JPH0475641B2 (ja) * 1982-07-31 1992-12-01 Basf Ag
JPS6161404A (ja) * 1984-08-31 1986-03-29 Sony Corp 金属磁性粉末の製造方法
JPS6367704A (ja) * 1986-09-09 1988-03-26 Nissan Chem Ind Ltd 高分散性磁性鉄粉の製造方法

Also Published As

Publication number Publication date
US4178171A (en) 1979-12-11
DE2714588C2 (de) 1986-06-05
NL7803460A (nl) 1978-10-03
FR2385476B1 (ja) 1983-02-04
JPS6217362B2 (ja) 1987-04-17
DE2714588A1 (de) 1978-10-12
GB1597679A (en) 1981-09-09
FR2385476A1 (fr) 1978-10-27
GB1597680A (en) 1981-09-09

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