DE3461871D1 - Fine particles of ferromagnetic metal and process for producing the same - Google Patents

Fine particles of ferromagnetic metal and process for producing the same

Info

Publication number
DE3461871D1
DE3461871D1 DE8484301141T DE3461871T DE3461871D1 DE 3461871 D1 DE3461871 D1 DE 3461871D1 DE 8484301141 T DE8484301141 T DE 8484301141T DE 3461871 T DE3461871 T DE 3461871T DE 3461871 D1 DE3461871 D1 DE 3461871D1
Authority
DE
Germany
Prior art keywords
producing
same
fine particles
ferromagnetic metal
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.)
Expired
Application number
DE8484301141T
Other languages
German (de)
Inventor
Masashi Ushiyama
Takayoshi Yoshizaki
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.)
JNC Corp
Original Assignee
Chisso Corp
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 Chisso Corp filed Critical Chisso Corp
Application granted granted Critical
Publication of DE3461871D1 publication Critical patent/DE3461871D1/en
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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/18—Non-metallic particles coated with metal
    • 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
    • B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
    • B22F9/26—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions 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)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
DE8484301141T 1983-02-22 1984-02-22 Fine particles of ferromagnetic metal and process for producing the same Expired DE3461871D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58028149A JPS59153810A (en) 1983-02-22 1983-02-22 Production of ferromagnetic fine metallic particle

Publications (1)

Publication Number Publication Date
DE3461871D1 true DE3461871D1 (en) 1987-02-05

Family

ID=12240703

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484301141T Expired DE3461871D1 (en) 1983-02-22 1984-02-22 Fine particles of ferromagnetic metal and process for producing the same

Country Status (3)

Country Link
EP (1) EP0118253B1 (en)
JP (1) JPS59153810A (en)
DE (1) DE3461871D1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8601635A (en) * 1986-06-27 1988-01-18 Vmei Lenin Nis HEAT-RESISTANT AMORF PHERROMAGNETIC POWDER AND A METHOD AND APPARATUS FOR PREPARING IT.
US5965194A (en) * 1992-01-10 1999-10-12 Imation Corp. Magnetic recording media prepared from magnetic particles having an extremely thin, continuous, amorphous, aluminum hydrous oxide coating
CN101088672B (en) * 2007-07-18 2010-05-12 重庆扬子粉末冶金有限责任公司 Cu-Sn-Zn-Pb alloy coated composite iron powder and its production process

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2909995C2 (en) * 1978-03-16 1984-06-28 Kanto Denka Kogyo Co., Ltd., Tokyo Method for producing a magnetic powder
DE2909480A1 (en) * 1979-03-10 1980-09-11 Bayer Ag FERROMAGNETIC METAL PIGMENT MADE OF IRON AND METHOD FOR THE PRODUCTION THEREOF
US4251592A (en) * 1979-04-03 1981-02-17 Toda Kogyo Corp. Stabilization treatment of acicular ferromagnetic iron or iron-alloy particles against the oxidation thereof
JPS56109827A (en) * 1980-02-05 1981-08-31 Mitsui Toatsu Chem Inc Manufacture of iron compound particle for magnetic recording medium
DE3026696A1 (en) * 1980-07-15 1982-02-18 Basf Ag, 6700 Ludwigshafen FERROMAGNETIC, PARTICULARLY IRON METAL PARTICLES WITH A SURFACE COVER, METHOD FOR THE PRODUCTION THEREOF AND THEIR USE FOR THE PRODUCTION OF MAGNETIC RECORDING CARRIERS

Also Published As

Publication number Publication date
EP0118253B1 (en) 1986-12-30
EP0118253A1 (en) 1984-09-12
JPS59153810A (en) 1984-09-01
JPH0348243B2 (en) 1991-07-23

Similar Documents

Publication Publication Date Title
DE3474948D1 (en) Process and apparatus for preparing metal oxide particles
HUT35516A (en) Process for producing small particles and capsulating them
EP0124901A3 (en) Process and apparatus for manufacturing fine powder
EP0151490A3 (en) Process for producing ultra-fine ceramic particles
EP0381761A4 (en) Fine flaky graphite particles and process for their production
GB2168967B (en) Process for producing metal oxide particles having a very small and uniform size
GB2182063B (en) Process for producing spheroidal metal particles
HUT35532A (en) Process for production of small particles
EP0131796A3 (en) Magnetic fluid incorporating fine magnetic powder and method and apparatus for making the same
EP0592188A3 (en) Iron oxide particles and process for producing the same
GB2080783B (en) Process for producing ferromagnetic metallic particles
GB2148952B (en) Ultra fine metal particles
EP0135118A3 (en) Method of producing fine particles
HUT34220A (en) Process for the production of 17-/isocyano-sulfonyl-methylene/-steroids and 17-/formamido-sulfonyl-methylene/-steroids
ZA844449B (en) Process and device for the very fine spraying of suspensions
EP0439367A3 (en) Magnetic particles containing iron as the main component and process for producing the same
DE3374480D1 (en) Process for producing acicular ferromagnetic metal particles essentially consisting of iron
EP0148707A3 (en) Process and apparatus for the preparation of sinterable uraniumdioxide
DE3475790D1 (en) Fine particles of polyvinyl chloride and process for producing the same
GB2058845B (en) Method of producing fine metal particles
EP0269361A3 (en) Process for producing acicular iron alpha-oxyhydroxide particles
DE3461871D1 (en) Fine particles of ferromagnetic metal and process for producing the same
DE3463308D1 (en) Process for producing fine particles of ferromagnetic metal powder
DE3160523D1 (en) Process for preparing acicular ferromagnetic particles mainly consisting of iron
EP0312032A3 (en) Iron carbide fine particles and process for preparing the same

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee