IT954518B - Procedimento per migliorare le proprieta magnetiche di polveri ferromagnetiche - Google Patents

Procedimento per migliorare le proprieta magnetiche di polveri ferromagnetiche

Info

Publication number
IT954518B
IT954518B IT67906/72A IT6790672A IT954518B IT 954518 B IT954518 B IT 954518B IT 67906/72 A IT67906/72 A IT 67906/72A IT 6790672 A IT6790672 A IT 6790672A IT 954518 B IT954518 B IT 954518B
Authority
IT
Italy
Prior art keywords
procedure
improve
magnetic properties
ferromagnetic powders
ferromagnetic
Prior art date
Application number
IT67906/72A
Other languages
English (en)
Original Assignee
Graham Magnetics Inc
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 Graham Magnetics Inc filed Critical Graham Magnetics Inc
Application granted granted Critical
Publication of IT954518B publication Critical patent/IT954518B/it

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
    • B22F1/14—Treatment of metallic powder
    • B22F1/142—Thermal or thermo-mechanical treatment

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
IT67906/72A 1971-03-24 1972-03-22 Procedimento per migliorare le proprieta magnetiche di polveri ferromagnetiche IT954518B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12785171A 1971-03-24 1971-03-24

Publications (1)

Publication Number Publication Date
IT954518B true IT954518B (it) 1973-09-15

Family

ID=22432291

Family Applications (1)

Application Number Title Priority Date Filing Date
IT67906/72A IT954518B (it) 1971-03-24 1972-03-22 Procedimento per migliorare le proprieta magnetiche di polveri ferromagnetiche

Country Status (6)

Country Link
US (1) US3755008A (it)
BE (1) BE781110A (it)
DE (1) DE2214445A1 (it)
FR (1) FR2130610A1 (it)
IT (1) IT954518B (it)
NL (1) NL7203813A (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855016A (en) * 1971-03-24 1974-12-17 Graham Magnetics Inc Acicular cobalt powders having high squarenesss ratios
US4146504A (en) * 1974-09-26 1979-03-27 Graham Magnetics Inc. Porous powders and a method for their preparation
US4031786A (en) * 1975-08-11 1977-06-28 Warwick Electronics Inc. Tone selector circuit with multiplexed tone data transfer
JPS5269807A (en) * 1975-12-08 1977-06-10 Tdk Corp Recovering of powder of ferromagnetic metal or alloy

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1838831A (en) * 1925-08-19 1931-12-29 Ig Farbenindustrie Ag Metallic core for electromagnets
US2503947A (en) * 1947-03-10 1950-04-11 Comm Engineering Pty Ltd Method of molidng magnetic powder
US2974104A (en) * 1955-04-08 1961-03-07 Gen Electric High-energy magnetic material
US2885366A (en) * 1956-06-28 1959-05-05 Du Pont Product comprising a skin of dense, hydrated amorphous silica bound upon a core of another solid material and process of making same
US3188247A (en) * 1962-10-29 1965-06-08 North American Phillips Compan Use of the hexagonal phase of the compound (fe, co)2p in particle size permanent magnets
US3206338A (en) * 1963-05-10 1965-09-14 Du Pont Non-pyrophoric, ferromagnetic acicular particles and their preparation
US3255052A (en) * 1963-12-09 1966-06-07 Magnetics Inc Flake magnetic core and method of making same
US3567525A (en) * 1968-06-25 1971-03-02 Du Pont Heat treated ferromagnetic particles
US3535104A (en) * 1969-05-23 1970-10-20 Du Pont Ferromagnetic particles containing chromium
US3669643A (en) * 1970-05-05 1972-06-13 Bell Telephone Labor Inc Method for the preparation of small cobalt particles
US3663318A (en) * 1970-10-05 1972-05-16 Du Pont Process for making ferromagnetic metal powders
US3672867A (en) * 1970-12-07 1972-06-27 Du Pont Submicron ferromagnetic alloy particles containing cobalt,boron,and zinc

Also Published As

Publication number Publication date
NL7203813A (it) 1972-09-26
US3755008A (en) 1973-08-28
BE781110A (fr) 1972-07-17
DE2214445A1 (de) 1972-09-28
FR2130610A1 (it) 1972-11-03

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