DE3102155C2 - - Google Patents

Info

Publication number
DE3102155C2
DE3102155C2 DE3102155A DE3102155A DE3102155C2 DE 3102155 C2 DE3102155 C2 DE 3102155C2 DE 3102155 A DE3102155 A DE 3102155A DE 3102155 A DE3102155 A DE 3102155A DE 3102155 C2 DE3102155 C2 DE 3102155C2
Authority
DE
Germany
Prior art keywords
iron
magnetic material
magnetic
ferromagnetic
particles
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 - Lifetime
Application number
DE3102155A
Other languages
German (de)
English (en)
Other versions
DE3102155A1 (de
Inventor
Takeo Sata
Masayuki Takamura
Tosiharu Hamamatsu Shizuoka Jp Hoshi
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.)
Yamaha Corp
Original Assignee
Yamaha 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 Yamaha Corp filed Critical Yamaha Corp
Publication of DE3102155A1 publication Critical patent/DE3102155A1/de
Application granted granted Critical
Publication of DE3102155C2 publication Critical patent/DE3102155C2/de
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
    • H01F1/08—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 pressed, sintered, or bound together
    • H01F1/086—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 pressed, sintered, or bound together sintered
    • 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
    • B22F1/17—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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
    • B22F2003/206—Hydrostatic or hydraulic extrusion

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Hard Magnetic Materials (AREA)
  • Soft Magnetic Materials (AREA)
DE19813102155 1980-01-24 1981-01-23 Verfahren zur herstellung hartmagnetischen materials Granted DE3102155A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55006369A JPS5832767B2 (ja) 1980-01-24 1980-01-24 硬質磁性材料の製法

Publications (2)

Publication Number Publication Date
DE3102155A1 DE3102155A1 (de) 1981-12-17
DE3102155C2 true DE3102155C2 (enExample) 1992-04-30

Family

ID=11636446

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813102155 Granted DE3102155A1 (de) 1980-01-24 1981-01-23 Verfahren zur herstellung hartmagnetischen materials

Country Status (3)

Country Link
US (1) US4431604A (enExample)
JP (1) JPS5832767B2 (enExample)
DE (1) DE3102155A1 (enExample)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6148503A (ja) * 1984-08-15 1986-03-10 Tdk Corp 金属磁性粉末
US4640816A (en) * 1984-08-31 1987-02-03 California Institute Of Technology Metastable alloy materials produced by solid state reaction of compacted, mechanically deformed mixtures
US4678634A (en) * 1985-04-18 1987-07-07 Shin-Etsu Chemical Co., Ltd. Method for the preparation of an anisotropic sintered permanent magnet
GB8707905D0 (en) * 1987-04-02 1987-05-07 Univ Birmingham Magnets
US4931092A (en) * 1988-12-21 1990-06-05 The Dow Chemical Company Method for producing metal bonded magnets
DE69031250T2 (de) * 1989-06-09 1997-12-04 Matsushita Electric Ind Co Ltd Magnetisches Material
DE69028360T2 (de) * 1989-06-09 1997-01-23 Matsushita Electric Ind Co Ltd Verbundmaterial sowie Verfahren zu seiner Herstellung
US5381125A (en) * 1993-07-20 1995-01-10 At&T Corp. Spinodally decomposed magnetoresistive devices
US20050001499A1 (en) * 2003-07-01 2005-01-06 Litton Systems, Inc. Permanent magnet rotor for brushless D.C. motor
CN101178962B (zh) * 2007-09-18 2010-05-26 横店集团东磁股份有限公司 一种稀土-铁-硼烧结磁性材料的无压制备方法

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA566352A (en) * 1958-11-18 The Polymer Corporation Method for making powdered iron magnetic structures and the resulting structures
US1986197A (en) * 1932-03-10 1935-01-01 Harshaw Chem Corp Metallic composition
US2724174A (en) * 1950-07-19 1955-11-22 Gen Electric Molded magnet and magnetic material
GB779696A (en) * 1955-02-16 1957-07-24 Opel Adam Ag Improved vehicle suspension
GB779969A (en) * 1955-03-04 1957-07-24 American Chem Paint Co Improvements in or relating to powder metallurgy
GB811935A (en) * 1955-06-01 1959-04-15 Gen Electric Co Ltd Improvements in or relating to the manufacture of magnetizable powder cores
US2967794A (en) * 1956-09-12 1961-01-10 Handy & Harman Fine particle magnets
DE1079087B (de) * 1956-09-12 1960-04-07 Degussa Verfahren zur Herstellung eines Magnetwerkstoffes
DE1169142B (de) * 1962-08-07 1964-04-30 Deutsche Edelstahlwerke Ag Verfahren zum Herstellung von oberflaechlich oxydierten magnetischen Einbereichsteilchen
US3149408A (en) * 1962-08-09 1964-09-22 Gen Electric Process for the preparation of permanent magnetic structures
DE1284532B (de) * 1963-11-22 1968-12-05 Deutsche Edelstahlwerke Ag Magnetische laengliche Einbereichsteilchen fuer Dauermagnete und Verfahren zu ihrer Herstellung
DE1244417B (de) * 1964-11-05 1967-07-13 Magnetfab Bonn Gmbh Metallischer Dauermagnetwerkstoff
US3555265A (en) * 1967-12-18 1971-01-12 Gen Electric Fine particle magnetic material
NL154354B (nl) * 1967-12-21 1977-08-15 Philips Nv Uitgangsstof voor de vervaardiging van een permanente magneet, werkwijze voor de vervaardiging van deze uitgangsstof, alsmede permanente magneet opgebouwd uit de uitgangsstof.
DE1936508C3 (de) * 1969-07-18 1983-12-08 General Electric Co., New York, N.Y. Verfahren zur Stabilisierung der Koerzitivkraft von Pulver für Dauermagneten
CH525054A (de) * 1970-12-21 1972-07-15 Bbc Brown Boveri & Cie Verfahren zur Herstellung von Feinpartikel-Dauermagneten
NL7313860A (enExample) * 1972-11-02 1974-05-06
JPS5121947A (en) * 1974-08-16 1976-02-21 Janome Sewing Machine Co Ltd Mishinno hitoharinuiosaesochi
GB1599161A (en) * 1976-07-15 1981-09-30 Matsushita Electric Industrial Co Ltd Magnetic recording medium and method of making the same

Also Published As

Publication number Publication date
DE3102155A1 (de) 1981-12-17
JPS56104410A (en) 1981-08-20
JPS5832767B2 (ja) 1983-07-15
US4431604A (en) 1984-02-14

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Legal Events

Date Code Title Description
8101 Request for examination as to novelty
8105 Search report available
8110 Request for examination paragraph 44
8127 New person/name/address of the applicant

Owner name: YAMAHA CORP., HAMAMATSU, SHIZUOKA, JP

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee