FI107303B - Menetelmä harvinaisten maametallien/boorisiirtymämetallien tyyppiä olevan magneettisen aineen saamiseksi hienojakoisena korroosionkestäviä magneetteja varten - Google Patents

Menetelmä harvinaisten maametallien/boorisiirtymämetallien tyyppiä olevan magneettisen aineen saamiseksi hienojakoisena korroosionkestäviä magneetteja varten Download PDF

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Publication number
FI107303B
FI107303B FI913546A FI913546A FI107303B FI 107303 B FI107303 B FI 107303B FI 913546 A FI913546 A FI 913546A FI 913546 A FI913546 A FI 913546A FI 107303 B FI107303 B FI 107303B
Authority
FI
Finland
Prior art keywords
log
magnets
hydride
rare earth
temperature
Prior art date
Application number
FI913546A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI913546A (fi
FI913546A0 (fi
Inventor
Masato Sagawa
Armand Gabriel
Philippe Tenaud
Fernand Vial
Pierre Turillon
Original Assignee
Ugimag Sa
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 Ugimag Sa filed Critical Ugimag Sa
Publication of FI913546A0 publication Critical patent/FI913546A0/fi
Publication of FI913546A publication Critical patent/FI913546A/fi
Application granted granted Critical
Publication of FI107303B publication Critical patent/FI107303B/fi

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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
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/023—Hydrogen absorption
    • 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
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0573—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes obtained by reduction or by hydrogen decrepitation or embrittlement

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Powder Metallurgy (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
FI913546A 1990-07-25 1991-07-24 Menetelmä harvinaisten maametallien/boorisiirtymämetallien tyyppiä olevan magneettisen aineen saamiseksi hienojakoisena korroosionkestäviä magneetteja varten FI107303B (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR909009722A FR2665295B1 (fr) 1990-07-25 1990-07-25 Methode d'obtention sous forme divisee d'un materiau magnetique de type terre-rare - metaux de transition - bore pour des aimants resistant a la corrosion.
FR9009722 1990-07-25

Publications (3)

Publication Number Publication Date
FI913546A0 FI913546A0 (fi) 1991-07-24
FI913546A FI913546A (fi) 1992-01-26
FI107303B true FI107303B (fi) 2001-06-29

Family

ID=9399244

Family Applications (1)

Application Number Title Priority Date Filing Date
FI913546A FI107303B (fi) 1990-07-25 1991-07-24 Menetelmä harvinaisten maametallien/boorisiirtymämetallien tyyppiä olevan magneettisen aineen saamiseksi hienojakoisena korroosionkestäviä magneetteja varten

Country Status (12)

Country Link
US (1) US5221368A (fr)
EP (1) EP0468903B1 (fr)
JP (1) JP2933293B2 (fr)
AT (1) ATE101451T1 (fr)
CA (1) CA2046478A1 (fr)
DE (1) DE69101155T2 (fr)
ES (1) ES2050519T3 (fr)
FI (1) FI107303B (fr)
FR (1) FR2665295B1 (fr)
HK (1) HK39195A (fr)
IE (1) IE66827B1 (fr)
SG (1) SG29795G (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5788782A (en) * 1993-10-14 1998-08-04 Sumitomo Special Metals Co., Ltd. R-FE-B permanent magnet materials and process of producing the same
JP2881409B2 (ja) * 1996-10-28 1999-04-12 愛知製鋼株式会社 異方性磁石粉末の製造方法
JP3452254B2 (ja) 2000-09-20 2003-09-29 愛知製鋼株式会社 異方性磁石粉末の製造方法、異方性磁石粉末の原料粉末およびボンド磁石

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60119701A (ja) * 1983-12-01 1985-06-27 Sumitomo Special Metals Co Ltd 希土類・ボロン・鉄系永久磁石用合金粉末の製造方法
JPS6390104A (ja) * 1986-10-03 1988-04-21 Tdk Corp 希土類−鉄−ホウ素系永久磁石の製造方法
GB2201426B (en) * 1987-02-27 1990-05-30 Philips Electronic Associated Improved method for the manufacture of rare earth transition metal alloy magnets
JPS6448403A (en) * 1987-08-19 1989-02-22 Mitsubishi Metal Corp Rare earth-iron-boron magnet powder and manufacture thereof
DE3850001T2 (de) * 1987-08-19 1994-11-03 Mitsubishi Materials Corp Magnetisches Seltenerd-Eisen-Bor-Puder und sein Herstellungsverfahren.
JP2564492B2 (ja) * 1987-10-13 1996-12-18 三菱マテリアル株式会社 希土類−Ｆｅ−Ｂ系鋳造体永久磁石の製造法
US5091020A (en) * 1990-11-20 1992-02-25 Crucible Materials Corporation Method and particle mixture for making rare earth element, iron and boron permanent sintered magnets

Also Published As

Publication number Publication date
US5221368A (en) 1993-06-22
JP2933293B2 (ja) 1999-08-09
HK39195A (en) 1995-03-24
IE912607A1 (en) 1992-01-29
FR2665295B1 (fr) 1994-09-16
SG29795G (en) 1995-08-18
DE69101155T2 (de) 1994-06-01
IE66827B1 (en) 1996-02-07
FR2665295A1 (fr) 1992-01-31
DE69101155D1 (de) 1994-03-24
FI913546A (fi) 1992-01-26
JPH06120015A (ja) 1994-04-28
ATE101451T1 (de) 1994-02-15
FI913546A0 (fi) 1991-07-24
EP0468903A1 (fr) 1992-01-29
CA2046478A1 (fr) 1992-01-26
ES2050519T3 (es) 1994-05-16
EP0468903B1 (fr) 1994-02-09

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HC Name/ company changed in application

Owner name: UGIMAG S.A

MA Patent expired