HK39195A - Method for obtaining powdered magnetic material of the rare earth-transition metal-boron type for corrosion resistant magnets - Google Patents

Method for obtaining powdered magnetic material of the rare earth-transition metal-boron type for corrosion resistant magnets

Info

Publication number
HK39195A
HK39195A HK39195A HK39195A HK39195A HK 39195 A HK39195 A HK 39195A HK 39195 A HK39195 A HK 39195A HK 39195 A HK39195 A HK 39195A HK 39195 A HK39195 A HK 39195A
Authority
HK
Hong Kong
Prior art keywords
transition metal
rare earth
magnetic material
corrosion resistant
magnets
Prior art date
Application number
HK39195A
Other languages
English (en)
Inventor
Armand Gabriel
Masato Sagawa
Philippe Tenaud
Pierre Turillon
Fernand Vial
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 HK39195A publication Critical patent/HK39195A/xx

Links

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)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
HK39195A 1990-07-25 1995-03-16 Method for obtaining powdered magnetic material of the rare earth-transition metal-boron type for corrosion resistant magnets HK39195A (en)

Applications Claiming Priority (1)

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.

Publications (1)

Publication Number Publication Date
HK39195A true HK39195A (en) 1995-03-24

Family

ID=9399244

Family Applications (1)

Application Number Title Priority Date Filing Date
HK39195A HK39195A (en) 1990-07-25 1995-03-16 Method for obtaining powdered magnetic material of the rare earth-transition metal-boron type for corrosion resistant magnets

Country Status (12)

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

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
EP0468903A1 (fr) 1992-01-29
JP2933293B2 (ja) 1999-08-09
IE66827B1 (en) 1996-02-07
FI913546A0 (fi) 1991-07-24
ATE101451T1 (de) 1994-02-15
EP0468903B1 (fr) 1994-02-09
SG29795G (en) 1995-08-18
DE69101155D1 (de) 1994-03-24
FR2665295B1 (fr) 1994-09-16
US5221368A (en) 1993-06-22
DE69101155T2 (de) 1994-06-01
FI913546A (fi) 1992-01-26
IE912607A1 (en) 1992-01-29
JPH06120015A (ja) 1994-04-28
FR2665295A1 (fr) 1992-01-31
FI107303B (fi) 2001-06-29
ES2050519T3 (es) 1994-05-16
CA2046478A1 (fr) 1992-01-26

Similar Documents

Publication Publication Date Title
ES2006217A6 (es) Procedimiento para reducir el contenido en oxigeno de un material de tantalo yno niobio.
ES2025950A6 (es) Metodo para controlar el contenido en oxigeno de material de tantalo.
ES2021262A6 (es) Metodo para controlar el contenido en oxigeno de material de tantalo.
UA12650A (uk) Спосіб hаhесеhhя плівок hа осhові оксиду кремhію
DE3684714D1 (de) Verfahren zur herstellung von dauermagneten.
TW249859B (fi)
PL309565A1 (en) Premanent magnet material containing lantanides, iron, nitrogen and carbon
FR2387500A1 (fr) Aimants en alliage de terres rares
SG29795G (en) Method for obtaining powdered magnetic material of the rare earth-transition metal-boron type for corrosion resistant magnets
AU5484690A (en) Hard magnetic material and magnet manufactured from such hard magnetic material
EP1011113A3 (en) Method for the preparation of a rare earth permanent magnet
EP0325403A3 (en) Resin bonded magnets
FI940318A (fi) Menetelmä tiivistettyjen, Fe Nd B -tyyppisten magneettijauheiden ja kestomagneettien suojaamiseksi hapetukselta ja atmosfääriseltä korroosiolta
EP0938105A4 (fi)
EP0422424A3 (en) Electrodynamic transducer
EP0219082A3 (en) Process for preparing halogen-magnesium alanate, and its use
EP0447567A4 (en) Corrosion-resistant, rare earth-transition metal magnet and method of production thereof
KR900007004A (ko) 영구 자석의 제조방법
CS514190A3 (en) Sintered permanent magnet or a magnetic material based on rare earths, iron and boron and process for producing thereof
JPS6469001A (en) Rare-earth/iron alloy powder for resin magnet and manufacture thereof
EP0289680A3 (en) Permanent magnet and method of producing the same
AU624995C (en) Magnetic material containing rare earth element, iron, nitrogen, hydrogen and oxygen
EP0654801A3 (en) Magnetic powder, permanent magnet and manufacturing process.
AU6248190A (en) Magnetic material containing rare earth element, iron, nitrogen, hydrogen and oxygen
SE9804238D0 (sv) Iron base powder

Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20060723