ES2050519T3 - Metodo de obtencion en forma dividida de un material magnetico del tipo tierra rara-metales de transicion-boro para imanes resistentes a la corrosion. - Google Patents

Metodo de obtencion en forma dividida de un material magnetico del tipo tierra rara-metales de transicion-boro para imanes resistentes a la corrosion.

Info

Publication number
ES2050519T3
ES2050519T3 ES91420269T ES91420269T ES2050519T3 ES 2050519 T3 ES2050519 T3 ES 2050519T3 ES 91420269 T ES91420269 T ES 91420269T ES 91420269 T ES91420269 T ES 91420269T ES 2050519 T3 ES2050519 T3 ES 2050519T3
Authority
ES
Spain
Prior art keywords
obtaining
divided form
bored
corrosion
metals
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
ES91420269T
Other languages
English (en)
Inventor
Armand Gabriel
Masato Sagawa
Philippe Tenaud
Pierre Turillon
Fernand Vial
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.)
Ugimag SA
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
Application granted granted Critical
Publication of ES2050519T3 publication Critical patent/ES2050519T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

LA INVENCION SE REFIERE A UN METODO DE OBTENCION EN FORMA DIVIDIDA DE MATERIALES MAGNETICOS TIPO TR FE B FRAGILES Y RELATIVAMENTE INERTES Y QUE CONDUCEN A IMANES CON RESISTENCIA A LA CORROSION MEJORADA. ESTA CONSISTE EN TRATAR EL MATERIAL EN UNA ATMOSFERA QUE CONTIENE (O ES SUSCEPTIBLE DE CONTENER) HIDROGENO EN LAS SIGUIENTES CONDICIONES DE PRESION ABSOLUTA (P) Y DE TEMPERATURA (T C): SIENDO PA LA PRESION ATMOSFERICA. LA INVENCION SE UTILIZA PARA LA OBTENCION DE IMANES TR. FE B FRITADOS QUE TIENEN UNA RESISTENCIA A LA CORROSION MEJORADA.
ES91420269T 1990-07-25 1991-07-23 Metodo de obtencion en forma dividida de un material magnetico del tipo tierra rara-metales de transicion-boro para imanes resistentes a la corrosion. Expired - Lifetime ES2050519T3 (es)

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
ES2050519T3 true ES2050519T3 (es) 1994-05-16

Family

ID=9399244

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91420269T Expired - Lifetime ES2050519T3 (es) 1990-07-25 1991-07-23 Metodo de obtencion en forma dividida de un material magnetico del tipo tierra rara-metales de transicion-boro para imanes resistentes a la corrosion.

Country Status (12)

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

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
EP0304054B1 (en) * 1987-08-19 1994-06-08 Mitsubishi Materials Corporation Rare earth-iron-boron magnet powder and process of producing same
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
DE69101155T2 (de) 1994-06-01
FI107303B (fi) 2001-06-29
ATE101451T1 (de) 1994-02-15
DE69101155D1 (de) 1994-03-24
JP2933293B2 (ja) 1999-08-09
IE912607A1 (en) 1992-01-29
CA2046478A1 (fr) 1992-01-26
US5221368A (en) 1993-06-22
EP0468903A1 (fr) 1992-01-29
SG29795G (en) 1995-08-18
HK39195A (en) 1995-03-24
JPH06120015A (ja) 1994-04-28
FR2665295B1 (fr) 1994-09-16
EP0468903B1 (fr) 1994-02-09
FI913546L (fi) 1992-01-26
FR2665295A1 (fr) 1992-01-31
FI913546A0 (fi) 1991-07-24
IE66827B1 (en) 1996-02-07

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