SG29795G - 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 magnetsInfo
- Publication number
- SG29795G SG29795G SG29795A SG29795A SG29795G SG 29795 G SG29795 G SG 29795G SG 29795 A SG29795 A SG 29795A SG 29795 A SG29795 A SG 29795A SG 29795 G SG29795 G SG 29795G
- Authority
- SG
- Singapore
- Prior art keywords
- transition metal
- rare earth
- magnetic material
- corrosion resistant
- magnets
- Prior art date
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)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SG29795A SG29795G (en) | 1990-07-25 | 1995-02-20 | Method for obtaining powdered magnetic material of the rare earth-transition metal-boron type for corrosion resistant magnets |
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. |
SG29795A SG29795G (en) | 1990-07-25 | 1995-02-20 | Method for obtaining powdered magnetic material of the rare earth-transition metal-boron type for corrosion resistant magnets |
Publications (1)
Publication Number | Publication Date |
---|---|
SG29795G true SG29795G (en) | 1995-08-18 |
Family
ID=9399244
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG29795A SG29795G (en) | 1990-07-25 | 1995-02-20 | 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 (ja) |
EP (1) | EP0468903B1 (ja) |
JP (1) | JP2933293B2 (ja) |
AT (1) | ATE101451T1 (ja) |
CA (1) | CA2046478A1 (ja) |
DE (1) | DE69101155T2 (ja) |
ES (1) | ES2050519T3 (ja) |
FI (1) | FI107303B (ja) |
FR (1) | FR2665295B1 (ja) |
HK (1) | HK39195A (ja) |
IE (1) | IE66827B1 (ja) |
SG (1) | SG29795G (ja) |
Families Citing this family (3)
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)
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 |
EP0304054B1 (en) * | 1987-08-19 | 1994-06-08 | Mitsubishi Materials Corporation | Rare earth-iron-boron magnet powder and process of producing same |
JPS6448403A (en) * | 1987-08-19 | 1989-02-22 | Mitsubishi Metal Corp | Rare earth-iron-boron magnet powder and manufacture thereof |
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 |
-
1990
- 1990-07-25 FR FR909009722A patent/FR2665295B1/fr not_active Expired - Fee Related
-
1991
- 1991-07-08 CA CA002046478A patent/CA2046478A1/fr not_active Abandoned
- 1991-07-23 DE DE69101155T patent/DE69101155T2/de not_active Expired - Fee Related
- 1991-07-23 ES ES91420269T patent/ES2050519T3/es not_active Expired - Lifetime
- 1991-07-23 AT AT91420269T patent/ATE101451T1/de not_active IP Right Cessation
- 1991-07-23 EP EP91420269A patent/EP0468903B1/fr not_active Expired - Lifetime
- 1991-07-24 FI FI913546A patent/FI107303B/fi not_active IP Right Cessation
- 1991-07-24 IE IE260791A patent/IE66827B1/en not_active IP Right Cessation
- 1991-07-25 JP JP3186579A patent/JP2933293B2/ja not_active Expired - Fee Related
- 1991-07-25 US US07/735,893 patent/US5221368A/en not_active Expired - Lifetime
-
1995
- 1995-02-20 SG SG29795A patent/SG29795G/en unknown
- 1995-03-16 HK HK39195A patent/HK39195A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FR2665295A1 (fr) | 1992-01-31 |
DE69101155D1 (de) | 1994-03-24 |
IE66827B1 (en) | 1996-02-07 |
EP0468903B1 (fr) | 1994-02-09 |
US5221368A (en) | 1993-06-22 |
FI107303B (fi) | 2001-06-29 |
DE69101155T2 (de) | 1994-06-01 |
JP2933293B2 (ja) | 1999-08-09 |
FI913546A0 (fi) | 1991-07-24 |
EP0468903A1 (fr) | 1992-01-29 |
IE912607A1 (en) | 1992-01-29 |
FR2665295B1 (fr) | 1994-09-16 |
ES2050519T3 (es) | 1994-05-16 |
HK39195A (en) | 1995-03-24 |
JPH06120015A (ja) | 1994-04-28 |
FI913546A (fi) | 1992-01-26 |
ATE101451T1 (de) | 1994-02-15 |
CA2046478A1 (fr) | 1992-01-26 |
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