EP0255816A3 - Procédé de préparation de poudre magnétiquement dure, résistant à la corrosion, pour la fabrication d'aimants; aimants fabriqués à partir de poudre magnétiquement dure et leur procédé de fabrication - Google Patents
Procédé de préparation de poudre magnétiquement dure, résistant à la corrosion, pour la fabrication d'aimants; aimants fabriqués à partir de poudre magnétiquement dure et leur procédé de fabrication Download PDFInfo
- Publication number
- EP0255816A3 EP0255816A3 EP87890182A EP87890182A EP0255816A3 EP 0255816 A3 EP0255816 A3 EP 0255816A3 EP 87890182 A EP87890182 A EP 87890182A EP 87890182 A EP87890182 A EP 87890182A EP 0255816 A3 EP0255816 A3 EP 0255816A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- permanent
- magnet
- powder
- manufacturing
- corrosion resistant
- 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.)
- Withdrawn
Links
- 239000000843 powder Substances 0.000 title abstract 5
- 238000004519 manufacturing process Methods 0.000 title abstract 4
- 238000005260 corrosion Methods 0.000 title abstract 3
- 230000007797 corrosion Effects 0.000 title abstract 3
- 238000002360 preparation method Methods 0.000 title 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 4
- 229910052751 metal Inorganic materials 0.000 abstract 3
- 239000002184 metal Substances 0.000 abstract 3
- 239000002245 particle Substances 0.000 abstract 3
- 239000000956 alloy Substances 0.000 abstract 2
- 229910045601 alloy Inorganic materials 0.000 abstract 2
- 239000000919 ceramic Substances 0.000 abstract 2
- 229910052742 iron Inorganic materials 0.000 abstract 2
- 239000006247 magnetic powder Substances 0.000 abstract 2
- 239000011241 protective layer Substances 0.000 abstract 2
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical group [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract 1
- 229910052758 niobium Inorganic materials 0.000 abstract 1
- 239000010955 niobium Substances 0.000 abstract 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 238000005245 sintering Methods 0.000 abstract 1
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
- H01F1/047—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
- H01F1/0575—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 pressed, sintered or bonded together
- H01F1/0578—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 pressed, sintered or bonded together bonded together
-
- 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
- H01F1/0572—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 with a protective layer
-
- 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
- H01F1/0575—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 pressed, sintered or bonded together
- H01F1/0576—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 pressed, sintered or bonded together pressed, e.g. hot working
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)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT209386A AT386554B (de) | 1986-08-04 | 1986-08-04 | Verfahren zur herstellung korrosionsbestaendiger, hartmagnetischer pulver fuer die magneterzeugung, magnete aus hartmagnetischem pulver und verfahren zu deren herstellung |
| AT2093/86 | 1986-08-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0255816A2 EP0255816A2 (fr) | 1988-02-10 |
| EP0255816A3 true EP0255816A3 (fr) | 1988-12-21 |
Family
ID=3527596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP87890182A Withdrawn EP0255816A3 (fr) | 1986-08-04 | 1987-07-31 | Procédé de préparation de poudre magnétiquement dure, résistant à la corrosion, pour la fabrication d'aimants; aimants fabriqués à partir de poudre magnétiquement dure et leur procédé de fabrication |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0255816A3 (fr) |
| JP (1) | JPS6338216A (fr) |
| AT (1) | AT386554B (fr) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2623731B2 (ja) * | 1988-07-29 | 1997-06-25 | 三菱マテリアル株式会社 | 希土類―Ｆｅ―Ｂ系異方性永久磁石の製造法 |
| JPH0283905A (ja) * | 1988-09-20 | 1990-03-26 | Sumitomo Special Metals Co Ltd | 耐食性永久磁石およびその製造方法 |
| EP0452580B1 (fr) * | 1990-04-19 | 1999-06-23 | Seiko Epson Corporation | Aimant à liant résineux et son procédé de fabrication |
| JP3047239B2 (ja) * | 1989-04-14 | 2000-05-29 | 日立金属株式会社 | 温間加工磁石及びその製造方法 |
| US4990876A (en) * | 1989-09-15 | 1991-02-05 | Eastman Kodak Company | Magnetic brush, inner core therefor, and method for making such core |
| CA2070808A1 (fr) * | 1990-10-09 | 1992-04-10 | Barbara K. Lograsso | Methode de fabrication d'aimants permanents |
| GB9803970D0 (en) | 1998-02-26 | 1998-04-22 | Univ Birmingham | Method of applying a corrosion-resistant coating |
| DE19902679C1 (de) * | 1999-01-23 | 2000-11-16 | Harman Audio Electronic Sys | Lautsprecher |
| TW563139B (en) * | 2000-11-30 | 2003-11-21 | Nec Tokin Corp | Magnetic core including magnet for magnetic bias and inductor component using the same |
| DE102013004985A1 (de) | 2012-11-14 | 2014-05-15 | Volkswagen Aktiengesellschaft | Verfahren zur Herstellung eines Permanentmagneten sowie Permanentmagnet |
| DE102013213494A1 (de) | 2013-07-10 | 2015-01-29 | Volkswagen Aktiengesellschaft | Verfahren zur Herstellung eines Permanentmagneten sowie Permanentmagnet und elektrische Maschine mit einem solchen |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59155106A (ja) * | 1983-02-23 | 1984-09-04 | Hitachi Maxell Ltd | 金属磁性粉末の製造法 |
| EP0125752A2 (fr) * | 1983-05-09 | 1984-11-21 | General Motors Corporation | Aimants comportant des particules du système terre rare-fer et un liant |
| JPS6054406A (ja) * | 1983-09-03 | 1985-03-28 | Sumitomo Special Metals Co Ltd | 耐酸化性のすぐれた永久磁石 |
| JPS60189901A (ja) * | 1984-03-09 | 1985-09-27 | 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 |
| EP0190461A2 (fr) * | 1984-12-24 | 1986-08-13 | Sumitomo Special Metals Co., Ltd. | Procédé pour la fabrication d'aimants permanents et aimant permanent |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1914137B2 (de) * | 1969-03-20 | 1976-09-23 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zur herstellung von dauermagneten |
| DE2421605B2 (de) * | 1974-05-04 | 1977-05-05 | Verfahren zur herstellung von pulver fuer dauermagneten auf der basis von kobalt-seltenerden-verbindungen |
-
1986
- 1986-08-04 AT AT209386A patent/AT386554B/de not_active IP Right Cessation
-
1987
- 1987-07-28 JP JP62186775A patent/JPS6338216A/ja active Pending
- 1987-07-31 EP EP87890182A patent/EP0255816A3/fr not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59155106A (ja) * | 1983-02-23 | 1984-09-04 | Hitachi Maxell Ltd | 金属磁性粉末の製造法 |
| EP0125752A2 (fr) * | 1983-05-09 | 1984-11-21 | General Motors Corporation | Aimants comportant des particules du système terre rare-fer et un liant |
| JPS6054406A (ja) * | 1983-09-03 | 1985-03-28 | Sumitomo Special Metals Co Ltd | 耐酸化性のすぐれた永久磁石 |
| JPS60189901A (ja) * | 1984-03-09 | 1985-09-27 | 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 |
| EP0190461A2 (fr) * | 1984-12-24 | 1986-08-13 | Sumitomo Special Metals Co., Ltd. | Procédé pour la fabrication d'aimants permanents et aimant permanent |
Non-Patent Citations (4)
| Title |
|---|
| CHEMICAL ABSTRACTS, Band 104, Nr. 24, Juni 1986, Seite 705, Zusammenfassung Nr. 217825y, Columbus, Ohio, US; A.S. KONONENKO et al.: "Effect of heat treatment on the coercive force of neodymium-iron-boron alloy magnets", & IZV. AKAD. NAUK SSSR, MET. 1986, (2), 182-4 * |
| PATENT ABSTRACTS OF JAPAN, Band 10, Nr. 32 (E-379)[2089], 7. Februar 1986; & JP-A-60 189 901 (SUMITOMO TOKUSHIYU KINZOKU K.K.) 27-09-1985 * |
| PATENT ABSTRACTS OF JAPAN, Band 9, Nr. 185 (E-332)[1908], 31. Juli 1985; & JP-A-60 54 406 (SUMITOMO TOKUSHIYU KINZOKU K.K.) 28-03-1985 * |
| PATENT ABSTRACTS OF JAPAN, Band 9, Nr. 4 (E-288)[1727], 10. Januar 1985; & JP-A-59 155 106 (HITACHI MAXELL K.K.) 04-09-1984 * |
Also Published As
| Publication number | Publication date |
|---|---|
| AT386554B (de) | 1988-09-12 |
| ATA209386A (de) | 1988-02-15 |
| JPS6338216A (ja) | 1988-02-18 |
| EP0255816A2 (fr) | 1988-02-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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| AK | Designated contracting states |
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| PUAL | Search report despatched |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 19890622 |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: WINKLER, HERWIG, DR. Inventor name: BOUVIER, ALEXANDER, DR. |