EP0997915A3 - Poudre de fer en particules planes, méthode de fabrication et noyau magnétique en poudre de cela - Google Patents
Poudre de fer en particules planes, méthode de fabrication et noyau magnétique en poudre de cela Download PDFInfo
- Publication number
- EP0997915A3 EP0997915A3 EP99119376A EP99119376A EP0997915A3 EP 0997915 A3 EP0997915 A3 EP 0997915A3 EP 99119376 A EP99119376 A EP 99119376A EP 99119376 A EP99119376 A EP 99119376A EP 0997915 A3 EP0997915 A3 EP 0997915A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- same
- powder
- flat
- magnetic core
- iron powder
- 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- Withdrawn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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract 3
- 239000000843 powder Substances 0.000 title abstract 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 230000035699 permeability Effects 0.000 abstract 1
- 229910000859 α-Fe Inorganic materials 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder
-
- 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
- H01F1/12—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 soft-magnetic materials
- H01F1/14—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 soft-magnetic materials metals or alloys
- H01F1/20—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 soft-magnetic materials metals or alloys in the form of particles, e.g. powder
-
- 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
- H01F1/12—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 soft-magnetic materials
- H01F1/14—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 soft-magnetic materials metals or alloys
- H01F1/20—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 soft-magnetic materials metals or alloys in the form of particles, e.g. powder
- H01F1/22—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 soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
- H01F1/24—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 soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/08—Cores, Yokes, or armatures made from powder
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Soft Magnetic Materials (AREA)
- Powder Metallurgy (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27787898 | 1998-10-30 | ||
| JP27787898 | 1998-10-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0997915A2 EP0997915A2 (fr) | 2000-05-03 |
| EP0997915A3 true EP0997915A3 (fr) | 2000-06-21 |
Family
ID=17589557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99119376A Withdrawn EP0997915A3 (fr) | 1998-10-30 | 1999-09-29 | Poudre de fer en particules planes, méthode de fabrication et noyau magnétique en poudre de cela |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0997915A3 (fr) |
| CA (1) | CA2284139A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7323214B2 (en) * | 2001-11-09 | 2008-01-29 | Tdk Corporation | Composite magnetic material electromagnetic wave absorbing sheet method for manufacturing sheet-like product and method for manufacturing electromagnetic wave absorbing sheet |
| CN113096948B (zh) * | 2021-03-16 | 2022-06-07 | 深圳顺络电子股份有限公司 | 一种高磁导率高饱和软磁合金材料及其制备方法 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2354331A (en) * | 1941-05-05 | 1944-07-25 | Wladimir J Polydoroff | High-frequency ferroinductor |
| US5160447A (en) * | 1988-02-29 | 1992-11-03 | Kabushiki Kaisha Sankyo Seiki Seisakusho | Compressed powder magnetic core and method for fabricating same |
| WO1996030144A1 (fr) * | 1995-03-28 | 1996-10-03 | Höganäs Ab | Materiaux composites anisotropes magnetiques doux |
-
1999
- 1999-09-28 CA CA 2284139 patent/CA2284139A1/fr not_active Abandoned
- 1999-09-29 EP EP99119376A patent/EP0997915A3/fr not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2354331A (en) * | 1941-05-05 | 1944-07-25 | Wladimir J Polydoroff | High-frequency ferroinductor |
| US5160447A (en) * | 1988-02-29 | 1992-11-03 | Kabushiki Kaisha Sankyo Seiki Seisakusho | Compressed powder magnetic core and method for fabricating same |
| WO1996030144A1 (fr) * | 1995-03-28 | 1996-10-03 | Höganäs Ab | Materiaux composites anisotropes magnetiques doux |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0997915A2 (fr) | 2000-05-03 |
| CA2284139A1 (fr) | 2000-03-30 |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| RIC1 | Information provided on ipc code assigned before grant |
Free format text: 7H 01F 1/20 A, 7H 01F 1/24 B, 7H 01F 3/08 B, 7H 01F 41/02 B, 7H 01F 1/22 B, 7H 01F 1/26 B |
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| 17P | Request for examination filed |
Effective date: 20001018 |
|
| AKX | Designation fees paid |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
| 18W | Application withdrawn |
Withdrawal date: 20011018 |