JPS5696804A - Permanent magnet - Google Patents
Permanent magnetInfo
- Publication number
- JPS5696804A JPS5696804A JP17296879A JP17296879A JPS5696804A JP S5696804 A JPS5696804 A JP S5696804A JP 17296879 A JP17296879 A JP 17296879A JP 17296879 A JP17296879 A JP 17296879A JP S5696804 A JPS5696804 A JP S5696804A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- permanent magnet
- sintered
- added
- produce
- 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.)
- Granted
Links
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
- H01F1/06—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 in the form of particles, e.g. powder
- H01F1/08—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 in the form of particles, e.g. powder pressed, sintered, or bound together
- H01F1/086—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 in the form of particles, e.g. powder pressed, sintered, or bound together sintered
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Hard Magnetic Materials (AREA)
Abstract
PURPOSE:To obtain a sintered permanent magnet having high density and excellent magnetic characteristics by adding infinitesimal amount of S, Si, Ti, B or the like of specified content to an Fe-Cr-Co alloy having specified composition when the alloy is sintered to produce the permanent magnet. CONSTITUTION:When the Fe-Cr-Co alloy containing 15-40% of Cr, 10-30% of Co, the residue of Fe and extremely infinitesimal amount of impurity is sintered to produce the permanent magnet, 0.01-1.0% of S is added to the alloy powder by spraying. At this time 0.05-3.0% of Si is added to the alloy or 0.05-3.0% of Ti is further added to the allow and 0.03-0.5% of B is additionally added to the mixture as required. Thereafter, a pressure of 5tons/cm<2> is applied to the mixture by pressing to thereby produce a cylindrical dust core, the dust core is then sintered at 1,300 deg.C for 2hr in vacuum, is then subject to solid solution at 1,200 deg.C and is then subject to multistage heat ageing treatments.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54172968A JPS5854486B2 (en) | 1979-12-29 | 1979-12-29 | permanent magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54172968A JPS5854486B2 (en) | 1979-12-29 | 1979-12-29 | permanent magnet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5696804A true JPS5696804A (en) | 1981-08-05 |
| JPS5854486B2 JPS5854486B2 (en) | 1983-12-05 |
Family
ID=15951689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54172968A Expired JPS5854486B2 (en) | 1979-12-29 | 1979-12-29 | permanent magnet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5854486B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015068401A1 (en) * | 2013-11-07 | 2015-05-14 | 株式会社 東芝 | Magnetic material, permanent magnet, motor, and power generator |
| CN109014191A (en) * | 2018-07-23 | 2018-12-18 | 沈阳中北真空技术有限公司 | A kind of rare earth permanent magnet vacuum heat treatment furnace and rare earth permanent magnet heat treatment method |
-
1979
- 1979-12-29 JP JP54172968A patent/JPS5854486B2/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015068401A1 (en) * | 2013-11-07 | 2015-05-14 | 株式会社 東芝 | Magnetic material, permanent magnet, motor, and power generator |
| JP5908647B2 (en) * | 2013-11-07 | 2016-04-26 | 株式会社東芝 | Magnet materials, permanent magnets, motors, and generators |
| US10361020B2 (en) | 2013-11-07 | 2019-07-23 | Kabushiki Kaisha Toshiba | Magnet material, permanent magnet, motor, and power generator |
| US11114224B2 (en) | 2013-11-07 | 2021-09-07 | Kabushiki Kaisha Toshiba | Magnet material, permanent magnet, motor, and power generator |
| CN109014191A (en) * | 2018-07-23 | 2018-12-18 | 沈阳中北真空技术有限公司 | A kind of rare earth permanent magnet vacuum heat treatment furnace and rare earth permanent magnet heat treatment method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5854486B2 (en) | 1983-12-05 |
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