JPS5587404A - Manufacture of rare-earth cobalt magnetic material - Google Patents
Manufacture of rare-earth cobalt magnetic materialInfo
- Publication number
- JPS5587404A JPS5587404A JP15913778A JP15913778A JPS5587404A JP S5587404 A JPS5587404 A JP S5587404A JP 15913778 A JP15913778 A JP 15913778A JP 15913778 A JP15913778 A JP 15913778A JP S5587404 A JPS5587404 A JP S5587404A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- rare
- cobalt
- earth
- sintering
- 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.)
- Pending
Links
Landscapes
- Powder Metallurgy (AREA)
- Hard Magnetic Materials (AREA)
Abstract
PURPOSE: To increase the mechanical strength of a magnetic body, by mixing the first powder containing rare-earth elements and cobalt and the second powder containing more quantity of cobalt than the first powder and sintering them.
CONSTITUTION: Rare-earth cobalt magnetic materials are expressed by a general formula RnCom. The amount and/or composition of the cobalt powder or the second powder are so determined that the desired composition of the rare-earth cobalt magnetic material can be obtained while containing 20% or less to the first powder as the total amount set 100%. The first and second powders are independently dissolved and crushed, and then they are mixed. Compression, sintering, solution treatment, and the like after the mixing are performed according to a conventional procedure. In the sintering process, solid diffusion or liquid-phase diffusion is caused between the second and first powders, and desired magnetic characteristics can be obtained, together with the follow-on aging treatment, and the mechanical strength can be increased.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15913778A JPS5587404A (en) | 1978-12-26 | 1978-12-26 | Manufacture of rare-earth cobalt magnetic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15913778A JPS5587404A (en) | 1978-12-26 | 1978-12-26 | Manufacture of rare-earth cobalt magnetic material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5587404A true JPS5587404A (en) | 1980-07-02 |
Family
ID=15687050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15913778A Pending JPS5587404A (en) | 1978-12-26 | 1978-12-26 | Manufacture of rare-earth cobalt magnetic material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5587404A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018088516A (en) * | 2016-11-28 | 2018-06-07 | 寧波科星材料科技有限公司Ｎｉｎｇｂｏ Ｃｏ−ｓｔａｒ Ｍａｔｅｒｉａｌｓ Ｈｉ−Ｔｅｃｈ Ｃｏ．， Ｌｔｄ． | Composite magnetic material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4930224A (en) * | 1972-07-19 | 1974-03-18 | ||
| JPS5247514A (en) * | 1975-10-14 | 1977-04-15 | Seiko Instr & Electronics Ltd | Process for producing magnet consisting of rare earth elements and cob alt |
| JPS53132427A (en) * | 1977-04-26 | 1978-11-18 | Toshiba Corp | Production of rare earth elements-cobalt magnet |
-
1978
- 1978-12-26 JP JP15913778A patent/JPS5587404A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4930224A (en) * | 1972-07-19 | 1974-03-18 | ||
| JPS5247514A (en) * | 1975-10-14 | 1977-04-15 | Seiko Instr & Electronics Ltd | Process for producing magnet consisting of rare earth elements and cob alt |
| JPS53132427A (en) * | 1977-04-26 | 1978-11-18 | Toshiba Corp | Production of rare earth elements-cobalt magnet |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018088516A (en) * | 2016-11-28 | 2018-06-07 | 寧波科星材料科技有限公司Ｎｉｎｇｂｏ Ｃｏ−ｓｔａｒ Ｍａｔｅｒｉａｌｓ Ｈｉ−Ｔｅｃｈ Ｃｏ．， Ｌｔｄ． | Composite magnetic material |
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