JPS57198228A - Production of permanent magnet material - Google Patents
Production of permanent magnet materialInfo
- Publication number
- JPS57198228A JPS57198228A JP56081840A JP8184081A JPS57198228A JP S57198228 A JPS57198228 A JP S57198228A JP 56081840 A JP56081840 A JP 56081840A JP 8184081 A JP8184081 A JP 8184081A JP S57198228 A JPS57198228 A JP S57198228A
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- magnet
- cooled
- rare earth
- heating
- 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
Landscapes
- Powder Metallurgy (AREA)
- Hard Magnetic Materials (AREA)
Abstract
PURPOSE: To improve magnetic characteristics of a permanent magnet consisting essentially of rare earth metals and an intermetallic compd. of Co in producing said magnet by setting the heating speed during calcining at specific values or above.
CONSTITUTION: The metallic compounded raw materials of the compsn. consisting of 24W28% Sm as rare earth metal, 0W20% Cu, 0W35% Fe, 0W15% Zr, 0W1% Ti and the balance Co are melted by high frequency induction heating in Ar atmospheric gas. After such alloy is cooled and solidified, it is pulverized and is pressurized and molded in a magnetic field. This is heated and calcined to 1,180W1,230°C at 250°C/hour heating rates in an inert gaseous atmosphere of Ar or the like and is further subjected to a solution heat treatment at 1,150W 1,200°C. In succession to this, it is held at 700W950°C for ≥10 minutes, after which it is cooled at ≤5°C/min cooling rates. The permanent magnet of large residual magnetic flux density, coercive force, and energy product, high curie temp. and excellent magnet characteristics is obtained.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56081840A JPS5853055B2 (en) | 1981-05-30 | 1981-05-30 | Manufacturing method of permanent magnet material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56081840A JPS5853055B2 (en) | 1981-05-30 | 1981-05-30 | Manufacturing method of permanent magnet material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57198228A true JPS57198228A (en) | 1982-12-04 |
| JPS5853055B2 JPS5853055B2 (en) | 1983-11-26 |
Family
ID=13757658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56081840A Expired JPS5853055B2 (en) | 1981-05-30 | 1981-05-30 | Manufacturing method of permanent magnet material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5853055B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6070102A (en) * | 1983-08-19 | 1985-04-20 | Tohoku Metal Ind Ltd | Atmosphere sintering method |
| US9087631B2 (en) | 2008-11-19 | 2015-07-21 | Kabushiki Kaisha Toshiba | Permanent magnet and method of manufacturing the same, and motor and power generator using the same |
| US9774219B2 (en) | 2009-08-06 | 2017-09-26 | Kabushiki Kaisha Toshiba | Permanent magnet, motor and electric generator |
-
1981
- 1981-05-30 JP JP56081840A patent/JPS5853055B2/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6070102A (en) * | 1983-08-19 | 1985-04-20 | Tohoku Metal Ind Ltd | Atmosphere sintering method |
| US9087631B2 (en) | 2008-11-19 | 2015-07-21 | Kabushiki Kaisha Toshiba | Permanent magnet and method of manufacturing the same, and motor and power generator using the same |
| US9774219B2 (en) | 2009-08-06 | 2017-09-26 | Kabushiki Kaisha Toshiba | Permanent magnet, motor and electric generator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5853055B2 (en) | 1983-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4801340A (en) | Method for manufacturing permanent magnets | |
| CN105489331B (en) | A kind of preparation method of Rare-Earth Cobalt sill | |
| EP0029071B1 (en) | Process for producing permanent magnet alloy | |
| GB1523460A (en) | Permanent magnetic material containing samarium cobalt copper and iron and method for producing and using the said material | |
| JPS6431922A (en) | Manufacture of fe-base magnetic alloy | |
| JPS57198228A (en) | Production of permanent magnet material | |
| JPS61208808A (en) | Manufacture of sintered magnet | |
| JPS61119006A (en) | Manufacture of sintered magnet | |
| JPS6230846A (en) | Production of permanent magnet material | |
| JPH058562B2 (en) | ||
| JPS61208809A (en) | Manufacture of sintered magnet | |
| JPS5526692A (en) | Permanent magnet | |
| JPS61214402A (en) | Manufacture of sintered magnet | |
| SU1360464A1 (en) | Iron-base sintered alloy for permanent magnet and method of its realization | |
| JPH0582319A (en) | Permanent magnet | |
| JPS6347301A (en) | Production of permanent magnet powder | |
| JPH07240307A (en) | Nitrogen-bearing rare-earth permanent magnet and its manufacture | |
| JP3227613B2 (en) | Manufacturing method of powder for rare earth sintered magnet | |
| JPS5710210A (en) | Manufacture of permanent magnet material | |
| JPS60165702A (en) | Manufacture of permanent magnet | |
| JPH01171219A (en) | Manufacture of permanent magnet integral with york | |
| JPS61270316A (en) | Production of raw material powder for resin bonded permanent alloy | |
| JPH0457741B2 (en) | ||
| JPS556479A (en) | Permanent magnet material | |
| JPH05243025A (en) | Permanent magnet material and manufacture thereof |