JPS569350A - Permanent magnet material - Google Patents
Permanent magnet materialInfo
- Publication number
- JPS569350A JPS569350A JP8374079A JP8374079A JPS569350A JP S569350 A JPS569350 A JP S569350A JP 8374079 A JP8374079 A JP 8374079A JP 8374079 A JP8374079 A JP 8374079A JP S569350 A JPS569350 A JP S569350A
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- magnet material
- alloy
- heat treatment
- formula
- 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
- Hard Magnetic Materials (AREA)
Abstract
PURPOSE: To provide a permanent magnet material with high performance and good processability obtained by regulating an atomic ratio of a component composition comprising samarium, cobalt, copper, iron and hafnium.
CONSTITUTION: By adding Hf to a ferromagnetic alloy based on Sm2CO17 compound of Sm, Co, Cu, Fe type, a permanent magnet material having a high coercive force even if a content of Fe is increased or a content of Cu or Sm is decreased is obtained. The atomic ratio of this component composition is shown by the formula I. For example, the alloy shown by the formula II is obtained in a high-frequency melting furnace. The ingot of this alloy is ground to reduce the average particle size to 3μ and pressed in a magnetic field to form a molded member having magnetic anisotropy. This molded member is sintered within argon atmosphere at 1,240°C for 2hr and subjected to solution heat treatment at 1,180°C for 10hr and rapidly quenched within argon atmosphere. Subsequently, the heat treatment at 850°C for 2hr, at 800°C for 2hr and at 700°C for 5hr is carried out. Thereby, a permanent magnet with good performance is obtained.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8374079A JPS569350A (en) | 1979-07-02 | 1979-07-02 | Permanent magnet material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8374079A JPS569350A (en) | 1979-07-02 | 1979-07-02 | Permanent magnet material |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS569350A true JPS569350A (en) | 1981-01-30 |
Family
ID=13810911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8374079A Pending JPS569350A (en) | 1979-07-02 | 1979-07-02 | Permanent magnet material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS569350A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111640566A (en) * | 2020-05-20 | 2020-09-08 | 杭州三炻磁性材料有限公司 | Process method for pressing constant-pressure constant-magnetism samarium cobalt powder |
-
1979
- 1979-07-02 JP JP8374079A patent/JPS569350A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111640566A (en) * | 2020-05-20 | 2020-09-08 | 杭州三炻磁性材料有限公司 | Process method for pressing constant-pressure constant-magnetism samarium cobalt powder |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4762574A (en) | Rare earth-iron-boron premanent magnets | |
Mishima et al. | Development of a Co-free NdFeB anisotropic bonded magnet produced from the d-HDDR processed powder | |
JPS54124822A (en) | Permanent magnet material | |
JPS6325904A (en) | Permanent magnet and manufacture of the same and compound for manufacture of the permanent magnet | |
US4834812A (en) | Method for producing polymer-bonded magnets from rare earth-iron-boron compositions | |
JPS60238447A (en) | Permanent magnet containing rare earth element | |
Gauder et al. | Elevated temperature study of Nd‐Fe‐B–based magnets with cobalt and dysprosium additions | |
US4954186A (en) | Rear earth-iron-boron permanent magnets containing aluminum | |
JPS569350A (en) | Permanent magnet material | |
US4952252A (en) | Rare earth-iron-boron-permanent magnets | |
JPS55164048A (en) | Production of intermetallic compound ferromagnetic body | |
JPS57161044A (en) | Permanent magnet containing rare earth element and its manufacture | |
Kim et al. | The role of oxygen for improving magnetic properties and thermal stability of sintered (Nd, Dy)(Fe, Co) B magnets | |
JPS56150146A (en) | Production of rare earth-cobalt permanent magnet alloy | |
US4878958A (en) | Method for preparing rare earth-iron-boron permanent magnets | |
JPS56150153A (en) | Permanent magnet alloy | |
JPS5518063A (en) | Rare earth element permanent magnet | |
JPS5630708A (en) | Material of permanent magnet | |
JPS5693848A (en) | Rare earth intermetallic compound magnet | |
JPS5496421A (en) | Permanent magnet material | |
US4933009A (en) | Composition for preparing rare earth-iron-boron-permanent magnets | |
JPS5511157A (en) | Permanent magnet and manufacture thereof | |
Shibata et al. | Coercive force in heat‐treated R‐Co alloys | |
SU384922A1 (en) | ALLOY BASED ON SAMARI-COBALT SYSTEM | |
Hou-ting | Sm-Pr-Co permanent magnets with additive Fe 2 Sn |