JPS569350A - Permanent magnet material - Google Patents

Permanent magnet material

Info

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
Application number
JP8374079A
Other languages
Japanese (ja)
Inventor
Tatsuya Shimoda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP8374079A priority Critical patent/JPS569350A/en
Publication of JPS569350A publication Critical patent/JPS569350A/en
Pending legal-status Critical Current

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  • 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
JP8374079A 1979-07-02 1979-07-02 Permanent magnet material Pending JPS569350A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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

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