JPS55132004A - Manufacture of rare earth metal and cobalt magnet - Google Patents

Manufacture of rare earth metal and cobalt magnet

Info

Publication number
JPS55132004A
JPS55132004A JP3963079A JP3963079A JPS55132004A JP S55132004 A JPS55132004 A JP S55132004A JP 3963079 A JP3963079 A JP 3963079A JP 3963079 A JP3963079 A JP 3963079A JP S55132004 A JPS55132004 A JP S55132004A
Authority
JP
Japan
Prior art keywords
rare earth
magnet
granular
cobalt
earth metal
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
JP3963079A
Other languages
Japanese (ja)
Inventor
Katsuhiko Yahagi
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 Instruments Inc
Original Assignee
Seiko Instruments and Electronics Ltd
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 Instruments and Electronics Ltd filed Critical Seiko Instruments and Electronics Ltd
Priority to JP3963079A priority Critical patent/JPS55132004A/en
Publication of JPS55132004A publication Critical patent/JPS55132004A/en
Pending legal-status Critical Current

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
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/0555—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together
    • H01F1/0557—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together sintered

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

PURPOSE:To improve the characteristics of residual magnetic flux density and coercive force of a rare earth metals and cobalt magnet by adding and mixing super- fine powdered metals such as Co, Fe, Ni, Mn and the like with a granular diameter of 100 through 10000Angstrom in addition to rare earth metals and cobalt alloy powder when manufacturing rare earth metal and cabalt magnet. CONSTITUTION:After mixing, vacuum dissolving and alloying one or more kinds of rare earth elements and one or more kinds of Co, Fe, Ni, Cu, Mn, Ta, V, B, Mo, and the like they are pulverized into powder and compressed in a magnetic field to mold a magnet. Then, the molded magnet is sintered at high temperatures to closely bind. However, the magnetic characteristics of the magnet will be deteriorated if the granular diametrs of rare earth elements and cobalt alloy particles are below normal 4 through 10mum. Therefore, in addition to these alloys, Fe, Co, Ni, Mn, Ag, Cu, etc. Will be finely pulverized into the granular diameter of 100 through 10000Angstrom or less and they are added by several percents to the alloy powder to make a magnet. In this case, the smaller the super-fine particles are, the better they are. However, it is specified that the granular diameter should be in a range of 100 through 10000l for better treatment.
JP3963079A 1979-04-02 1979-04-02 Manufacture of rare earth metal and cobalt magnet Pending JPS55132004A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3963079A JPS55132004A (en) 1979-04-02 1979-04-02 Manufacture of rare earth metal and cobalt magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3963079A JPS55132004A (en) 1979-04-02 1979-04-02 Manufacture of rare earth metal and cobalt magnet

Publications (1)

Publication Number Publication Date
JPS55132004A true JPS55132004A (en) 1980-10-14

Family

ID=12558411

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3963079A Pending JPS55132004A (en) 1979-04-02 1979-04-02 Manufacture of rare earth metal and cobalt magnet

Country Status (1)

Country Link
JP (1) JPS55132004A (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58182802A (en) * 1982-04-21 1983-10-25 Pioneer Electronic Corp Preparation of permanent magnet
JPS5946008A (en) * 1982-08-21 1984-03-15 Sumitomo Special Metals Co Ltd Permanent magnet
JPS6066802A (en) * 1983-09-22 1985-04-17 Daido Steel Co Ltd Permanent magnet material
US4767474A (en) * 1983-05-06 1988-08-30 Sumitomo Special Metals Co., Ltd. Isotropic magnets and process for producing same
US4770723A (en) * 1982-08-21 1988-09-13 Sumitomo Special Metals Co., Ltd. Magnetic materials and permanent magnets
US4773950A (en) * 1983-08-02 1988-09-27 Sumitomo Special Metals Co., Ltd. Permanent magnet
US4792368A (en) * 1982-08-21 1988-12-20 Sumitomo Special Metals Co., Ltd. Magnetic materials and permanent magnets
US4826546A (en) * 1984-02-28 1989-05-02 Sumitomo Special Metal Co., Ltd. Process for producing permanent magnets and products thereof
US4840684A (en) * 1983-05-06 1989-06-20 Sumitomo Special Metals Co, Ltd. Isotropic permanent magnets and process for producing same
US4859255A (en) * 1983-08-04 1989-08-22 Sumitomo Special Metals Co., Ltd. Permanent magnets
US4975130A (en) * 1983-05-21 1990-12-04 Sumitomo Special Metals Co., Ltd. Permanent magnet materials
US4981513A (en) * 1987-05-11 1991-01-01 Union Oil Company Of California Mixed particulate composition for preparing rare earth-iron-boron sintered magnets
US5015306A (en) * 1987-05-11 1991-05-14 Union Oil Company Of California Method for preparing rare earth-iron-boron sintered magnets
US5015304A (en) * 1987-05-11 1991-05-14 Union Oil Company Of California Rare earth-iron-boron sintered magnets
US5055129A (en) * 1987-05-11 1991-10-08 Union Oil Company Of California Rare earth-iron-boron sintered magnets
CN106807937A (en) * 2015-12-02 2017-06-09 镇江市润州金山金属粉末厂 A kind of high-strength aluminum-magnesium alloy powder

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58182802A (en) * 1982-04-21 1983-10-25 Pioneer Electronic Corp Preparation of permanent magnet
US4770723A (en) * 1982-08-21 1988-09-13 Sumitomo Special Metals Co., Ltd. Magnetic materials and permanent magnets
JPS5946008A (en) * 1982-08-21 1984-03-15 Sumitomo Special Metals Co Ltd Permanent magnet
US4792368A (en) * 1982-08-21 1988-12-20 Sumitomo Special Metals Co., Ltd. Magnetic materials and permanent magnets
US4840684A (en) * 1983-05-06 1989-06-20 Sumitomo Special Metals Co, Ltd. Isotropic permanent magnets and process for producing same
US4767474A (en) * 1983-05-06 1988-08-30 Sumitomo Special Metals Co., Ltd. Isotropic magnets and process for producing same
US4975130A (en) * 1983-05-21 1990-12-04 Sumitomo Special Metals Co., Ltd. Permanent magnet materials
US4773950A (en) * 1983-08-02 1988-09-27 Sumitomo Special Metals Co., Ltd. Permanent magnet
US4859255A (en) * 1983-08-04 1989-08-22 Sumitomo Special Metals Co., Ltd. Permanent magnets
JPS6066802A (en) * 1983-09-22 1985-04-17 Daido Steel Co Ltd Permanent magnet material
US4826546A (en) * 1984-02-28 1989-05-02 Sumitomo Special Metal Co., Ltd. Process for producing permanent magnets and products thereof
US5110377A (en) * 1984-02-28 1992-05-05 Sumitomo Special Metals Co., Ltd. Process for producing permanent magnets and products thereof
US4981513A (en) * 1987-05-11 1991-01-01 Union Oil Company Of California Mixed particulate composition for preparing rare earth-iron-boron sintered magnets
US5015306A (en) * 1987-05-11 1991-05-14 Union Oil Company Of California Method for preparing rare earth-iron-boron sintered magnets
US5015304A (en) * 1987-05-11 1991-05-14 Union Oil Company Of California Rare earth-iron-boron sintered magnets
US5055129A (en) * 1987-05-11 1991-10-08 Union Oil Company Of California Rare earth-iron-boron sintered magnets
CN106807937A (en) * 2015-12-02 2017-06-09 镇江市润州金山金属粉末厂 A kind of high-strength aluminum-magnesium alloy powder

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