JPS6461001A - Manufacture of permanent magnet powder - Google Patents

Manufacture of permanent magnet powder

Info

Publication number
JPS6461001A
JPS6461001A JP62218540A JP21854087A JPS6461001A JP S6461001 A JPS6461001 A JP S6461001A JP 62218540 A JP62218540 A JP 62218540A JP 21854087 A JP21854087 A JP 21854087A JP S6461001 A JPS6461001 A JP S6461001A
Authority
JP
Japan
Prior art keywords
melted
alloy
fine powder
nozzle
permanent magnet
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
JP62218540A
Other languages
Japanese (ja)
Inventor
Masami Yamamoto
Takeshi Masumoto
Akihisa Inoue
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.)
Kubota Corp
Original Assignee
Kubota Corp
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 Kubota Corp filed Critical Kubota Corp
Priority to JP62218540A priority Critical patent/JPS6461001A/en
Publication of JPS6461001A publication Critical patent/JPS6461001A/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
    • H01F1/06—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 in the form of particles, e.g. powder
    • H01F1/066—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 in the form of particles, e.g. powder obtained by liquid dynamic compaction

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

PURPOSE:To obtain fine powder having a spherical shape by blowing inert gas under injecting pressure of 50kg/cm<2> or more to melted permanent magnet alloy flow while feeding the melted alloy from a nozzle, and quickly cooling to form fine powder. CONSTITUTION:Melted permanent magnet alloy M having predetermined composition is melted in a high frequency melting furnace 2. The melted alloy M is fed out from a melted alloy nozzle 4 at the bottom of the furnace by the operation of a stopper 3. A slender melted alloy flow from the nozzle 4 is quickly cooled to be formed in fine powder by blowing inert gas of high pressure (50kg/cm<2> or more) injected from a primary nozzle 5. The quickly cooled alloy formed in fine powder is dropped while being further cooled by inert gas flow injected from a secondary nozzle 6, and recovered in a lower cyclone 7. Thus, fine powder having spherical shape is obtained.
JP62218540A 1987-09-01 1987-09-01 Manufacture of permanent magnet powder Pending JPS6461001A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62218540A JPS6461001A (en) 1987-09-01 1987-09-01 Manufacture of permanent magnet powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62218540A JPS6461001A (en) 1987-09-01 1987-09-01 Manufacture of permanent magnet powder

Publications (1)

Publication Number Publication Date
JPS6461001A true JPS6461001A (en) 1989-03-08

Family

ID=16721528

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62218540A Pending JPS6461001A (en) 1987-09-01 1987-09-01 Manufacture of permanent magnet powder

Country Status (1)

Country Link
JP (1) JPS6461001A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0411591A2 (en) * 1989-07-31 1991-02-06 Kabushiki Kaisha Toshiba Cold accumulating material and method of manufacturing the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6017905A (en) * 1983-07-08 1985-01-29 Sumitomo Special Metals Co Ltd Permanent magnet alloy powder
JPS63109101A (en) * 1986-10-27 1988-05-13 Kobe Steel Ltd Production of nd-b-fe alloy powder for magnet

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6017905A (en) * 1983-07-08 1985-01-29 Sumitomo Special Metals Co Ltd Permanent magnet alloy powder
JPS63109101A (en) * 1986-10-27 1988-05-13 Kobe Steel Ltd Production of nd-b-fe alloy powder for magnet

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0411591A2 (en) * 1989-07-31 1991-02-06 Kabushiki Kaisha Toshiba Cold accumulating material and method of manufacturing the same
JPH03174486A (en) * 1989-07-31 1991-07-29 Toshiba Corp Cooling energy storage material and manufacture thereof
EP0411591A3 (en) * 1989-07-31 1991-10-16 Kabushiki Kaisha Toshiba Cold accumulating material and method of manufacturing the same
EP0774522A3 (en) * 1989-07-31 1997-06-04 Kabushiki Kaisha Toshiba A method of manufacturing a cold accumulating material and a refrigerator using the cold accumulating material

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