JPS64247A - Permanent magnet material and its production - Google Patents

Permanent magnet material and its production

Info

Publication number
JPS64247A
JPS64247A JP62288346A JP28834687A JPS64247A JP S64247 A JPS64247 A JP S64247A JP 62288346 A JP62288346 A JP 62288346A JP 28834687 A JP28834687 A JP 28834687A JP S64247 A JPS64247 A JP S64247A
Authority
JP
Japan
Prior art keywords
composed principally
sheet
permanent magnet
magnetizability
magnet material
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
Application number
JP62288346A
Other languages
Japanese (ja)
Other versions
JPH01247A (en
JPH0555581B2 (en
Inventor
Toshio Mukai
Tatsuo Fujimoto
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP62-288346A priority Critical patent/JPH01247A/en
Priority claimed from JP62-288346A external-priority patent/JPH01247A/en
Publication of JPS64247A publication Critical patent/JPS64247A/en
Publication of JPH01247A publication Critical patent/JPH01247A/en
Publication of JPH0555581B2 publication Critical patent/JPH0555581B2/ja
Granted 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
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

PURPOSE:To improve magnetizability, by forming a molten metal containing rare-earth elements composed principally of Sm, Cu, Fe, Zr, B, and Co in a specific proportion into a sheet metal of a specific thickness by means of direct continuous casting and rapid cooling treatments so as to inhibit the precipitation of coarse precipitated phase. CONSTITUTION:A molten alloy consisting of, by weight, 23-28% R (rare-earth elements composed principally of Sm), 4-10% Cu, 15-25% Fe, 0.2-5% Zr, 0.005-0.06% B, and the balance Co with inevitable impurities is cast by means of the known sheet-metal direct continuous caster, which is water cooled so as to be formed into a sheet-like rapidly cooled slab of <=3mm thickness. By adding trace amounts of B in this manner, a permanent magnet material composed principally of R2Co17 intermetallic compounds and excellent in magnetizability can be obtained and the magnetization of magnetic parts can be facilitated.
JP62-288346A 1987-03-12 1987-11-17 Permanent magnet material and its manufacturing method Granted JPH01247A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62-288346A JPH01247A (en) 1987-03-12 1987-11-17 Permanent magnet material and its manufacturing method

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP62-57529 1987-03-12
JP5752987 1987-03-12
JP62-288346A JPH01247A (en) 1987-03-12 1987-11-17 Permanent magnet material and its manufacturing method

Publications (3)

Publication Number Publication Date
JPS64247A true JPS64247A (en) 1989-01-05
JPH01247A JPH01247A (en) 1989-01-05
JPH0555581B2 JPH0555581B2 (en) 1993-08-17

Family

ID=

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002083728A (en) * 2000-09-08 2002-03-22 Santoku Corp Method of manufacturing rare earth permanent magnet

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55115304A (en) * 1979-02-28 1980-09-05 Daido Steel Co Ltd Permanent magnet material
JPS5644741A (en) * 1979-09-18 1981-04-24 Hitachi Metals Ltd Permanent magnet alloy
JPS58182802A (en) * 1982-04-21 1983-10-25 Pioneer Electronic Corp Preparation of permanent magnet
JPS59153873A (en) * 1983-02-19 1984-09-01 Tdk Corp Heat treatment of permanent magnet material

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55115304A (en) * 1979-02-28 1980-09-05 Daido Steel Co Ltd Permanent magnet material
JPS5644741A (en) * 1979-09-18 1981-04-24 Hitachi Metals Ltd Permanent magnet alloy
JPS58182802A (en) * 1982-04-21 1983-10-25 Pioneer Electronic Corp Preparation of permanent magnet
JPS59153873A (en) * 1983-02-19 1984-09-01 Tdk Corp Heat treatment of permanent magnet material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002083728A (en) * 2000-09-08 2002-03-22 Santoku Corp Method of manufacturing rare earth permanent magnet

Also Published As

Publication number Publication date
JPH0555581B2 (en) 1993-08-17

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