JPS6487745A - Permanent magnet material and its manufacture - Google Patents

Permanent magnet material and its manufacture

Info

Publication number
JPS6487745A
JPS6487745A JP62245672A JP24567287A JPS6487745A JP S6487745 A JPS6487745 A JP S6487745A JP 62245672 A JP62245672 A JP 62245672A JP 24567287 A JP24567287 A JP 24567287A JP S6487745 A JPS6487745 A JP S6487745A
Authority
JP
Japan
Prior art keywords
permanent magnet
sintering
subjected
alloy
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.)
Pending
Application number
JP62245672A
Other languages
Japanese (ja)
Inventor
Noriyuki Inoue
Katsumi Takahashi
Nobuo Imaizumi
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.)
Namiki Precision Jewel Co Ltd
Original Assignee
Namiki Precision Jewel Co 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 Namiki Precision Jewel Co Ltd filed Critical Namiki Precision Jewel Co Ltd
Priority to JP62245672A priority Critical patent/JPS6487745A/en
Publication of JPS6487745A publication Critical patent/JPS6487745A/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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/007—Heat treatment of ferrous alloys containing Co

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

PURPOSE:To easily manufacture a permanent magnet material excellent in magnetic properties by crushing an alloy having a specific composition consisting of Y-including rare-earth elements, Co, Fe, Ti, Zr, and Hf and subjecting the resulting powder to compaction in a magnetic field, to sintering at a specific temp., and then to rapid cooling. CONSTITUTION:An alloy having a composition represented by a general formula R(T1-yMy)z [where R means rare-earth elements including Y, T means Co or Co+Fe, M consists of at least one element among Ti, Zr, and Hf, and the symbols (y) and (z) stand for 0.001-0.05 and 5-6, respectively] is crushed and pulverized. This pulverized alloy is compacted in a magnetic field of about 20kOe at a pressure of about 4t/cm<2>. The resulting green compact is sintered in vacuum or in an inert gas at a temp. in a region of 1,100-1,200 deg.C. This sintered compact is subjected to sintering and then to rapid cooling without delay or is subjected to sintering and then to furnace cooling, and subsequently, the sintered compact is subjected to solution heat treatment and then to rapid cooling. By this method, the permanent magnet material improved in magnetic properties while maintaining easily magnetizable characteristic can be obtained.
JP62245672A 1987-09-29 1987-09-29 Permanent magnet material and its manufacture Pending JPS6487745A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62245672A JPS6487745A (en) 1987-09-29 1987-09-29 Permanent magnet material and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62245672A JPS6487745A (en) 1987-09-29 1987-09-29 Permanent magnet material and its manufacture

Publications (1)

Publication Number Publication Date
JPS6487745A true JPS6487745A (en) 1989-03-31

Family

ID=17137098

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62245672A Pending JPS6487745A (en) 1987-09-29 1987-09-29 Permanent magnet material and its manufacture

Country Status (1)

Country Link
JP (1) JPS6487745A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5482573A (en) * 1991-10-16 1996-01-09 Kabushiki Kaisha Toshiba Magnetic material

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5314611A (en) * 1976-07-28 1978-02-09 Hitachi Metals Ltd Permanent magnetic alloy
JPS62241304A (en) * 1986-04-12 1987-10-22 Shin Etsu Chem Co Ltd rare earth permanent magnet
JPS62241303A (en) * 1986-04-12 1987-10-22 Shin Etsu Chem Co Ltd Rare earth permanent magnet
JPS6476703A (en) * 1987-09-17 1989-03-22 Shinetsu Chemical Co Rare earth element permanent magnet

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5314611A (en) * 1976-07-28 1978-02-09 Hitachi Metals Ltd Permanent magnetic alloy
JPS62241304A (en) * 1986-04-12 1987-10-22 Shin Etsu Chem Co Ltd rare earth permanent magnet
JPS62241303A (en) * 1986-04-12 1987-10-22 Shin Etsu Chem Co Ltd Rare earth permanent magnet
JPS6476703A (en) * 1987-09-17 1989-03-22 Shinetsu Chemical Co Rare earth element permanent magnet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5482573A (en) * 1991-10-16 1996-01-09 Kabushiki Kaisha Toshiba Magnetic material

Similar Documents

Publication Publication Date Title
GB1438457A (en) Magnetic materials
CN1073384A (en) Produce the method for rare earth alloy magnet powder
Sherwood et al. Preparation and properties of sintered CoCuFeCe permanent magnets
JPS56156734A (en) Permanent magnet alloy and its manufacture
JPH07110965B2 (en) Method for producing alloy powder for resin-bonded permanent magnet
JPH0568841B2 (en)
JP2564868B2 (en) Permanent magnet manufacturing method
JPS62119903A (en) Manufacture of rare earth permanent magnet
JPS5717109A (en) Manufacture of material for permanent magnet
SU618192A1 (en) Method of making permanent magnets from nickel-samarium alloys
JPH058562B2 (en)
USRE32714E (en) Method of producing high performance permanent magnets
JPS59119703A (en) Manufacture of permanent magnet
RU2024084C1 (en) Process of manufacture of permanent magnet
JPH0796694B2 (en) Method of manufacturing permanent magnet material
Koo Partial substitution of SM with neodymium, praseodymium, and mischmetal in RE 2 TM 17 permanent magnets
JPS5471033A (en) Method of producing cobalt magnet with rare earth element
JPH0132296B2 (en)
JPS5839881B2 (en) Method for manufacturing lanthanide-cobalt permanent magnet alloy
JPS63140063A (en) Manufacture of permanent magnet
JPS5848603A (en) Production of magnet of intermetallic compound
JPS556479A (en) Permanent magnet material
JPS6437811A (en) Voice coil type yoke frame and manufacture thereof
JPS6140738B2 (en)
GB1537427A (en) Permanent magnet material and process for producing the same