JPS57104201A - Permanent magnet made of rare-earth cobalt - Google Patents

Permanent magnet made of rare-earth cobalt

Info

Publication number
JPS57104201A
JPS57104201A JP55179984A JP17998480A JPS57104201A JP S57104201 A JPS57104201 A JP S57104201A JP 55179984 A JP55179984 A JP 55179984A JP 17998480 A JP17998480 A JP 17998480A JP S57104201 A JPS57104201 A JP S57104201A
Authority
JP
Japan
Prior art keywords
permanent magnet
alloy
composition
crystal
rare
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
JP55179984A
Other languages
Japanese (ja)
Other versions
JPS648453B2 (en
Inventor
Tatsuya Shimoda
Itaru Okonogi
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 JP55179984A priority Critical patent/JPS57104201A/en
Publication of JPS57104201A publication Critical patent/JPS57104201A/en
Publication of JPS648453B2 publication Critical patent/JPS648453B2/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
    • H01F1/0555—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together
    • H01F1/0558—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together bonded together

Abstract

PURPOSE:To improve the magnetic characteristics of a permanent magnet by resin-bonding nucleus alloy which consists of Sm, Pr, Co, etc. and also an ingot structure in casting an alloy of a specific composition of R2Co17 crystal (R is the complex of Sm and Pr) is a columnar crystal. CONSTITUTION:A nucleus alloy is resin-bonded and magnetized to produce a permanent magnet, which is an alloy made of Sm, Pr, Co and M (M is at least one out of Mn, Cr, Mo, W, Ni, Ag, Au, Al, Ti, Zr, Hf, V, Nb and Ta) and also mainly composed of an R2Co17 crystal of which the ranges of composition are 0<x<0.5, 0<u<0.3 and 6.5<=z<=9 when represented by Sm1-xPrx(Co1-uMu)z in the composition formula using an atomic weight ratio for its composition as well as of which the macrostructure of ingot in casting is mainly a columnar crystal as shown in the figure.
JP55179984A 1980-12-19 1980-12-19 Permanent magnet made of rare-earth cobalt Granted JPS57104201A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55179984A JPS57104201A (en) 1980-12-19 1980-12-19 Permanent magnet made of rare-earth cobalt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55179984A JPS57104201A (en) 1980-12-19 1980-12-19 Permanent magnet made of rare-earth cobalt

Publications (2)

Publication Number Publication Date
JPS57104201A true JPS57104201A (en) 1982-06-29
JPS648453B2 JPS648453B2 (en) 1989-02-14

Family

ID=16075414

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55179984A Granted JPS57104201A (en) 1980-12-19 1980-12-19 Permanent magnet made of rare-earth cobalt

Country Status (1)

Country Link
JP (1) JPS57104201A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02117236U (en) * 1989-03-08 1990-09-19

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5061699A (en) * 1973-10-03 1975-05-27
JPS5216444A (en) * 1975-07-30 1977-02-07 Matsushita Refrigeration Automatic spot welding process
JPS5521575A (en) * 1978-08-03 1980-02-15 Seiko Epson Corp Permanent magnet material

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5061699A (en) * 1973-10-03 1975-05-27
JPS5216444A (en) * 1975-07-30 1977-02-07 Matsushita Refrigeration Automatic spot welding process
JPS5521575A (en) * 1978-08-03 1980-02-15 Seiko Epson Corp Permanent magnet material

Also Published As

Publication number Publication date
JPS648453B2 (en) 1989-02-14

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