JPS57118604A - Rare-earth metal-cobalt permanent magnet - Google Patents

Rare-earth metal-cobalt permanent magnet

Info

Publication number
JPS57118604A
JPS57118604A JP56004878A JP487881A JPS57118604A JP S57118604 A JPS57118604 A JP S57118604A JP 56004878 A JP56004878 A JP 56004878A JP 487881 A JP487881 A JP 487881A JP S57118604 A JPS57118604 A JP S57118604A
Authority
JP
Japan
Prior art keywords
ingot
alloy
rare
permanent magnet
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.)
Granted
Application number
JP56004878A
Other languages
Japanese (ja)
Other versions
JPS6111447B2 (en
Inventor
Tsuyoshi Kitabayashi
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 JP56004878A priority Critical patent/JPS57118604A/en
Publication of JPS57118604A publication Critical patent/JPS57118604A/en
Publication of JPS6111447B2 publication Critical patent/JPS6111447B2/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

Landscapes

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

Abstract

PURPOSE:To promote columnar crystallization of alloy ingot, by adding such special elements as S, Se, Te, Ce, Pb, Cd, Bi, and Si to Sm-Co-Fe-Zr alloy. CONSTITUTION:An ingot is made by casting the alloy which is composed of Sm, Co, Cu, Fe, Zr, and M (M: more than at least one kind of S, Se, Te, Pb, Cd, and Bi), and has main ingredients of Sm2Co17 type crystallization (compound range: 0<U<0.2, 0<V<0.5, 0<W<0.1, 0<X<0.1, 6.5<=Z<=9) when expressed as Sm(Co1-u-w-xCuuFevZrwMx)z in a compound equation with atomic ratio. Adding the elements M results in the increase of columnar structure. The ingot is made a magnet by heat-treating, grinding, mixing with binder, forming in a magnetic field, and hardening the binder. This makes a magnet of high performance obtainable.
JP56004878A 1981-01-16 1981-01-16 Rare-earth metal-cobalt permanent magnet Granted JPS57118604A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56004878A JPS57118604A (en) 1981-01-16 1981-01-16 Rare-earth metal-cobalt permanent magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56004878A JPS57118604A (en) 1981-01-16 1981-01-16 Rare-earth metal-cobalt permanent magnet

Publications (2)

Publication Number Publication Date
JPS57118604A true JPS57118604A (en) 1982-07-23
JPS6111447B2 JPS6111447B2 (en) 1986-04-03

Family

ID=11595921

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56004878A Granted JPS57118604A (en) 1981-01-16 1981-01-16 Rare-earth metal-cobalt permanent magnet

Country Status (1)

Country Link
JP (1) JPS57118604A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5183517A (en) * 1988-12-08 1993-02-02 Fuji Electrochemical Co., Ltd. Permanent magnet composition

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63268884A (en) * 1987-04-24 1988-11-07 永井　五一郎 Card key device for automobile

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5183517A (en) * 1988-12-08 1993-02-02 Fuji Electrochemical Co., Ltd. Permanent magnet composition

Also Published As

Publication number Publication date
JPS6111447B2 (en) 1986-04-03

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