GB1457145A - Permanent magnets - Google Patents

Permanent magnets

Info

Publication number
GB1457145A
GB1457145A GB4873374A GB4873374A GB1457145A GB 1457145 A GB1457145 A GB 1457145A GB 4873374 A GB4873374 A GB 4873374A GB 4873374 A GB4873374 A GB 4873374A GB 1457145 A GB1457145 A GB 1457145A
Authority
GB
United Kingdom
Prior art keywords
cooling
sintering
nov
produced
permanent magnets
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.)
Expired
Application number
GB4873374A
Other languages
English (en)
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.)
Proterial Ltd
Original Assignee
Hitachi Metals 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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Publication of GB1457145A publication Critical patent/GB1457145A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/07—Alloys based on nickel or cobalt based on cobalt
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/0433—Nickel- or cobalt-based alloys
    • C22C1/0441—Alloys based on intermetallic compounds of the type rare earth - Co, Ni
    • 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
    • H01F1/0557—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together sintered

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Powder Metallurgy (AREA)
GB4873374A 1973-11-12 1974-11-11 Permanent magnets Expired GB1457145A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12625073A JPS5724058B2 (US07534539-20090519-C00280.png) 1973-11-12 1973-11-12

Publications (1)

Publication Number Publication Date
GB1457145A true GB1457145A (en) 1976-12-01

Family

ID=14930509

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4873374A Expired GB1457145A (en) 1973-11-12 1974-11-11 Permanent magnets

Country Status (8)

Country Link
US (1) US3997371A (US07534539-20090519-C00280.png)
JP (1) JPS5724058B2 (US07534539-20090519-C00280.png)
CA (1) CA1011134A (US07534539-20090519-C00280.png)
CH (1) CH617529A5 (US07534539-20090519-C00280.png)
DE (1) DE2452905B2 (US07534539-20090519-C00280.png)
FR (1) FR2251086B1 (US07534539-20090519-C00280.png)
GB (1) GB1457145A (US07534539-20090519-C00280.png)
NL (1) NL7414612A (US07534539-20090519-C00280.png)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH599661A5 (US07534539-20090519-C00280.png) * 1975-01-14 1978-05-31 Bbc Brown Boveri & Cie
CH603802A5 (US07534539-20090519-C00280.png) * 1975-12-02 1978-08-31 Bbc Brown Boveri & Cie
DE2705384C3 (de) * 1976-02-10 1986-03-27 TDK Corporation, Tokio/Tokyo Dauermagnet-Legierung und Verfahren zur Wärmebehandlung gesinterter Dauermagnete
US4172717A (en) * 1978-04-04 1979-10-30 Hitachi Metals, Ltd. Permanent magnet alloy
US4224067A (en) * 1979-04-27 1980-09-23 The United States Of America As Represented By The Secretary Of The Army Permanent magnet materials
DE3040342C2 (de) * 1980-10-25 1982-08-12 Th. Goldschmidt Ag, 4300 Essen Zur Herstellung eines Dauermagneten geeignete Legierung
JPS5935648A (ja) * 1982-08-24 1984-02-27 Nippon Telegr & Teleph Corp <Ntt> 永久磁石合金
US4851058A (en) * 1982-09-03 1989-07-25 General Motors Corporation High energy product rare earth-iron magnet alloys
DE3379131D1 (en) * 1982-09-03 1989-03-09 Gen Motors Corp Re-tm-b alloys, method for their production and permanent magnets containing such alloys
JPS59226135A (ja) * 1983-06-06 1984-12-19 Nippon Telegr & Teleph Corp <Ntt> 永久磁石合金の製造方法
US4620872A (en) * 1984-10-18 1986-11-04 Mitsubishi Kinzoku Kabushiki Kaisha Composite target material and process for producing the same
US5382303A (en) * 1992-04-13 1995-01-17 Sps Technologies, Inc. Permanent magnets and methods for their fabrication
US20090121711A1 (en) * 2007-08-01 2009-05-14 Baker Hughes Incorporated Thermally stabilized magnets for use downhole
CN103310969A (zh) * 2012-03-08 2013-09-18 潘树明 高使用温度永磁体制备工艺
CN103065788B (zh) * 2012-12-26 2015-05-27 宁波韵升股份有限公司 一种制备烧结钐钴磁体的方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6608335A (US07534539-20090519-C00280.png) * 1966-06-16 1967-12-18
US3424578A (en) * 1967-06-05 1969-01-28 Us Air Force Method of producing permanent magnets of rare earth metals containing co,or mixtures of co,fe and mn
US3655463A (en) * 1970-04-30 1972-04-11 Gen Electric Sintered cobalt-rare earth intermetallic process using solid sintering additive
US3684591A (en) * 1970-08-24 1972-08-15 Gen Electric Sintered cobalt-rare earth intermetallic product including samarium and cerium and permanent magnets produced therefrom
US3682714A (en) * 1970-08-24 1972-08-08 Gen Electric Sintered cobalt-rare earth intermetallic product and permanent magnets produced therefrom
US3682716A (en) * 1970-08-24 1972-08-08 Gen Electric Sintered intermetallic product of cobalt,samarium and cerium mischmetal and permanent magnets produced therefrom
CH575646A5 (US07534539-20090519-C00280.png) * 1972-01-20 1976-05-14 Bbc Brown Boveri & Cie
US3901741A (en) * 1973-08-23 1975-08-26 Gen Electric Permanent magnets of cobalt, samarium, gadolinium alloy

Also Published As

Publication number Publication date
CH617529A5 (US07534539-20090519-C00280.png) 1980-05-30
DE2452905A1 (de) 1975-05-15
JPS5075919A (US07534539-20090519-C00280.png) 1975-06-21
JPS5724058B2 (US07534539-20090519-C00280.png) 1982-05-21
FR2251086B1 (US07534539-20090519-C00280.png) 1982-01-08
CA1011134A (en) 1977-05-31
FR2251086A1 (US07534539-20090519-C00280.png) 1975-06-06
NL7414612A (nl) 1975-05-14
DE2452905B2 (de) 1976-09-30
US3997371A (en) 1976-12-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee