ES430342A1 - Radially anisotropic magnet body - Google Patents

Radially anisotropic magnet body

Info

Publication number
ES430342A1
ES430342A1 ES430342A ES430342A ES430342A1 ES 430342 A1 ES430342 A1 ES 430342A1 ES 430342 A ES430342 A ES 430342A ES 430342 A ES430342 A ES 430342A ES 430342 A1 ES430342 A1 ES 430342A1
Authority
ES
Spain
Prior art keywords
radially anisotropic
sintered
magnet body
anisotropic magnet
molded
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
ES430342A
Other languages
Spanish (es)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES430342A1 publication Critical patent/ES430342A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
    • C04B35/2683—Other ferrites containing alkaline earth metals or lead
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0205—Magnetic circuits with PM in general
    • H01F7/021—Construction of PM

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Magnetic Ceramics (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)

Abstract

A method of making a permanently magnetized, radially anisotropic, sintered and curved body, consisting essentially of a ferrite of the formula Me0.6Fe2O3, in which Me is at least one of the barium, strontium and lead metals, the body having a closed annular shape with an inner diameter that is at least 0.8 times the outer diameter, a method in which a ferrite powder is shaped into the shape of a body molded in a radial magnetic field and then sintered, characterized by that the density of the molded body material is first increased by hydrostatic compression. (Machine-translation by Google Translate, not legally binding)
ES430342A 1973-09-26 1974-09-24 Radially anisotropic magnet body Expired ES430342A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7313231A NL7313231A (en) 1973-09-26 1973-09-26 RADIAL ANISOTROPIC MAGNETIC BODY.

Publications (1)

Publication Number Publication Date
ES430342A1 true ES430342A1 (en) 1977-02-16

Family

ID=19819676

Family Applications (1)

Application Number Title Priority Date Filing Date
ES430342A Expired ES430342A1 (en) 1973-09-26 1974-09-24 Radially anisotropic magnet body

Country Status (8)

Country Link
JP (1) JPS5542484B2 (en)
BR (1) BR7407897D0 (en)
DE (1) DE2443830C3 (en)
ES (1) ES430342A1 (en)
FR (1) FR2245060B1 (en)
GB (1) GB1424659A (en)
IT (1) IT1019366B (en)
NL (1) NL7313231A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2446955A1 (en) * 1979-01-17 1980-08-14 Aerospatiale Magnetic suspension system for rotating bodies - comprises magnetic discs constructed from radial sectors inserted between ferromagnetic skirts
CS213709B1 (en) * 1979-03-13 1982-04-09 Vaclav Landa Anizotropous permanent magnets
JPS57121148U (en) * 1981-01-20 1982-07-28
KR970001257B1 (en) * 1992-03-18 1997-02-04 스미토모 도쿠슈 긴조쿠 가부시키기가이샤 Radial anisotropic cylinder type ferrite magnets and their manufacturing method and motors

Also Published As

Publication number Publication date
DE2443830B2 (en) 1977-08-18
FR2245060A1 (en) 1975-04-18
JPS5542484B2 (en) 1980-10-31
IT1019366B (en) 1977-11-10
BR7407897D0 (en) 1975-09-16
GB1424659A (en) 1976-02-11
DE2443830A1 (en) 1975-04-03
DE2443830C3 (en) 1979-07-05
NL7313231A (en) 1975-04-01
FR2245060B1 (en) 1978-07-13
JPS5059798A (en) 1975-05-23

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19911005