FR2399106A1 - Procede de fabrication d'un aimant permanent anisotrope et oxydique - Google Patents

Procede de fabrication d'un aimant permanent anisotrope et oxydique

Info

Publication number
FR2399106A1
FR2399106A1 FR7821471A FR7821471A FR2399106A1 FR 2399106 A1 FR2399106 A1 FR 2399106A1 FR 7821471 A FR7821471 A FR 7821471A FR 7821471 A FR7821471 A FR 7821471A FR 2399106 A1 FR2399106 A1 FR 2399106A1
Authority
FR
France
Prior art keywords
carried out
permanent magnet
sintering
under
anisotropic
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
FR7821471A
Other languages
English (en)
Other versions
FR2399106B3 (fr
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.)
Fried Krupp AG
Original Assignee
Fried Krupp AG
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 Fried Krupp AG filed Critical Fried Krupp AG
Publication of FR2399106A1 publication Critical patent/FR2399106A1/fr
Application granted granted Critical
Publication of FR2399106B3 publication Critical patent/FR2399106B3/fr
Granted 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

Procédé caractérisé par les mesures suivantes : a. Dans l'aimant permanent le rapport entre les masses atomiques du métal et du fer est supérieur à 1/12 et inférieur ou égal à 1/22; b. Le mélange des matières premières est soumis pendant une période variant entre 0,1 et 10 heures. et sous l'effet d'une température entre 900 et 1500 degrés C, à un frittage réactif sous atmosphère à teneur d'oxygène; c. La mouture du produit réactif et la constitution de la pièce moulée par compression de la mouture sont effectuées sous l'influence simultanée d'un champ magnétique; et d. Le frittage final de la pièce moulée est réalisé de manière que le chauffage, le frittage et, le cas échéant, le refroidissement, sont effectués conformément à la méthode précisée sous
FR7821471A 1977-07-26 1978-07-20 Procede de fabrication d'un aimant permanent anisotrope et oxydique Granted FR2399106A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772733557 DE2733557A1 (de) 1977-07-26 1977-07-26 Verfahren zur herstellung eines anisotropen, oxidischen dauermagneten

Publications (2)

Publication Number Publication Date
FR2399106A1 true FR2399106A1 (fr) 1979-02-23
FR2399106B3 FR2399106B3 (fr) 1981-04-17

Family

ID=6014808

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7821471A Granted FR2399106A1 (fr) 1977-07-26 1978-07-20 Procede de fabrication d'un aimant permanent anisotrope et oxydique

Country Status (4)

Country Link
DE (1) DE2733557A1 (fr)
FR (1) FR2399106A1 (fr)
GB (1) GB2001949B (fr)
NL (1) NL7807537A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2483120A1 (fr) * 1980-05-23 1981-11-27 Philips Nv

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09260124A (ja) * 1996-03-26 1997-10-03 Sumitomo Special Metals Co Ltd フェライト磁石及びその製造方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2483120A1 (fr) * 1980-05-23 1981-11-27 Philips Nv

Also Published As

Publication number Publication date
GB2001949B (en) 1982-02-10
GB2001949A (en) 1979-02-14
FR2399106B3 (fr) 1981-04-17
NL7807537A (nl) 1979-01-30
DE2733557A1 (de) 1979-02-01

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Legal Events

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ST Notification of lapse