ES249779A1 - Un método de fabricar un nucleo magnético anular - Google Patents

Un método de fabricar un nucleo magnético anular

Info

Publication number
ES249779A1
ES249779A1 ES0249779A ES249779A ES249779A1 ES 249779 A1 ES249779 A1 ES 249779A1 ES 0249779 A ES0249779 A ES 0249779A ES 249779 A ES249779 A ES 249779A ES 249779 A1 ES249779 A1 ES 249779A1
Authority
ES
Spain
Prior art keywords
temperature
manufacturing
oxides
ring
ambient temperature
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
ES0249779A
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.)
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 ES249779A1 publication Critical patent/ES249779A1/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder
    • 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
    • C04B35/265—Compositions containing one or more ferrites of the group comprising manganese or zinc and one or more ferrites of the group comprising nickel, copper or cobalt
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/08—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
    • H01F10/10—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition
    • H01F10/18—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being compounds
    • H01F10/20—Ferrites

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Soft Magnetic Materials (AREA)
  • Powder Metallurgy (AREA)

Abstract

Método de fabricar de un núcleo magnético anular con un diámetro exterior no mayor de 4mmadaptado particularmente para ser usado como un así llamado "núcleo de memoria" en computadores electrónicos y que consiste de un material ferromagnético sobre la base de óxido de hierromanganesocobre y zincpor prefusión a una temperatura comprendida entre 500ºC y 1000ºCde una mezcla con una composición de 30 a 55mol.% de FeO3; 30 a 65mol.% de MNO; o a 15%mol.% de CuO; 0 a 15mol.% de ZnOen que los óxidos pueden estar reemplazados por compuestos que proveen estos óxidos al ser calentadospor refinación del producto de reacción así obtenidomoldeo del polvo con o sin la ayuda de un ligantepara llevarlo a la forma de un anillo del tamaño deseado y por fusión del anillo en una atmósfera que contiene oxígeno calentándolo a una temperatura comprendida entre 1150ºC y 1350ºCcaracterizado por el hecho de que el cuerpo fusionado es enfriado de modo tal que por lo menos la zona de temperaturas entre 700ºC y la temperatura ambiente y como máximo la zona de temperaturas entre 1050ºC y la temperatura ambientees atravesada tan rápidamente como sea posible.
ES0249779A 1958-06-03 1959-06-01 Un método de fabricar un nucleo magnético anular Expired ES249779A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL228379 1958-06-03

Publications (1)

Publication Number Publication Date
ES249779A1 true ES249779A1 (es) 1959-10-16

Family

ID=19751232

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0249779A Expired ES249779A1 (es) 1958-06-03 1959-06-01 Un método de fabricar un nucleo magnético anular

Country Status (7)

Country Link
US (1) US3188290A (es)
CH (1) CH398824A (es)
ES (1) ES249779A1 (es)
FR (1) FR1226220A (es)
GB (1) GB875600A (es)
NL (1) NL99145C (es)
OA (1) OA00819A (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4832870B1 (es) * 1963-02-12 1973-10-09
US3424685A (en) * 1965-03-23 1969-01-28 Itt High permeability ferromagnetic ferrite materials
JP3108804B2 (ja) * 1998-08-19 2000-11-13 ミネベア株式会社 Ｍｎ−Ｚｎフェライト
CN103996521B (zh) * 2014-05-11 2016-05-25 沈阳中北通磁科技股份有限公司 一种钕铁硼稀土永磁体的真空预烧结方法和设备

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2549089A (en) * 1948-12-15 1951-04-17 Rca Corp Mixed ferrite compositions, including lithium ferrite
US2723238A (en) * 1952-08-19 1955-11-08 Rca Corp Manganese zinc ferrospinel compositions, including copper oxide
FR1084180A (fr) * 1953-04-01 1955-01-17 Int Standard Electric Corp Matériaux magnétiques
NL82276C (es) * 1953-12-22
DE1108605B (de) * 1954-10-19 1961-06-08 Standard Elektrik Lorenz Ag Verfahren zur Herstellung von Mangan-Zink-Ferriten
US2818387A (en) * 1954-10-28 1957-12-31 Philips Corp Square loop ferromagnetic material
FR1120702A (fr) * 1955-01-28 1956-07-11 Csf Ferrites mixtes au manganèse et au zinc et procédé de fabrication
BE548112A (es) * 1955-07-01
US2950251A (en) * 1955-09-19 1960-08-23 Rca Corp Magnetic materials having rectangular hysteresis characteristics
NL292510A (es) * 1955-10-04
NL111145C (es) * 1956-09-17
US3028336A (en) * 1957-09-25 1962-04-03 Ibm Cadmium manganese ferrospinel composition
US2982732A (en) * 1957-12-30 1961-05-02 Ibm Ferrite composition containing titanium and nickel

Also Published As

Publication number Publication date
FR1226220A (fr) 1960-07-08
OA00819A (fr) 1967-11-15
NL99145C (es)
CH398824A (de) 1966-03-15
GB875600A (en) 1961-08-23
US3188290A (en) 1965-06-08

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