ES301174A1 - Method of manufacture of an annular nucleus for magnetic memories (Machine-translation by Google Translate, not legally binding) - Google Patents

Method of manufacture of an annular nucleus for magnetic memories (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES301174A1
ES301174A1 ES301174A ES301174A ES301174A1 ES 301174 A1 ES301174 A1 ES 301174A1 ES 301174 A ES301174 A ES 301174A ES 301174 A ES301174 A ES 301174A ES 301174 A1 ES301174 A1 ES 301174A1
Authority
ES
Spain
Prior art keywords
temperature
minutes
translation
mol
machine
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
ES301174A
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
Publication of ES301174A1 publication Critical patent/ES301174A1/en
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
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
    • C04B35/2608—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead
    • C04B35/2616—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead containing lithium
    • 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

Landscapes

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

Abstract

Method of manufacturing an annular magnetic core with an external diameter of 2.8 to 4 mm, an internal diameter of at least 0.6 times the external diameter and a height of 1 to 2 mm to be used as a circuit breaker element, to control memories of nuclei, characterized in that a mixture of 14 to 15 mol% of Li2O 6 to 7 mol% NiO, and 77 a 81 mol% de Fe2O3 mixture in which the oxides can be replaced individually by compounds capable of transforming into these oxides during heating, is pre-sintered at a temperature between 600 and 750º C, the product thus obtained is refined and then granulated and compressed in the desired form, the body The tablet is heated to a temperature of 1370º C to 1400º C within a maximum of 16 minutes, said temperature being maintained for 5 to 10 minutes, and the reaction product is subsequently cooled to a temperature of 940 to 960º C within a time period of 70 minutes. to 90 minutes and finally it is tempered by direct contact with air at room temperature. (Machine-translation by Google Translate, not legally binding)
ES301174A 1963-06-20 1964-06-18 Method of manufacture of an annular nucleus for magnetic memories (Machine-translation by Google Translate, not legally binding) Expired ES301174A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL294371 1963-06-20

Publications (1)

Publication Number Publication Date
ES301174A1 true ES301174A1 (en) 1962-12-16

Family

ID=19754802

Family Applications (1)

Application Number Title Priority Date Filing Date
ES301174A Expired ES301174A1 (en) 1963-06-20 1964-06-18 Method of manufacture of an annular nucleus for magnetic memories (Machine-translation by Google Translate, not legally binding)

Country Status (11)

Country Link
US (1) US3376227A (en)
AT (1) AT247036B (en)
BE (1) BE649467A (en)
CH (1) CH455957A (en)
DE (1) DE1471347A1 (en)
DK (1) DK116805B (en)
ES (1) ES301174A1 (en)
FR (1) FR1399248A (en)
GB (1) GB1003533A (en)
NL (1) NL294371A (en)
OA (1) OA00766A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS528517B1 (en) * 1966-12-28 1977-03-09
US3860524A (en) * 1969-12-29 1975-01-14 Spang Ind Inc High permeability manganese-zinc ferrites

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3038860A (en) * 1956-12-20 1962-06-12 Francis E Vinal Lithium nickel ferrites
NL273242A (en) * 1962-01-05

Also Published As

Publication number Publication date
FR1399248A (en) 1965-05-14
BE649467A (en)
DE1471347A1 (en) 1969-02-27
NL294371A (en)
US3376227A (en) 1968-04-02
AT247036B (en) 1966-05-25
GB1003533A (en) 1965-09-02
DK116805B (en) 1970-02-16
OA00766A (en) 1967-11-15
CH455957A (en) 1968-05-15

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