ES2045285T3 - Procedimiento para la fabricacion de un polvo magnetico de hexaferrita de estroncio. - Google Patents

Procedimiento para la fabricacion de un polvo magnetico de hexaferrita de estroncio.

Info

Publication number
ES2045285T3
ES2045285T3 ES89113147T ES89113147T ES2045285T3 ES 2045285 T3 ES2045285 T3 ES 2045285T3 ES 89113147 T ES89113147 T ES 89113147T ES 89113147 T ES89113147 T ES 89113147T ES 2045285 T3 ES2045285 T3 ES 2045285T3
Authority
ES
Spain
Prior art keywords
solution
strontium
magnetic powder
strontium hexaferrite
procedure
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 - Lifetime
Application number
ES89113147T
Other languages
English (en)
Inventor
Jean-Claude Moisand
Joseph Cumer
Paul Poix
Jean-Claude Bernier
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.)
Cga Hbs
Compagnie Generale dAutomatisme CGA HBS SA
Original Assignee
Cga Hbs
Compagnie Generale dAutomatisme CGA HBS SA
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 Cga Hbs, Compagnie Generale dAutomatisme CGA HBS SA filed Critical Cga Hbs
Application granted granted Critical
Publication of ES2045285T3 publication Critical patent/ES2045285T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H01F1/10—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 non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70626—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances
    • G11B5/70642—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides
    • G11B5/70678—Ferrites
    • 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
    • H01F1/10—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 non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
    • H01F1/11—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 non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Compounds Of Iron (AREA)

Abstract

PROCESO DE FABRICACION DE UN POLVO MAGNETICO DE HEXAFERRITA DE ESTRONCIO DE FORMULA GENERAL XSRO, 6FE O , EN LA CUAL X ESTA COMPRENDIDO ENTRE 1,3 Y 1,4 POR REACCION DE UNA SOLUCION ACUOSA DE CLORURO FERRICO SOBRE HIERRO DIVIDIDO Y UNA SUSPENSION DE CARBONATO DE ESTRONCIO EN UNA SOLUCION DE CARBONATO DE POTASIO. SE PONE EN PRESENCIA DE CALOR MEDIANTE AGITACION UNA SOLUCION DE CLORURO FERRICO Y UNA SUSPENSION DE CARBONATO DE ESTRONCIO EN UNA SOLUCION DE CARBONATO ALCALINO, SE DISUELVE EL HIERRO DIVIDIDO EN LA MEZCLA OBTENIDA, SE MANTIENE LA SOLUCION OBTENIDA EN LA PROXIMIDAD DE LA EBULLICION HASTA LA PRECIPITACION COMPLETA DE LA HEXAFERRITA DE ESTRONCIO, SE FILTRA EN CALIENTE LA SOLUCION, SE LAVA EL PRECIPITADO RECOGIDO, Y LE SOMETE A UNAS OPERACIONES DE SECADO, DE MOLIDO Y DE TRATAMIENTO TERMICO DURANTE VARIAS HORAS A APROXIMADAMENTE 850 (GRADOS) C.
ES89113147T 1988-07-22 1989-07-18 Procedimiento para la fabricacion de un polvo magnetico de hexaferrita de estroncio. Expired - Lifetime ES2045285T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8809968A FR2634582B1 (fr) 1988-07-22 1988-07-22 Procede de fabrication d'une poudre magnetique d'hexaferrite de strontium

Publications (1)

Publication Number Publication Date
ES2045285T3 true ES2045285T3 (es) 1994-01-16

Family

ID=9368704

Family Applications (1)

Application Number Title Priority Date Filing Date
ES89113147T Expired - Lifetime ES2045285T3 (es) 1988-07-22 1989-07-18 Procedimiento para la fabricacion de un polvo magnetico de hexaferrita de estroncio.

Country Status (8)

Country Link
EP (1) EP0351775B1 (es)
JP (1) JPH0274008A (es)
KR (1) KR970011186B1 (es)
AR (1) AR242682A1 (es)
AT (1) ATE86782T1 (es)
DE (1) DE68905251T2 (es)
ES (1) ES2045285T3 (es)
FR (1) FR2634582B1 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007026503B4 (de) 2007-06-05 2009-08-27 Bourns, Inc., Riverside Verfahren zur Herstellung einer Magnetschicht auf einem Substrat und druckbarer magnetisierbarer Lack
RU2614171C1 (ru) * 2015-12-29 2017-03-23 Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский технологический университет "МИСиС" Способ измельчения смеси карбоната стронция и оксида железа в производстве гексаферритов стронция

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3810973A (en) * 1973-01-12 1974-05-14 Gen Electric Method of preparing ferrites
DE3417793A1 (de) * 1984-05-14 1985-11-14 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung feinteiliger, nadelfoermiger und hochkoerzitiver hexagonaler ferrite sowie ihre verwendung zur herstellung magnetischer aufzeichnungstraeger und plastoferrite

Also Published As

Publication number Publication date
ATE86782T1 (de) 1993-03-15
KR970011186B1 (ko) 1997-07-08
FR2634582B1 (fr) 1990-09-07
DE68905251D1 (de) 1993-04-15
JPH0274008A (ja) 1990-03-14
DE68905251T2 (de) 1993-06-17
KR900002357A (ko) 1990-02-28
AR242682A1 (es) 1993-04-30
EP0351775B1 (fr) 1993-03-10
EP0351775A1 (fr) 1990-01-24
FR2634582A1 (fr) 1990-01-26

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