FR1030945A - Magnetic compositions and their manufacturing process - Google Patents

Magnetic compositions and their manufacturing process

Info

Publication number
FR1030945A
FR1030945A FR1030945DA FR1030945A FR 1030945 A FR1030945 A FR 1030945A FR 1030945D A FR1030945D A FR 1030945DA FR 1030945 A FR1030945 A FR 1030945A
Authority
FR
France
Prior art keywords
manufacturing process
magnetic compositions
compositions
magnetic
manufacturing
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
Other languages
French (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.)
Crowley-Republic Steel Corp
Original Assignee
Crowley-Republic Steel Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22511549&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FR1030945(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Crowley-Republic Steel Corp filed Critical Crowley-Republic Steel Corp
Application granted granted Critical
Publication of FR1030945A publication Critical patent/FR1030945A/en
Expired 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
    • H01F1/0302—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity characterised by unspecified or heterogeneous hardness or specially adapted for magnetic hardness transitions
    • H01F1/0311—Compounds
    • H01F1/0313—Oxidic compounds
    • H01F1/0315—Ferrites
    • 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
    • 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
    • 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
    • H01F1/12—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 soft-magnetic materials
    • H01F1/33—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 soft-magnetic materials mixtures of metallic and non-metallic particles; metallic particles having oxide skin

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Magnetic Ceramics (AREA)
FR1030945D 1950-02-18 1951-01-12 Magnetic compositions and their manufacturing process Expired FR1030945A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US145085A US2575099A (en) 1950-02-18 1950-02-18 Magnetic compositions

Publications (1)

Publication Number Publication Date
FR1030945A true FR1030945A (en) 1953-06-18

Family

ID=22511549

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1030945D Expired FR1030945A (en) 1950-02-18 1951-01-12 Magnetic compositions and their manufacturing process

Country Status (5)

Country Link
US (1) US2575099A (en)
BE (1) BE500682A (en)
FR (1) FR1030945A (en)
GB (1) GB674719A (en)
NL (1) NL90806C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1025536B (en) * 1955-05-31 1958-03-06 Siemens Ag Process for the production of a soft magnetic sintered body with high permeability and small eddy current losses
DE1257656B (en) * 1964-09-16 1967-12-28 Philips Patentverwaltung Use of a gas mixture generated from natural gas or town gas as a protective gas in the sintering of manganese-containing ferrites
DE1696392B1 (en) * 1963-05-30 1969-10-02 Westinghouse Electric Corp Permanent magnet material with magnetoplumbite structure and process for its production

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734034A (en) * 1956-02-07 Magnetic compositions
US2736708A (en) * 1951-06-08 1956-02-28 Henry L Crowley & Company Inc Magnetic compositions
US2703787A (en) * 1952-11-18 1955-03-08 Henry L Crowley & Company Inc Method for preparing magnetic compositions
US2705701A (en) * 1952-11-28 1955-04-05 Henry L Crowley & Company Inc Method for preparing magnetic compositions
US2766211A (en) * 1953-05-06 1956-10-09 Ncr Co Process for making magnetic powder
US2925388A (en) * 1953-07-16 1960-02-16 Rca Corp Ferrospinel compositions
US2892985A (en) * 1954-07-20 1959-06-30 Zenith Radio Corp High frequency transformer assembly
FR1143063A (en) * 1954-10-18 1957-09-26 Ibm Composition and manufacturing process of magnetic elements
US3066233A (en) * 1957-07-25 1962-11-27 Clevite Corp Ferrite transducers
US3031406A (en) * 1958-01-07 1962-04-24 Rca Corp Magnetic cores
US3185986A (en) * 1959-03-05 1965-05-25 James R Mccaughna Microwave absorber and method of manufacture
GB867060A (en) * 1959-05-22 1961-05-03 Wipac Dev Ltd Improvements in and relating to transformers
US3156650A (en) * 1960-11-17 1964-11-10 Gen Electric Oxide coated iron-cobalt alloy magnetic material
US3237945A (en) * 1960-12-29 1966-03-01 Brunswick Corp Bowling pin
US3502584A (en) * 1966-03-31 1970-03-24 Peter A Denes Magnetic composite materials
US3438885A (en) * 1967-08-02 1969-04-15 Northern Electric Co Method of making ferrimagnetic films by cathodic sputtering
US10328912B2 (en) 2016-07-28 2019-06-25 Deere & Company Pneumatic trailer brake circuit with breakaway detection and method thereof
CN109455799A (en) * 2017-09-06 2019-03-12 中科天龙（厦门）环保股份有限公司 A kind of New Magnetic Field Controlled kind and preparation method thereof for magnetic separation technique

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1878589A (en) * 1930-01-22 1932-09-20 Marris George Christopher Manufacture of nickel iron alloys
US1997193A (en) * 1930-12-25 1935-04-09 Mitsubishi Electric Corp Permanent magnet and method of manufacturing same
US2179810A (en) * 1935-09-18 1939-11-14 Ig Farbenindustrie Ag Finely divided magnetic substance

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1025536B (en) * 1955-05-31 1958-03-06 Siemens Ag Process for the production of a soft magnetic sintered body with high permeability and small eddy current losses
DE1696392B1 (en) * 1963-05-30 1969-10-02 Westinghouse Electric Corp Permanent magnet material with magnetoplumbite structure and process for its production
DE1257656B (en) * 1964-09-16 1967-12-28 Philips Patentverwaltung Use of a gas mixture generated from natural gas or town gas as a protective gas in the sintering of manganese-containing ferrites

Also Published As

Publication number Publication date
NL90806C (en)
BE500682A (en)
GB674719A (en) 1952-06-25
US2575099A (en) 1951-11-13

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