GB372837A - Manufacture of magnetic dust cores - Google Patents

Manufacture of magnetic dust cores

Info

Publication number
GB372837A
GB372837A GB524231A GB524231A GB372837A GB 372837 A GB372837 A GB 372837A GB 524231 A GB524231 A GB 524231A GB 524231 A GB524231 A GB 524231A GB 372837 A GB372837 A GB 372837A
Authority
GB
United Kingdom
Prior art keywords
manufacture
metal
annealing
dust cores
magnetic dust
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
GB524231A
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Priority to GB524231A priority Critical patent/GB372837A/en
Publication of GB372837A publication Critical patent/GB372837A/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
    • H01F1/12—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
    • H01F1/14—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 metals or alloys
    • H01F1/20—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 metals or alloys in the form of particles, e.g. powder
    • H01F1/22—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 metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
    • H01F1/24—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 metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

In making magnetic cores by annealing powdered metal and compressing it the metal, before annealing, is mixed with from 0,5 to 1 per cent of heavy oil to prevent sintering. Examples are given in which the annealing takes place at temperatures of from 1300 to 1625 DEG F. for a period of one and a half hours. The metal may be a nickel iron alloy containing 81 per cent of nickel.
GB524231A 1931-02-19 1931-02-19 Manufacture of magnetic dust cores Expired GB372837A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB524231A GB372837A (en) 1931-02-19 1931-02-19 Manufacture of magnetic dust cores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB524231A GB372837A (en) 1931-02-19 1931-02-19 Manufacture of magnetic dust cores

Publications (1)

Publication Number Publication Date
GB372837A true GB372837A (en) 1932-05-19

Family

ID=9792379

Family Applications (1)

Application Number Title Priority Date Filing Date
GB524231A Expired GB372837A (en) 1931-02-19 1931-02-19 Manufacture of magnetic dust cores

Country Status (1)

Country Link
GB (1) GB372837A (en)

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