GB445614A - Improvements in magnetic dust cores - Google Patents

Improvements in magnetic dust cores

Info

Publication number
GB445614A
GB445614A GB28564/34A GB2856434A GB445614A GB 445614 A GB445614 A GB 445614A GB 28564/34 A GB28564/34 A GB 28564/34A GB 2856434 A GB2856434 A GB 2856434A GB 445614 A GB445614 A GB 445614A
Authority
GB
United Kingdom
Prior art keywords
per cent
less
cores
silicon
powdered
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
GB28564/34A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB445614A publication Critical patent/GB445614A/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
    • H01F1/147—Alloys characterised by their composition

Landscapes

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

Abstract

The electric resistivity of magnetic dust cores of iron alloys containing 0,5-16 per cent of silicon and 0,5-12 per cent of silicon is increased by the addition of one or more of the following: 2-25 per cent of manganese, less than 25 per cent of tin, 2-20 per cent of vanadium, less than 15 per cent of cobalt, 2-10 per cent of chromium, less than 8 per cent each of nickel, tungsten, antimony, and tantalum, less than 5 per cent each of molybdenum, arsenic, copper, phosphorus, sulphur, and silver, 2-5 per cent of titanium, less than 3 per cent each of zinc, magnesium, beryllium, boron, cadmium, bismuth, lead, and zirconium, the total amount of such additions being less than 40 per cent. The alloy is powdered and either oxidized on the surface by heating to less than 800 DEG C. or is mixed with insulating material with or without the addition of powdered iron, permalloy, or other magnetic material and the mixture pressed in moulds and heated; or the powder may be pasted to or otherwise incorporated with paper or fabric and made into cores.
GB28564/34A 1934-04-21 1934-10-05 Improvements in magnetic dust cores Expired GB445614A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP445614X 1934-04-21

Publications (1)

Publication Number Publication Date
GB445614A true GB445614A (en) 1936-04-06

Family

ID=12694898

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28564/34A Expired GB445614A (en) 1934-04-21 1934-10-05 Improvements in magnetic dust cores

Country Status (1)

Country Link
GB (1) GB445614A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2873225A (en) * 1957-05-20 1959-02-10 Adams Edmond Magnetic flake core
DE1212733B (en) * 1961-09-23 1966-03-17 Knapsack Ag Ferrosilicon alloy
GB2159835A (en) * 1984-06-05 1985-12-11 Cabot Corp Silicon-rich alloy coatings

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2873225A (en) * 1957-05-20 1959-02-10 Adams Edmond Magnetic flake core
DE1212733B (en) * 1961-09-23 1966-03-17 Knapsack Ag Ferrosilicon alloy
GB2159835A (en) * 1984-06-05 1985-12-11 Cabot Corp Silicon-rich alloy coatings
GB2159835B (en) * 1984-06-05 1989-06-01 Cabot Corp Silicon-rich alloy coatings

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