GB399318A - Improvements in or relating to magnets - Google Patents

Improvements in or relating to magnets

Info

Publication number
GB399318A
GB399318A GB28237/32A GB2823732A GB399318A GB 399318 A GB399318 A GB 399318A GB 28237/32 A GB28237/32 A GB 28237/32A GB 2823732 A GB2823732 A GB 2823732A GB 399318 A GB399318 A GB 399318A
Authority
GB
United Kingdom
Prior art keywords
per cent
magnets
relating
sintering
electromagnets
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
GB28237/32A
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.)
Deutsche Edelstahlwerke AG
Original Assignee
Deutsche Edelstahlwerke AG
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 Deutsche Edelstahlwerke AG filed Critical Deutsche Edelstahlwerke AG
Publication of GB399318A publication Critical patent/GB399318A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Powder Metallurgy (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

The bodies or pole-pieces, or both, of permanent or electromagnets are made by sintering masses of powdered metal. The compressed powder is heated inductively to a sintering temperature by current in a coil of copper tubing. A suitable composition contains 5-50 per cent of cobalt, 1-20 per cent of tungsten, up to 5 per cent of chromium, up to 15 per cent of molybdenum, 0,5-7 per cent of carbon, and the remainder iron.
GB28237/32A 1931-10-08 1932-10-10 Improvements in or relating to magnets Expired GB399318A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE399318X 1931-10-08

Publications (1)

Publication Number Publication Date
GB399318A true GB399318A (en) 1933-10-05

Family

ID=6397467

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28237/32A Expired GB399318A (en) 1931-10-08 1932-10-10 Improvements in or relating to magnets

Country Status (1)

Country Link
GB (1) GB399318A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE973758C (en) * 1942-06-16 1960-07-07 Philips Nv Process for the production of a sintered soft magnetic ferrite core containing zinc ferrite

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE973758C (en) * 1942-06-16 1960-07-07 Philips Nv Process for the production of a sintered soft magnetic ferrite core containing zinc ferrite

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