GB766046A - Improvements in or relating to the manufacture of permanent magnets - Google Patents

Improvements in or relating to the manufacture of permanent magnets

Info

Publication number
GB766046A
GB766046A GB34763/53A GB3476353A GB766046A GB 766046 A GB766046 A GB 766046A GB 34763/53 A GB34763/53 A GB 34763/53A GB 3476353 A GB3476353 A GB 3476353A GB 766046 A GB766046 A GB 766046A
Authority
GB
United Kingdom
Prior art keywords
permanent magnets
dec
solidification
plane
alloy
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
GB34763/53A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries Ltd
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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB766046A publication Critical patent/GB766046A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

766,046. Making magnets; casting-processes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Dec. 14, 1953 [Dec. 17, 1952], No. 34763/53. Classes 83 (1) and 83 (2). A method of manufacturing anisotropic permanent magnets from an iron-base alloy containing Ni, Al and Co, comprises cooling the two pole-faces, as by metal chill-plates 3, 4, during casting of the alloy in a mould 1 and, after solidification, dividing the magnet, e.g. by a sharp tap with a hammer, along the melting plane 7 of the two solidification fronts. A ring 2 of an aluminium-containing chemicallyexothermic material provided in the sand mould 1 in the proximity of the plane 7 may be pre-ignited by high-frequency induction, or by the liquid alloy poured through the channel 5. Specifications 652,022, 660,580, 661,727, 743,634 and 766,045 are referred to.
GB34763/53A 1952-12-17 1953-12-14 Improvements in or relating to the manufacture of permanent magnets Expired GB766046A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL766046X 1952-12-17

Publications (1)

Publication Number Publication Date
GB766046A true GB766046A (en) 1957-01-16

Family

ID=19827621

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34763/53A Expired GB766046A (en) 1952-12-17 1953-12-14 Improvements in or relating to the manufacture of permanent magnets

Country Status (1)

Country Link
GB (1) GB766046A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1289856B (en) * 1962-01-12 1969-02-27 Demag Ag Converter with inert gas barrier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1289856B (en) * 1962-01-12 1969-02-27 Demag Ag Converter with inert gas barrier

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