GB968129A - Improvements in or relating to anisotropic permanent magnets and their manufacture - Google Patents

Improvements in or relating to anisotropic permanent magnets and their manufacture

Info

Publication number
GB968129A
GB968129A GB1857962A GB1857962A GB968129A GB 968129 A GB968129 A GB 968129A GB 1857962 A GB1857962 A GB 1857962A GB 1857962 A GB1857962 A GB 1857962A GB 968129 A GB968129 A GB 968129A
Authority
GB
United Kingdom
Prior art keywords
permanent magnets
mould
heat
relating
manufacture
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
GB1857962A
Inventor
Desmond Leonard Mawson
John Robert Grayson
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.)
Ross & Co Foundry Ltd
Original Assignee
Ross & Co Foundry 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 Ross & Co Foundry Ltd filed Critical Ross & Co Foundry Ltd
Priority to GB1857962A priority Critical patent/GB968129A/en
Publication of GB968129A publication Critical patent/GB968129A/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
    • H01F1/032—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 hard-magnetic materials
    • H01F1/04—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 hard-magnetic materials metals or alloys

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

968,129. Casting processes. ROSS & CO. (FOUNDRY) Ltd. April 11, 1963 [May 15, 1962], No. 18579/62. Heading B3F. A process for producing permanent magnets of the Fe-Al-Ni-Co alloy type with a unidirectional columnar crystal structure comprises casting into a mould cavity chilled at one end, the mould consisting of a major proportion of moulding sand and a minor proportion of exothermic material and being subjected before pouring to an external source of heat, e.g. electrical radiation sufficiently powerful to heat it to firing temperature for the exothermic material content. The mould may be made by the CO 2 process and contain a small addition of wood flour and graphite. Specifications 634,686, 634,700, 640,886, 659,527 and 676,881 are referred to.
GB1857962A 1962-05-15 1962-05-15 Improvements in or relating to anisotropic permanent magnets and their manufacture Expired GB968129A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1857962A GB968129A (en) 1962-05-15 1962-05-15 Improvements in or relating to anisotropic permanent magnets and their manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1857962A GB968129A (en) 1962-05-15 1962-05-15 Improvements in or relating to anisotropic permanent magnets and their manufacture

Publications (1)

Publication Number Publication Date
GB968129A true GB968129A (en) 1964-08-26

Family

ID=10114882

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1857962A Expired GB968129A (en) 1962-05-15 1962-05-15 Improvements in or relating to anisotropic permanent magnets and their manufacture

Country Status (1)

Country Link
GB (1) GB968129A (en)

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