GB613825A - Improvements in and relating to permanent magnets or other elements possessing permanent magnetism - Google Patents

Improvements in and relating to permanent magnets or other elements possessing permanent magnetism

Info

Publication number
GB613825A
GB613825A GB18400/45A GB1840045A GB613825A GB 613825 A GB613825 A GB 613825A GB 18400/45 A GB18400/45 A GB 18400/45A GB 1840045 A GB1840045 A GB 1840045A GB 613825 A GB613825 A GB 613825A
Authority
GB
United Kingdom
Prior art keywords
relating
permanent
elements possessing
permanent magnets
magnetism
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
GB18400/45A
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.)
Association des Ouvriers en Instruments de Precision
Original Assignee
Association des Ouvriers en Instruments de Precision
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 Association des Ouvriers en Instruments de Precision filed Critical Association des Ouvriers en Instruments de Precision
Publication of GB613825A publication Critical patent/GB613825A/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
    • H01F1/0302—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity characterised by unspecified or heterogeneous hardness or specially adapted for magnetic hardness transitions
    • H01F1/0306—Metals or alloys, e.g. LAVES phase alloys of the MgCu2-type
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0207—Using a mixture of prealloyed powders or a master alloy

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

In compressing a mixture of metallic powders having different values of coercive force and size to form a permanent magnet, the mould is lined with sheets of material such as soft iron from 2 - 3 tenths m.m. thick to prevent wear. The linings may be removed from the core immediately after moulding or after heat treatment.
GB18400/45A 1944-05-05 1945-07-18 Improvements in and relating to permanent magnets or other elements possessing permanent magnetism Expired GB613825A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR907756T 1944-05-05

Publications (1)

Publication Number Publication Date
GB613825A true GB613825A (en) 1948-12-03

Family

ID=9406535

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18400/45A Expired GB613825A (en) 1944-05-05 1945-07-18 Improvements in and relating to permanent magnets or other elements possessing permanent magnetism

Country Status (2)

Country Link
FR (1) FR907756A (en)
GB (1) GB613825A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2621661A (en) * 1947-12-03 1952-12-16 Gaskin Arthur John Cigarette extinguishing means and ash receptacle
GB2236435A (en) * 1989-08-29 1991-04-03 Mabuchi Motor Co Pole creating sections for a permanent field magnet

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2621661A (en) * 1947-12-03 1952-12-16 Gaskin Arthur John Cigarette extinguishing means and ash receptacle
GB2236435A (en) * 1989-08-29 1991-04-03 Mabuchi Motor Co Pole creating sections for a permanent field magnet
GB2236435B (en) * 1989-08-29 1993-11-17 Mabuchi Motor Co Field magnet for miniature motors

Also Published As

Publication number Publication date
FR907756A (en) 1946-03-21

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