GB750537A - Method of producing permanent magnets - Google Patents

Method of producing permanent magnets

Info

Publication number
GB750537A
GB750537A GB3670/54A GB367054A GB750537A GB 750537 A GB750537 A GB 750537A GB 3670/54 A GB3670/54 A GB 3670/54A GB 367054 A GB367054 A GB 367054A GB 750537 A GB750537 A GB 750537A
Authority
GB
United Kingdom
Prior art keywords
magnetic
binding agent
mould
compressed
magnetic field
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
GB3670/54A
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.)
Max Baermann GmbH
Original Assignee
Max Baermann GmbH
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 Max Baermann GmbH filed Critical Max Baermann GmbH
Publication of GB750537A publication Critical patent/GB750537A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12Both compacting and sintering
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032Magnets 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
    • H01F1/10Magnets 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 non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
    • H01F1/11Magnets 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 non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles
    • H01F1/113Magnets 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 non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles in a bonding agent
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
    • H01F41/0273Imparting anisotropy

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

A pulverulent mixture of magnetic material and a binding agent is sprinkled into a mould whilst under the influence of a magnetic field directed so as to correspond to the direction of flux in the finished magnet and is there compressed, at right angles to said direction, to form a coherent body. The mould may be filled in layers, each layer being compressed before further filling. The moulded body may be a "tablet", several of which are stacked with their magnetic directions in alignment, heated and finally pressed. The magnetic material may be Al-Ni or Al-Ni-Co alloys, and magnetic oxides as of iron, barium or manganese and the particle size less than 0.1m . Metallic oxides may be subjected to heat treatment in a magnetic field before, or during, mixing with the binding agent, which may be of synthetic resin.
GB3670/54A 1953-02-06 1954-02-08 Method of producing permanent magnets Expired GB750537A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE329182X 1953-02-06

Publications (1)

Publication Number Publication Date
GB750537A true GB750537A (en) 1956-06-20

Family

ID=6186794

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3670/54A Expired GB750537A (en) 1953-02-06 1954-02-08 Method of producing permanent magnets

Country Status (3)

Country Link
CH (1) CH329182A (en)
FR (1) FR1092081A (en)
GB (1) GB750537A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3849213A (en) * 1966-09-01 1974-11-19 M Baermann Method of producing a molded anisotropic permanent magnet

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1263195B (en) * 1962-04-24 1968-03-14 Magnetfab Bonn Gmbh Process for the production of anisotropic permanent magnets from powdered magnetic material
DE102012208362A1 (en) * 2012-05-18 2013-11-21 Siemens Aktiengesellschaft Process for producing a permanent magnet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3849213A (en) * 1966-09-01 1974-11-19 M Baermann Method of producing a molded anisotropic permanent magnet

Also Published As

Publication number Publication date
FR1092081A (en) 1955-04-18
CH329182A (en) 1958-04-15

Similar Documents

Publication Publication Date Title
US3024392A (en) Process for the manufacture of plastic bound permanent magnets
ES390094A1 (en) Thick film inductor with ferromagnetic core
GB750537A (en) Method of producing permanent magnets
GB1365983A (en) Method for preparing liquid mixtures in manufacture of latex arti cles
ES420546A1 (en) Method for the production of prefabricated articles from parti culate material and articles produced by such a method
ZA727253B (en) Composite briquettes containing carbon and iron and method of producing
GB1307831A (en) Electric motors or generators
CN206194528U (en) A airtight transshipment equipment for neodymium iron boron radiation ring extruder
JPS55154721A (en) Annular permanent magnet and manufacture thereof
DE2136893A1 (en) SLOT FOR ELECTRIC MACHINERY
GB1330975A (en) Apparatus for carrying out physical and chamical processes in a vortex bed of ferromagnetic particles
GB789099A (en) Improvements in or relating to a method of producing magnetic cores
GB613825A (en) Improvements in and relating to permanent magnets or other elements possessing permanent magnetism
SU361102A1 (en) ALL-UNION I
JPS5667910A (en) Inductor element
JPS58141653A (en) Manufacture of motor
JPS5245588A (en) Method of producing thermosetting, spherical synthetic resin particles
JPS5622549A (en) Production of magnetic wedge for electrical rotary machine
DE1162257B (en) Process for the production of permanent magnets
JPS57164771A (en) Magnet roll for magnetic brush
JPS51132105A (en) A method of producing sintered molding
JPH0428207A (en) Manufacture of resin magnet
JPS5913837B2 (en) microwave door panel
JPS55145325A (en) Manufacturing method of anistropic magnet
JPS5796813A (en) Of molding method magnetic resin material