GB1003689A - A method of producing pressings from ferromagnetic powder to form permanent magnets - Google Patents

A method of producing pressings from ferromagnetic powder to form permanent magnets

Info

Publication number
GB1003689A
GB1003689A GB4182061A GB4182061A GB1003689A GB 1003689 A GB1003689 A GB 1003689A GB 4182061 A GB4182061 A GB 4182061A GB 4182061 A GB4182061 A GB 4182061A GB 1003689 A GB1003689 A GB 1003689A
Authority
GB
United Kingdom
Prior art keywords
permanent magnets
ferromagnetic powder
form permanent
nov
pressings
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
GB4182061A
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 GB1003689A publication Critical patent/GB1003689A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus 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
    • H01F41/02—Apparatus 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
    • H01F41/0253—Apparatus 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
    • H01F41/0273—Imparting anisotropy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/033—Magnet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/0318—Processes
    • Y10T137/0391—Affecting flow by the addition of material or energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49075—Electromagnet, transformer or inductor including permanent magnet or core
    • Y10T29/49076—From comminuted material

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Powder Metallurgy (AREA)
  • Sorting Of Articles (AREA)

Abstract

1,003,689. Moulding permanent magnets. DEUTSCHE EDELSTAHLWERKE A.G. Nov. 22, 1961 [Nov. 23, 1960], No. 41820/61. Heading B5A. [Also in Division H1] In making a pressing from ferromagnetic material, e.g. barium ferrite, in order to form a permanent magnet, the fine non-flowable magnetic powder is fed to a container where it it is subjected to a magnetic field which causes the powder particles to cling together and form larger particles which can then flow under gravity into the cavity of a pressing die or into a feeder from which it flows into the die cavity.
GB4182061A 1960-11-23 1961-11-22 A method of producing pressings from ferromagnetic powder to form permanent magnets Expired GB1003689A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED0034796 1960-11-23

Publications (1)

Publication Number Publication Date
GB1003689A true GB1003689A (en) 1965-09-08

Family

ID=7042354

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4182061A Expired GB1003689A (en) 1960-11-23 1961-11-22 A method of producing pressings from ferromagnetic powder to form permanent magnets

Country Status (2)

Country Link
US (1) US3189667A (en)
GB (1) GB1003689A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3341940A (en) * 1962-03-29 1967-09-19 Philips Corp Method of making a permanent magnet
FR1462732A (en) * 1965-03-30 1966-12-16 Deutsche Edelstahlwerke Ag Device for manufacturing compressed powder elements endowed with permanent magnetization
DE1764279A1 (en) * 1968-05-08 1972-01-27 Magnetfab Bonn Gmbh Process for the production of permanent magnets from anisotropic permanent magnet powder
JP2599378B2 (en) * 1987-02-06 1997-04-09 松下電器産業株式会社 Manufacturing method of resin magnet
US5672363A (en) * 1990-11-30 1997-09-30 Intermetallics Co., Ltd. Production apparatus for making green compact
ES2087214T3 (en) * 1990-11-30 1996-07-16 Intermetallics Co Ltd METHOD AND APPARATUS FOR THE MANUFACTURE OF A PERMANENT MAGNET FOR THE FORMATION OF A COMPACT BODY WITHOUT CURING AND SINTERING.
ATE148641T1 (en) * 1992-08-10 1997-02-15 Intermetallics Co Ltd COATING PROCESS
CA2882504C (en) 2012-08-27 2020-11-10 Yingui Sun Artificial snow at normal temperature

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2742185A (en) * 1954-01-11 1956-04-17 Norton Co Method and apparatus for feeding and dispensing particulate materials
US2959823A (en) * 1958-12-24 1960-11-15 Deutsche Edelstahlwerke Ag Method of producing compressed parts for permanent magnets
US2984871A (en) * 1959-06-04 1961-05-23 Steatite Res Corp Dry process molding of hard ferrite powders
US2984866A (en) * 1959-06-04 1961-05-23 Steatite Res Corp Process and apparatus for filling and orienting dry, hard ferromagnetic powders into molds

Also Published As

Publication number Publication date
DE1414755B2 (en) 1972-01-13
DE1414755A1 (en) 1968-10-03
US3189667A (en) 1965-06-15

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