JPS5737803A - Manufacture of anisotropic magnet - Google Patents

Manufacture of anisotropic magnet

Info

Publication number
JPS5737803A
JPS5737803A JP11389380A JP11389380A JPS5737803A JP S5737803 A JPS5737803 A JP S5737803A JP 11389380 A JP11389380 A JP 11389380A JP 11389380 A JP11389380 A JP 11389380A JP S5737803 A JPS5737803 A JP S5737803A
Authority
JP
Japan
Prior art keywords
magnet
magnetic
materials
cavity
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.)
Granted
Application number
JP11389380A
Other languages
Japanese (ja)
Other versions
JPS6150368B2 (en
Inventor
Katsue Kenmochi
Tamotsu Wakahata
Hideyuki Yamada
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP11389380A priority Critical patent/JPS5737803A/en
Publication of JPS5737803A publication Critical patent/JPS5737803A/en
Publication of JPS6150368B2 publication Critical patent/JPS6150368B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0013—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fillers dispersed in the moulding material, e.g. metal particles
    • 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

Landscapes

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

Abstract

PURPOSE:To reduce loss in a magnetic field circuit and to obtain an anisotropic magnet having favorable efficiency when a magnet is to be treated to form the anisotropic magnet by a method wherein relative easiness is given to passing of magnetic line of force to apply orientational magnetic field, and ferromagnetic field parts and feeble magnetic field parts are formed in the magnet. CONSTITUTION:Coils 22, 23, magnetic materials 24,25, nonmagnetic materials 26, 27, are provided respectively on the fixed side (a) and on the movable side (b) of a metal mold for injection molding of a resin magnet, and a sprue hold 28 and a runner goove 29 are provided in the magnetic material 24 on the fixed side. A cavity 30 is made ot be generated between the magnetic materials 24, 25, and nonmagnetic materials 32, 31 are provided respectively on the face of the magnetic material 25 facing to the cavity and in the groove 29, and a composite of resin magnet heated in the molten condition is poured into the cavity 30 through the hole 28 and the groove 29 using a nozzle. A molding 33 being arranged alternately with regions 34 formed by contacting with the ferromagnetic materials and regions 35 formed by contacting with the nonmagnetic materials can be obtained by this way, and after it is demagnetized once, S poles and N poles are magnetized alternately in the region 35.
JP11389380A 1980-08-18 1980-08-18 Manufacture of anisotropic magnet Granted JPS5737803A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11389380A JPS5737803A (en) 1980-08-18 1980-08-18 Manufacture of anisotropic magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11389380A JPS5737803A (en) 1980-08-18 1980-08-18 Manufacture of anisotropic magnet

Publications (2)

Publication Number Publication Date
JPS5737803A true JPS5737803A (en) 1982-03-02
JPS6150368B2 JPS6150368B2 (en) 1986-11-04

Family

ID=14623771

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11389380A Granted JPS5737803A (en) 1980-08-18 1980-08-18 Manufacture of anisotropic magnet

Country Status (1)

Country Link
JP (1) JPS5737803A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60124812A (en) * 1983-12-09 1985-07-03 Seiko Epson Corp Manufacture of permanent magnet
US4547758A (en) * 1982-12-02 1985-10-15 Hitachi Metals, Ltd. Cylindrical permanent magnet and method of manufacturing
US4600555A (en) * 1983-05-20 1986-07-15 Hitachi Metals, Ltd. Method of producing a cylindrical permanent magnet
JPS623685A (en) * 1985-06-28 1987-01-09 Nippon Kokan Kk <Nkk> Detector for tube welding position
JPS6211212A (en) * 1985-07-09 1987-01-20 Sumitomo Bakelite Co Ltd Injection molding die for manufacturing plastic magnet
JPS6211209A (en) * 1985-07-09 1987-01-20 Sumitomo Bakelite Co Ltd Magnet and manufacture thereof
JPS6242005U (en) * 1985-09-02 1987-03-13
USRE34229E (en) * 1982-12-02 1993-04-20 Hitachi Metals, Ltd. Cylindrical permanent magnet and method of manufacturing
JP2018182123A (en) * 2017-04-17 2018-11-15 住友金属鉱山株式会社 Molding die for anisotropic magnet and manufacturing method of anisotropic magnet using the same

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62180568U (en) * 1986-05-08 1987-11-16
JPS6377780U (en) * 1986-11-07 1988-05-23
JPS6393178U (en) * 1986-12-02 1988-06-16
JPS63154272U (en) * 1987-03-28 1988-10-11
JPS63288376A (en) * 1987-05-20 1988-11-25 Nec Corp Image data display system
JPH0195376U (en) * 1987-12-18 1989-06-23

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4547758A (en) * 1982-12-02 1985-10-15 Hitachi Metals, Ltd. Cylindrical permanent magnet and method of manufacturing
USRE34229E (en) * 1982-12-02 1993-04-20 Hitachi Metals, Ltd. Cylindrical permanent magnet and method of manufacturing
US4600555A (en) * 1983-05-20 1986-07-15 Hitachi Metals, Ltd. Method of producing a cylindrical permanent magnet
JPS60124812A (en) * 1983-12-09 1985-07-03 Seiko Epson Corp Manufacture of permanent magnet
JPH0518243B2 (en) * 1983-12-09 1993-03-11 Seiko Epson Corp
JPS623685A (en) * 1985-06-28 1987-01-09 Nippon Kokan Kk <Nkk> Detector for tube welding position
JPS6211212A (en) * 1985-07-09 1987-01-20 Sumitomo Bakelite Co Ltd Injection molding die for manufacturing plastic magnet
JPS6211209A (en) * 1985-07-09 1987-01-20 Sumitomo Bakelite Co Ltd Magnet and manufacture thereof
JPH0513364B2 (en) * 1985-07-09 1993-02-22 Sumitomo Bakelite Co
JPS6242005U (en) * 1985-09-02 1987-03-13
JP2018182123A (en) * 2017-04-17 2018-11-15 住友金属鉱山株式会社 Molding die for anisotropic magnet and manufacturing method of anisotropic magnet using the same

Also Published As

Publication number Publication date
JPS6150368B2 (en) 1986-11-04

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