JPS57130407A - Cylindrical anisotropic resin magnet - Google Patents

Cylindrical anisotropic resin magnet

Info

Publication number
JPS57130407A
JPS57130407A JP1665881A JP1665881A JPS57130407A JP S57130407 A JPS57130407 A JP S57130407A JP 1665881 A JP1665881 A JP 1665881A JP 1665881 A JP1665881 A JP 1665881A JP S57130407 A JPS57130407 A JP S57130407A
Authority
JP
Japan
Prior art keywords
shaft
magnet
resin
magnetized
ferromagnetic powder
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.)
Pending
Application number
JP1665881A
Other languages
Japanese (ja)
Inventor
Takeshi Anpo
Takahiro Motone
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.)
Daido Steel Co Ltd
Original Assignee
Daido Steel 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 Daido Steel Co Ltd filed Critical Daido Steel Co Ltd
Priority to JP1665881A priority Critical patent/JPS57130407A/en
Publication of JPS57130407A publication Critical patent/JPS57130407A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/2726—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of a single magnet or two or more axially juxtaposed single magnets
    • H02K1/2733—Annular magnets

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)

Abstract

PURPOSE:To reduce production cost with the improvement of dimensional accuracy, by forming the magnet section unitarily with an easily-magnetization shaft, when the shaft easily magnetized by ferromagnetic powder is formed as a magnet of the generator, etc. for the bicycle lamp in multipolar arrangement in the radius direction of the cylinder. CONSTITUTION:The cylindrical anisotropic resin magnet 11 is obtained by a method wherein on forming, the worked shaft 2 is inserted in a metal mold and the mixture of ferromagnetic powder and binder resin is formed to a cylinder around the shaft 2 by injection or compression molding. Extrusion molding is also available for the mixture of magnetic powder and resin. For said molding, magnetic field is impressed and the easily-magnetization shaft magnetized by ferromagnetic powder which disperses in the resin is provided with anisotropy in arrangement with multipolarity in the radius direction of the cylindrical magnet. Besides, the shaft is magnetized with multipolarity in said direction. Thus, high magnetic flux density sufficiently serviceable can be obtained. Further, the contact surface of the shaft can be roulette-worked to provide perfect clamping of the shaft by the magnet.
JP1665881A 1981-02-06 1981-02-06 Cylindrical anisotropic resin magnet Pending JPS57130407A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1665881A JPS57130407A (en) 1981-02-06 1981-02-06 Cylindrical anisotropic resin magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1665881A JPS57130407A (en) 1981-02-06 1981-02-06 Cylindrical anisotropic resin magnet

Publications (1)

Publication Number Publication Date
JPS57130407A true JPS57130407A (en) 1982-08-12

Family

ID=11922436

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1665881A Pending JPS57130407A (en) 1981-02-06 1981-02-06 Cylindrical anisotropic resin magnet

Country Status (1)

Country Link
JP (1) JPS57130407A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5936389U (en) * 1982-08-28 1984-03-07 株式会社タカラ magnetic top running path
US4547758A (en) * 1982-12-02 1985-10-15 Hitachi Metals, Ltd. Cylindrical permanent magnet and method of manufacturing
JPS60206110A (en) * 1984-03-30 1985-10-17 Hitachi Metals Ltd Anisotropic compound magnet, magnet roll containing anisotropic compound magnet and manufacture thereof
JPS6179212A (en) * 1984-09-26 1986-04-22 Hitachi Metals Ltd Manufacture of magnetic roll
US4600555A (en) * 1983-05-20 1986-07-15 Hitachi Metals, Ltd. Method of producing a cylindrical permanent magnet
US4604042A (en) * 1983-06-08 1986-08-05 Hitachi Metals, Inc. Apparatus for producing anisotropic magnets
JPS6212107A (en) * 1985-07-09 1987-01-21 Kanegafuchi Chem Ind Co Ltd Cylindrical molding unit for electron beam regulation and its electron-beam regulation magnet
US4678616A (en) * 1984-11-07 1987-07-07 Sumitomo Bakelite Company Limited Method of producing permanent magnet
JPH04156571A (en) * 1990-10-19 1992-05-29 Sagami Kagaku Kinzoku:Kk Magnetic roller and manufacture thereof
USRE34229E (en) * 1982-12-02 1993-04-20 Hitachi Metals, Ltd. Cylindrical permanent magnet and method of manufacturing
US5565967A (en) * 1994-07-07 1996-10-15 Hitachi Metals, Ltd. Method of forming image using magnetic developer with high volume resistivity
US5669051A (en) * 1995-04-04 1997-09-16 Hitachi Metals, Ltd. Method of electrostatically forming visual image
US5717983A (en) * 1994-02-09 1998-02-10 Hitachi Metals, Ltd. Simultaneous developing/cleaning method using magnetic support member
DE102015211851A1 (en) * 2015-06-25 2016-12-29 Mahle International Gmbh Permanent magnetic rotor of a synchronous electric motor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5427995A (en) * 1977-08-02 1979-03-02 Matsushita Electric Ind Co Ltd Magnetic circuit device
JPS55105315A (en) * 1979-02-08 1980-08-12 Matsushita Electric Ind Co Ltd Manufacturing method of roll-shaped magnet

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5427995A (en) * 1977-08-02 1979-03-02 Matsushita Electric Ind Co Ltd Magnetic circuit device
JPS55105315A (en) * 1979-02-08 1980-08-12 Matsushita Electric Ind Co Ltd Manufacturing method of roll-shaped magnet

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5936389U (en) * 1982-08-28 1984-03-07 株式会社タカラ magnetic top running path
JPS6311997Y2 (en) * 1982-08-28 1988-04-06
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
US4604042A (en) * 1983-06-08 1986-08-05 Hitachi Metals, Inc. Apparatus for producing anisotropic magnets
JPS60206110A (en) * 1984-03-30 1985-10-17 Hitachi Metals Ltd Anisotropic compound magnet, magnet roll containing anisotropic compound magnet and manufacture thereof
JPS6179212A (en) * 1984-09-26 1986-04-22 Hitachi Metals Ltd Manufacture of magnetic roll
US4678616A (en) * 1984-11-07 1987-07-07 Sumitomo Bakelite Company Limited Method of producing permanent magnet
JPS6212107A (en) * 1985-07-09 1987-01-21 Kanegafuchi Chem Ind Co Ltd Cylindrical molding unit for electron beam regulation and its electron-beam regulation magnet
JPH04156571A (en) * 1990-10-19 1992-05-29 Sagami Kagaku Kinzoku:Kk Magnetic roller and manufacture thereof
US5926677A (en) * 1994-02-09 1999-07-20 Hitachi Metals, Inc. Image forming developing method
US5717983A (en) * 1994-02-09 1998-02-10 Hitachi Metals, Ltd. Simultaneous developing/cleaning method using magnetic support member
US6072974A (en) * 1994-02-09 2000-06-06 Hitachi Metals, Ltd. Image forming developing method
US6075964A (en) * 1994-02-09 2000-06-13 Hitachi Metals, Ltd. Image forming developing method
US5565967A (en) * 1994-07-07 1996-10-15 Hitachi Metals, Ltd. Method of forming image using magnetic developer with high volume resistivity
US5669051A (en) * 1995-04-04 1997-09-16 Hitachi Metals, Ltd. Method of electrostatically forming visual image
DE102015211851A1 (en) * 2015-06-25 2016-12-29 Mahle International Gmbh Permanent magnetic rotor of a synchronous electric motor

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