DE3484406D1 - Methode und apparat zur herstellung von anisotropen magneten. - Google Patents

Methode und apparat zur herstellung von anisotropen magneten.

Info

Publication number
DE3484406D1
DE3484406D1 DE8484106414T DE3484406T DE3484406D1 DE 3484406 D1 DE3484406 D1 DE 3484406D1 DE 8484106414 T DE8484106414 T DE 8484106414T DE 3484406 T DE3484406 T DE 3484406T DE 3484406 D1 DE3484406 D1 DE 3484406D1
Authority
DE
Germany
Prior art keywords
anisotropic magnets
producing anisotropic
producing
magnets
anisotropic
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 - Lifetime
Application number
DE8484106414T
Other languages
English (en)
Inventor
Shigeho Tanigawa
Shuichi Shiina
Kimio Uchida
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.)
Proterial Ltd
Original Assignee
Hitachi Metals 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
Priority claimed from JP10212783A external-priority patent/JPS59226367A/ja
Priority claimed from JP11785783A external-priority patent/JPS6010610A/ja
Priority claimed from JP11786483A external-priority patent/JPS6010279A/ja
Priority claimed from JP14713783A external-priority patent/JPS6037577A/ja
Priority claimed from JP15597583A external-priority patent/JPS6047409A/ja
Application filed by Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Application granted granted Critical
Publication of DE3484406D1 publication Critical patent/DE3484406D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F13/00—Apparatus or processes for magnetising or demagnetising
    • H01F13/003—Methods and devices for magnetising permanent magnets
    • 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
    • H01F41/0273—Imparting anisotropy
    • H01F41/028—Radial anisotropy
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0231—Magnetic circuits with PM for power or force generation
    • H01F7/0252—PM holding devices
    • H01F7/0268—Magnetic cylinders
    • 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
DE8484106414T 1983-06-08 1984-06-05 Methode und apparat zur herstellung von anisotropen magneten. Expired - Lifetime DE3484406D1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP10212783A JPS59226367A (ja) 1983-06-08 1983-06-08 異方性マグネツトロ−ルの製造方法
JP11785783A JPS6010610A (ja) 1983-06-29 1983-06-29 異方性マグネツトロ−ルの製造方法
JP11786483A JPS6010279A (ja) 1983-06-29 1983-06-29 異方性永久磁石の製造方法
JP14713783A JPS6037577A (ja) 1983-08-11 1983-08-11 異方性マグネットロ−ルの製造方法
JP15597583A JPS6047409A (ja) 1983-08-26 1983-08-26 異方性複合磁石の製造方法

Publications (1)

Publication Number Publication Date
DE3484406D1 true DE3484406D1 (de) 1991-05-16

Family

ID=27526080

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484106414T Expired - Lifetime DE3484406D1 (de) 1983-06-08 1984-06-05 Methode und apparat zur herstellung von anisotropen magneten.

Country Status (3)

Country Link
US (1) US4604042A (de)
EP (1) EP0128508B1 (de)
DE (1) DE3484406D1 (de)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4678634A (en) * 1985-04-18 1987-07-07 Shin-Etsu Chemical Co., Ltd. Method for the preparation of an anisotropic sintered permanent magnet
US5229738A (en) * 1987-06-16 1993-07-20 Kinetron B.V. Multipolar rotor
JPH0452027Y2 (de) * 1987-10-20 1992-12-08
GB8727851D0 (en) * 1987-11-27 1987-12-31 Ici Plc Process for production of bonded magnet
US5049053A (en) * 1988-08-18 1991-09-17 Hitachi Metals, Ltd. Metal mold for molding anisotropic permanent magnets
CA2014974A1 (en) * 1989-03-18 1991-10-19 Ken Ikuma Dies for extrusion moulding
DE69003720T3 (de) * 1989-04-14 1999-04-22 Daido Steel Co Ltd Verfahren und Vorrichtung für die Herstellung eines anisotropen Seltenerd-Magneten.
JP2730766B2 (ja) * 1989-08-08 1998-03-25 住友金属鉱山株式会社 射出成形粉末冶金製品の製造方法
US5145614A (en) * 1990-02-14 1992-09-08 Canon Kabushiki Kaisha Process for preparing magnet made of resin
US5319337A (en) * 1991-04-05 1994-06-07 Kanegafuchi Kagaku Kogyo Kabushiki Kaisha Composite molding of resin-bonded magnet for machine parts and process for producing the same
JP2694092B2 (ja) * 1991-10-21 1997-12-24 キヤノン株式会社 マグネットローラ、該マグネットローラの製造方法、該マグネットローラの製造装置、現像ユニットおよび該現像ユニットを備えた複写装置
DE69219081T2 (de) * 1991-12-11 1997-07-24 Kanegafuchi Chemical Ind Magnetrolle
US5405561A (en) * 1993-08-31 1995-04-11 Dowbrands L.P. Process for microperforating zippered film useful for manufacturing a reclosable zippered bag
EP0659508B1 (de) * 1993-12-27 2001-12-05 Sumitomo Special Metals Company Limited Verfahren zum Granulieren von Pulver
US6302669B1 (en) * 1995-05-31 2001-10-16 Bridgestone Corporation Apparatus for producing a solid magnet roller using a movable mold
US5758242A (en) * 1996-09-23 1998-05-26 Xerox Corporation Interlocking magnetic developer roll assembly and method of manufacturing
US6125255A (en) * 1996-09-23 2000-09-26 Xerox Corporation Magnet assembly with inserts and method of manufacturing
US5894004A (en) * 1996-11-20 1999-04-13 Xerox Corporation Method for manufacturing magnetic rolls
US6000922A (en) * 1998-07-28 1999-12-14 Xerox Corporation Molding assembly for producing magnetic development rollers having precise magnetic development fields
US6106759A (en) * 1999-03-26 2000-08-22 Cts Corporation Variable orientation magnet molding tool
US6123892A (en) * 1999-05-14 2000-09-26 Cts Corporation Variable orientation magnet molding tool
EP1739811A1 (de) 2004-04-20 2007-01-03 Aichi Steel Corporation Anisotroper bond-magnet für einen viermagnetpolmotor, motor damit, einrichtung zur orientierung der verarbeitung des anisotropen bond-magneten für einen viermagnetpolmotor
EP1830451A4 (de) * 2004-12-17 2016-03-23 Hitachi Metals Ltd Rotor für einen motor und verfahren zu seiner herstellung
JP2008233368A (ja) * 2007-03-19 2008-10-02 Ricoh Co Ltd マグネットローラ、現像剤担持体、現像装置、プロセスカートリッジ及び画像形成装置
US9312055B2 (en) * 2010-04-05 2016-04-12 Aichi Steel Corporation Case-integrated bonded magnet and production method for same
US20150197045A1 (en) * 2014-01-10 2015-07-16 Earth Magnets (Hong Kong) Company Limited Method for manufacturing magnetic rollers and system thereof
CN109419391A (zh) * 2017-08-31 2019-03-05 佛山市顺德区美的电热电器制造有限公司 磁盘安装组件及食物处理机
JP2019105800A (ja) * 2017-12-14 2019-06-27 コニカミノルタ株式会社 マグネットローラー、現像ローラー、現像装置、および画像形成装置
CN110931236B (zh) * 2019-11-20 2021-07-13 杭州科德磁业有限公司 注塑各向异性粘结钕铁硼磁瓦辐射取向成型方法及装置
CN111105918B (zh) * 2019-12-31 2022-07-29 上海三环磁性材料有限公司 一种永磁转子复合充磁装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2398018A (en) * 1941-09-26 1946-04-09 Linley Anthony Manufacture of permanent magnets
NL93759C (de) * 1953-04-11
JPS5162396A (de) * 1974-11-27 1976-05-29 Myazaki Kasei Kogyo Kk
JPS5347043A (en) * 1976-10-12 1978-04-27 Matsushita Electric Ind Co Ltd Infrared ray lamp
JPS556907A (en) * 1978-06-30 1980-01-18 Fujitsu Ltd Nonsynchronous 4-phase modulation system
JPS5669805A (en) * 1979-11-10 1981-06-11 Tdk Corp Manufacture of anisotropic plastic magnet
JPS56108207A (en) * 1980-01-31 1981-08-27 Fuji Xerox Co Ltd Magnetic roll and manufacture thereof
AT373901B (de) * 1980-05-16 1984-03-12 Henkel Kgaa Verfahren zur partiellen reduktion von delta 4,17 (20)- sowie gegebenenfalls weitere doppelbindungen in 1- und/oder 9(11)-stellung aufweisenden c 21 -steroidcarbonsaeuren und ihren estern
JPS57130407A (en) * 1981-02-06 1982-08-12 Daido Steel Co Ltd Cylindrical anisotropic resin magnet
JPS57164509A (en) * 1981-04-03 1982-10-09 Fuji Xerox Co Ltd Manufacture of magnet roll
JPS57170501A (en) * 1981-04-14 1982-10-20 Fuji Xerox Co Ltd Production of magneto roll
DE3124854C2 (de) * 1981-06-24 1985-03-14 Reinhard 8057 Eching Mühlbauer Hochdruckeinspritzsystem mit Ultraschall-Zerstäubung
JPS5948742B2 (ja) * 1982-03-05 1984-11-28 住友ベークライト株式会社 磁場成形用金型

Also Published As

Publication number Publication date
EP0128508A2 (de) 1984-12-19
US4604042A (en) 1986-08-05
EP0128508A3 (en) 1987-04-29
EP0128508B1 (de) 1991-04-10

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee