NO20001351L - Magnetisk fluid og fremgangsmÕte for fremstilling derav - Google Patents

Magnetisk fluid og fremgangsmÕte for fremstilling derav

Info

Publication number
NO20001351L
NO20001351L NO20001351A NO20001351A NO20001351L NO 20001351 L NO20001351 L NO 20001351L NO 20001351 A NO20001351 A NO 20001351A NO 20001351 A NO20001351 A NO 20001351A NO 20001351 L NO20001351 L NO 20001351L
Authority
NO
Norway
Prior art keywords
magnetic
oxidation
fluid
metal particles
particles coated
Prior art date
Application number
NO20001351A
Other languages
English (en)
Other versions
NO20001351D0 (no
Inventor
Young-Sam Kim
Katsuto Nakatsuka
Toyohisa Fujita
Takafumi Atarashi
Original Assignee
Nittetsu Mining Co Ltd
Katsuto Nakatsuka
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 Nittetsu Mining Co Ltd, Katsuto Nakatsuka filed Critical Nittetsu Mining Co Ltd
Publication of NO20001351D0 publication Critical patent/NO20001351D0/no
Publication of NO20001351L publication Critical patent/NO20001351L/no

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/20—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder
    • H01F1/28—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder dispersed or suspended in a bonding agent
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/44—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids
    • H01F1/442—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids the magnetic component being a metal or alloy, e.g. Fe
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/44—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids
    • H01F1/447—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids characterised by magnetoviscosity, e.g. magnetorheological, magnetothixotropic, magnetodilatant liquids

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Soft Magnetic Materials (AREA)
  • Lubricants (AREA)

Abstract

Et magnetisk fluid som kan virke kraftig og ved høy. nøyaktighet under virkningen av et ytre magnetisk felt hvor viskositeten økes betydelig ved tilføring av et ytre. magnetisk- f elt og regulering, av dette, hvor viskositeten kan kontrolleres-enkelt; og nøyaktri-gy -hvor- oksydasjonsbestandig-". heten til partiklene og dispergerbarheten derav er utmerket,. og som utviser tilfredsstillende egenskaper med hensyn til høy viskositet, og en fremgangsmåte for fremstilling derav. Fluidet kjennetegnes ved at magnetiske metallpartikler belagt. med antioksydantfilmer er stabilt dispergert i et løsnings-middel og at den stabile dispersjonen opprettholdes, og fremgangsmåten kjennetegnes ved dannelse av oksydfilmer på overflatene av utgangs-oksydpartikler for fremstilling av magnetiske metallpartikler, redusering av de resulterende .. oksydpartikler. f or,-å-danne, magnetiske ^metallpartikler -belagt med ant ioksydant ffilmer_,__qg_ stabil dispergering av de magnetiske metal1 partikler'belagt méd antioksydant fi Imer i et løsningsmiddel. —
NO20001351A 1997-09-16 2000-03-15 Magnetisk fluid og fremgangsmÕte for fremstilling derav NO20001351L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP25071397A JP3746884B2 (ja) 1997-09-16 1997-09-16 磁性流体及びその製造方法
PCT/JP1998/004122 WO1999014767A1 (fr) 1997-09-16 1998-09-11 Fluide magnetique et procede de production correspondant

Publications (2)

Publication Number Publication Date
NO20001351D0 NO20001351D0 (no) 2000-03-15
NO20001351L true NO20001351L (no) 2000-05-16

Family

ID=17211951

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20001351A NO20001351L (no) 1997-09-16 2000-03-15 Magnetisk fluid og fremgangsmÕte for fremstilling derav

Country Status (13)

Country Link
US (1) US6440322B1 (no)
EP (1) EP1017067B1 (no)
JP (1) JP3746884B2 (no)
KR (1) KR100520697B1 (no)
CN (1) CN1159735C (no)
AT (1) ATE320073T1 (no)
AU (1) AU757338B2 (no)
CA (1) CA2304229A1 (no)
DE (1) DE69833770T2 (no)
EA (1) EA001645B1 (no)
HK (1) HK1033385A1 (no)
NO (1) NO20001351L (no)
WO (1) WO1999014767A1 (no)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3537023B2 (ja) * 1998-01-23 2004-06-14 Ｎｏｋ株式会社 磁性流体
JP4071401B2 (ja) * 1999-09-07 2008-04-02 財団法人地域地盤環境研究所 廃棄物処分場の遮水構造とその形成方法
ES2304096B1 (es) * 2003-11-26 2009-05-07 Hoeganaes Corporation Suspensiones de composiciones de polvos metalurgicos y articulos y metodos que utilizan dichas composiciones.
CN100424370C (zh) * 2003-11-26 2008-10-08 赫格纳斯公司 冶金粉组合物和制品及其使用方法
DE502005008114D1 (de) * 2004-09-15 2009-10-22 Air Prod & Chem Silikat-beschichtung
US20060100764A1 (en) * 2004-11-08 2006-05-11 Adams Robert J Adjustable automotive center console
US7240941B2 (en) * 2004-11-08 2007-07-10 Lear Corporation Vehicle storage assembly with adjustable door
US7163248B2 (en) * 2004-11-08 2007-01-16 Lear Corporation Automotive console with adjustable armrest
DE102005057384A1 (de) * 2005-11-30 2007-05-31 Nanogate Ag Silikatumhüllte Teilchen in einer Metallschicht
US8808568B2 (en) * 2008-10-08 2014-08-19 University Of Rochester Magnetorheological materials, method for making, and applications thereof
CN101928626A (zh) * 2009-06-22 2010-12-29 重庆仪表材料研究所 高性能磁流变液
JP2012230958A (ja) * 2011-04-25 2012-11-22 Mitsumi Electric Co Ltd 磁性粒子、高周波用磁性材料及び高周波デバイス
NL2010439C2 (en) * 2013-03-12 2014-09-24 Ioniqa Technologies B V Magnetic fluid.
CN106504845A (zh) * 2016-11-15 2017-03-15 成都创驰汽车底盘系统有限公司 一种磁流变液制作方法
JP6765335B2 (ja) * 2017-03-31 2020-10-07 株式会社栗本鐵工所 磁気粘性流体
KR101808228B1 (ko) * 2017-08-23 2017-12-13 주식회사 씨케이머티리얼즈랩 자성 유체 디스플레이
EP3704723B1 (en) * 2017-10-31 2023-10-11 F. Hoffmann-La Roche AG Improved magnetic particles and uses thereof
CN109599240B (zh) * 2018-11-21 2020-09-18 湖南金泓电子科技有限责任公司 一种铁氧体类软磁粉芯及其制备方法
KR20210016792A (ko) * 2019-08-05 2021-02-17 삼성전자주식회사 햅틱용 액츄에이터 및 이를 포함하는 전자 장치
CN111243817A (zh) * 2020-02-17 2020-06-05 河北地质大学 非晶纳米颗粒液态金属磁性流体及其制备方法
CN113066632A (zh) * 2021-03-25 2021-07-02 中国科学院宁波材料技术与工程研究所 一种磁性液态金属粉末及其制备方法和应用

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1436595A (en) * 1973-03-30 1976-05-19 Sherritt Gordon Mines Ltd Process for the production of finely divided cobalt powders
JPS5950722B2 (ja) 1975-12-08 1984-12-10 ティーディーケイ株式会社 キヨウジセイキンゾクアルイハゴウキンリユウシノトクセイレツカボウシホウホウ
JPS5415195A (en) * 1977-07-05 1979-02-03 Shinko Electric Co Ltd Magnetic powder for magnetic linking device
JPS58161709A (ja) 1982-03-20 1983-09-26 Hitachi Maxell Ltd 磁性金属鉄粉の製造法
JPH0269859A (ja) * 1988-09-05 1990-03-08 Matsushita Electric Ind Co Ltd 文章校正支援装置
US5702630A (en) * 1992-07-16 1997-12-30 Nippon Oil Company, Ltd. Fluid having both magnetic and electrorheological characteristics
US5578238A (en) * 1992-10-30 1996-11-26 Lord Corporation Magnetorheological materials utilizing surface-modified particles
JPH0790290A (ja) * 1993-09-21 1995-04-04 Nippon Oil Co Ltd 磁性と電気粘性効果とを同時に有する流体用分散粒子及びそれを用いた流体。
JPH07226316A (ja) * 1994-02-14 1995-08-22 Toyohisa Fujita 磁性エレクトロレオロジー流体及びその製造方法

Also Published As

Publication number Publication date
EA200000224A1 (ru) 2000-10-30
EP1017067A4 (en) 2001-05-23
CN1159735C (zh) 2004-07-28
US6440322B1 (en) 2002-08-27
HK1033385A1 (en) 2001-08-24
EA001645B1 (ru) 2001-06-25
AU757338B2 (en) 2003-02-20
WO1999014767A1 (fr) 1999-03-25
KR100520697B1 (ko) 2005-10-12
NO20001351D0 (no) 2000-03-15
AU9003098A (en) 1999-04-05
JPH1197230A (ja) 1999-04-09
JP3746884B2 (ja) 2006-02-15
KR20010024058A (ko) 2001-03-26
CN1278946A (zh) 2001-01-03
EP1017067B1 (en) 2006-03-08
DE69833770D1 (de) 2006-05-04
EP1017067A1 (en) 2000-07-05
DE69833770T2 (de) 2006-08-17
ATE320073T1 (de) 2006-03-15
CA2304229A1 (en) 1999-03-25

Similar Documents

Publication Publication Date Title
NO20001351D0 (no) Magnetisk fluid og fremgangsmåte for fremstilling derav
ATE117829T1 (de) Magnetisch anziehbare teilchen und herstellungsverfahren.
DE3785690D1 (de) Elektrophoretische anzeigepartikel und verfahren zu deren herstellung.
AU2002368430A1 (en) Method and system for fabricating nanoscale patterns in light curable compositions using an electric field
AU674726B2 (en) Method for altering the surface characteristics of a metal
Grier From dynamics to devices: directed self-assembly of colloidal materials
JPS62167221A (ja) レピッドクロサイトの製造方法
EP0866486A3 (en) Method for production of electron source substrate provided with electron emitting element and method for production of electronic device using the substrate
ATE378291T1 (de) Feine titanoxidpartikel und verfahren zur herstellung derselben
EP0374400A3 (de) Anordnung zum Regeln des Stromes durch einen Verbraucher sowie Anwendung
WO1993002221A3 (en) Manufacturing method of low melt metal fine particles
JP3163190B2 (ja) 酸化膜の製造方法と製造装置
BR8902403A (pt) Processo de dispersao e respectiva dispersao
FR2378871A1 (fr) Procede d'introduction d'un element par diffusion dans un metal et appareils electriques comportant un metal ainsi traite
FR2363856A1 (fr) Milieu d'enregistrement magnetique et procede de sa preparation
BR9001348A (pt) Processo de producao de um filme de metal/oxido de duas fases;filme de metal/oxido,pigmento dicroico,tinta dicroica,dispositivo de interferencia otica,material de embalagem,meio magnetico e catalisador
MY141538A (en) Method and system for fabricating nanoscale patterns in light curable compositions using an electric field
SU1761390A2 (ru) Устройство дл нанесени концентратора напр жений
JPH0224633A (ja) 電気泳動表示装置
JPS5750431A (en) Forming method for minute pattern
JPS54130499A (en) Production of needle-like goethite
KR930014313A (ko) 자기기록 매체의 제조방법
EP0256459A3 (de) Verfahren zur Herstellung von nadelförmigem, ferrimagnetischem Eisenoxid
Warnecke et al. Production planning and control-PPS-with the pull-principle and integrated bottle-neck-management
KR950000617A (ko) 고보자력 Sr- 페라이트 자성체의 제조 방법

Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application