DE602005013326D1 - Magnetisches Pulver aus Eisennitrid mit hoher Wetterbeständigkeit und dessen Herstellungsverfahren - Google Patents

Magnetisches Pulver aus Eisennitrid mit hoher Wetterbeständigkeit und dessen Herstellungsverfahren

Info

Publication number
DE602005013326D1
DE602005013326D1 DE602005013326T DE602005013326T DE602005013326D1 DE 602005013326 D1 DE602005013326 D1 DE 602005013326D1 DE 602005013326 T DE602005013326 T DE 602005013326T DE 602005013326 T DE602005013326 T DE 602005013326T DE 602005013326 D1 DE602005013326 D1 DE 602005013326D1
Authority
DE
Germany
Prior art keywords
manufacturing process
magnetic powder
weather resistance
iron nitride
high weather
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.)
Active
Application number
DE602005013326T
Other languages
English (en)
Inventor
Kenji Masada
Takayuki Yoshida
Takafumi Amino
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.)
Dowa Electronics Materials Co Ltd
Original Assignee
Dowa Electronics Materials 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 Dowa Electronics Materials Co Ltd filed Critical Dowa Electronics Materials Co Ltd
Publication of DE602005013326D1 publication Critical patent/DE602005013326D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H01F1/032—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 hard-magnetic materials
    • H01F1/04—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 hard-magnetic materials metals or alloys
    • H01F1/06—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 hard-magnetic materials metals or alloys in the form of particles, e.g. powder
    • H01F1/061—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 hard-magnetic materials metals or alloys in the form of particles, e.g. powder with a protective layer
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y10T428/2993—Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
DE602005013326T 2004-08-02 2005-08-02 Magnetisches Pulver aus Eisennitrid mit hoher Wetterbeständigkeit und dessen Herstellungsverfahren Active DE602005013326D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004225822A JP4734599B2 (ja) 2004-08-02 2004-08-02 耐候性の良い窒化鉄系磁性粉末およびその製造法

Publications (1)

Publication Number Publication Date
DE602005013326D1 true DE602005013326D1 (de) 2009-04-30

Family

ID=35262210

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005013326T Active DE602005013326D1 (de) 2004-08-02 2005-08-02 Magnetisches Pulver aus Eisennitrid mit hoher Wetterbeständigkeit und dessen Herstellungsverfahren

Country Status (5)

Country Link
US (1) US7371458B2 (de)
EP (1) EP1623779B1 (de)
JP (1) JP4734599B2 (de)
CN (1) CN1733956B (de)
DE (1) DE602005013326D1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4734602B2 (ja) * 2004-12-21 2011-07-27 Ｄｏｗａエレクトロニクス株式会社 保存安定性に優れた窒化鉄系磁性粉末
JP4562671B2 (ja) * 2006-03-13 2010-10-13 日立マクセル株式会社 磁性塗料の製造方法
JP4769130B2 (ja) * 2006-06-14 2011-09-07 Ｄｏｗａエレクトロニクス株式会社 窒化鉄系磁性粉末およびその製造法並びに磁気記録媒体
CN101817081A (zh) * 2010-04-30 2010-09-01 西南交通大学 一种多孔铁基合金材料的制备方法
JP5858419B2 (ja) * 2011-04-27 2016-02-10 戸田工業株式会社 強磁性粒子粉末の製造方法、異方性磁石、ボンド磁石及び圧粉磁石
CN116694974B (zh) * 2023-08-07 2023-10-03 山东省地质矿产勘查开发局第二水文地质工程地质大队(山东省鲁北地质工程勘察院) 一种增强取心钻头耐磨性的方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6076105A (ja) * 1983-10-01 1985-04-30 Taiyo Yuden Co Ltd 鉄系窒化物磁性粉
JP3032927B2 (ja) * 1993-02-05 2000-04-17 日鉄鉱業株式会社 表面に金属酸化物膜を有する金属又は金属化合物粉体
CN1156516A (zh) * 1994-07-18 1997-08-06 高桥研 磁性薄膜及其制造方法
US5605752A (en) * 1994-09-28 1997-02-25 Victor Company Of Japan, Ltd. Magnetic recording medium containing magnetic powder of iron nitride
JP3580435B2 (ja) * 1994-10-12 2004-10-20 日鉄鉱業株式会社 窒化物粉体及びその製造方法
JP3848486B2 (ja) * 1999-03-25 2006-11-22 日立マクセル株式会社 磁気記録媒体用窒化鉄系磁性粉末材料及びその製造方法並びに磁気記録媒体
GB2403587B (en) * 2002-03-18 2005-08-03 Hitachi Maxell Magnetic recording medium and magnetic recording cartridge
US6964811B2 (en) * 2002-09-20 2005-11-15 Hitachi Maxell, Ltd. Magnetic powder, method for producing the same and magnetic recording medium comprising the same
GB2422949B (en) * 2003-02-19 2007-05-30 Hitachi Maxell Magnetic recording medium

Also Published As

Publication number Publication date
EP1623779A1 (de) 2006-02-08
CN1733956B (zh) 2010-08-04
US7371458B2 (en) 2008-05-13
JP2006044967A (ja) 2006-02-16
JP4734599B2 (ja) 2011-07-27
US20060024501A1 (en) 2006-02-02
CN1733956A (zh) 2006-02-15
EP1623779B1 (de) 2009-03-18

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition