EP0576282A3 - - Google Patents

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Publication number
EP0576282A3
EP0576282A3 EP19930304944 EP93304944A EP0576282A3 EP 0576282 A3 EP0576282 A3 EP 0576282A3 EP 19930304944 EP19930304944 EP 19930304944 EP 93304944 A EP93304944 A EP 93304944A EP 0576282 A3 EP0576282 A3 EP 0576282A3
Authority
EP
European Patent Office
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
EP19930304944
Other versions
EP0576282A2 (en
EP0576282B1 (en
Inventor
Osamu Yamashita
Masahiro Asano
Tsunekazu Saigo
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.)
Neomax Co Ltd
Original Assignee
Sumitomo Special Metals 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
Priority claimed from JP04601093A external-priority patent/JP3184355B2/ja
Priority claimed from JP5097190A external-priority patent/JPH06290922A/ja
Priority claimed from JP12489393A external-priority patent/JP3229435B2/ja
Application filed by Sumitomo Special Metals Co Ltd filed Critical Sumitomo Special Metals Co Ltd
Publication of EP0576282A2 publication Critical patent/EP0576282A2/en
Publication of EP0576282A3 publication Critical patent/EP0576282A3/xx
Application granted granted Critical
Publication of EP0576282B1 publication Critical patent/EP0576282B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
    • B22F3/225—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip by injection molding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
    • 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
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
    • H01F1/0577—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together sintered
    • 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
    • H01F41/0293—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 diffusion of rare earth elements, e.g. Tb, Dy or Ho, into permanent magnets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
EP19930304944 1992-06-24 1993-06-24 A process for preparing R-Fe-B type sintered magnets employing the injection molding method Expired - Lifetime EP0576282B1 (en)

Applications Claiming Priority (16)

Application Number Priority Date Filing Date Title
JP191727/92 1992-06-24
JP191728/92 1992-06-24
JP19172792 1992-06-24
JP19172892 1992-06-24
JP289421/92 1992-10-01
JP28942092 1992-10-01
JP28942192 1992-10-01
JP289420/92 1992-10-01
JP28942292 1992-10-01
JP289422/92 1992-10-01
JP04601093A JP3184355B2 (ja) 1993-02-09 1993-02-09 焼結磁石用合金粉末及びその製造方法
JP46010/93 1993-02-09
JP5097190A JPH06290922A (ja) 1993-03-30 1993-03-30 射出成形法によるＲ−Ｆｅ−Ｂ系焼結磁石の製造方法
JP97190/93 1993-03-30
JP124893/93 1993-04-28
JP12489393A JP3229435B2 (ja) 1993-04-28 1993-04-28 射出成形法によるＲ−Ｆｅ−Ｂ系焼結磁石の製造方法

Publications (3)

Publication Number Publication Date
EP0576282A2 EP0576282A2 (en) 1993-12-29
EP0576282A3 true EP0576282A3 (pt) 1994-03-23
EP0576282B1 EP0576282B1 (en) 1997-09-24

Family

ID=27572338

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930304944 Expired - Lifetime EP0576282B1 (en) 1992-06-24 1993-06-24 A process for preparing R-Fe-B type sintered magnets employing the injection molding method

Country Status (2)

Country Link
EP (1) EP0576282B1 (pt)
DE (1) DE69314098T2 (pt)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1122287C (zh) * 1995-06-26 2003-09-24 住友特殊金属株式会社 稀土系烧结磁铁的制造方法
DE19709651A1 (de) * 1996-03-16 1997-10-30 Widia Gmbh Verbundwerkstoff und Verfahren zu seiner Herstellung
US6126873A (en) * 1998-06-03 2000-10-03 Alliedsignal Inc. Process for making stainless steel aqueous molding compositions
US5989493A (en) * 1998-08-28 1999-11-23 Alliedsignal Inc. Net shape hastelloy X made by metal injection molding using an aqueous binder
JP4228547B2 (ja) 2000-03-28 2009-02-25 Ｊｆｅスチール株式会社 金型潤滑用潤滑剤および高密度鉄基粉末成形体の製造方法
US6478842B1 (en) 2000-07-19 2002-11-12 R. A. Brands, Llc Preparation of articles using metal injection molding
ATE555485T1 (de) * 2001-01-30 2012-05-15 Hitachi Metals Ltd Verfahren zur herstellung eines permanentmagneten
WO2012176511A1 (ja) * 2011-06-24 2012-12-27 日東電工株式会社 希土類永久磁石及び希土類永久磁石の製造方法
EP2685474B1 (en) * 2011-06-24 2020-12-23 Nitto Denko Corporation Production method for rare earth permanent magnet
CN106938332B (zh) * 2017-04-26 2019-03-15 北京科技大学 一种3d凝胶打印制备钕铁硼磁体的方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60254603A (ja) * 1984-05-30 1985-12-16 Hitachi Metals Ltd 永久磁石の製造方法
JPS62252919A (ja) * 1986-04-25 1987-11-04 Seiko Epson Corp 希土類焼結磁石の製造方法
JPH01150303A (ja) * 1987-12-08 1989-06-13 Mitsubishi Steel Mfg Co Ltd 磁気異方性焼結磁石及びその製造方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60254603A (ja) * 1984-05-30 1985-12-16 Hitachi Metals Ltd 永久磁石の製造方法
JPS62252919A (ja) * 1986-04-25 1987-11-04 Seiko Epson Corp 希土類焼結磁石の製造方法
JPH01150303A (ja) * 1987-12-08 1989-06-13 Mitsubishi Steel Mfg Co Ltd 磁気異方性焼結磁石及びその製造方法

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 10, no. 121 (E - 401) 7 May 1986 (1986-05-07) *
PATENT ABSTRACTS OF JAPAN vol. 12, no. 127 (E - 602) 20 April 1988 (1988-04-20) *
PATENT ABSTRACTS OF JAPAN vol. 13, no. 410 (E - 819) 11 September 1989 (1989-09-11) *

Also Published As

Publication number Publication date
EP0576282A2 (en) 1993-12-29
DE69314098D1 (de) 1997-10-30
EP0576282B1 (en) 1997-09-24
DE69314098T2 (de) 1998-03-12

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