CN1101750C - 稀土金属基合金粉末的供料方法及装置 - Google Patents
稀土金属基合金粉末的供料方法及装置 Download PDFInfo
- Publication number
- CN1101750C CN1101750C CN99127091A CN99127091A CN1101750C CN 1101750 C CN1101750 C CN 1101750C CN 99127091 A CN99127091 A CN 99127091A CN 99127091 A CN99127091 A CN 99127091A CN 1101750 C CN1101750 C CN 1101750C
- Authority
- CN
- China
- Prior art keywords
- alloy powder
- feed tank
- die cavity
- earth metal
- rare
- 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
Links
- 239000000843 powder Substances 0.000 title claims abstract description 225
- 239000000956 alloy Substances 0.000 title claims abstract description 184
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 184
- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 67
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims description 35
- 239000011261 inert gas Substances 0.000 claims abstract description 21
- 239000011347 resin Substances 0.000 claims abstract description 6
- 229920005989 resin Polymers 0.000 claims abstract description 6
- 239000000314 lubricant Substances 0.000 claims description 12
- 238000005266 casting Methods 0.000 claims description 8
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 5
- 229910052731 fluorine Inorganic materials 0.000 claims description 5
- 239000011737 fluorine Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 206010061218 Inflammation Diseases 0.000 abstract 1
- 230000004054 inflammatory process Effects 0.000 abstract 1
- 239000000758 substrate Substances 0.000 description 15
- 239000012298 atmosphere Substances 0.000 description 10
- 238000005245 sintering Methods 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- 208000002925 dental caries Diseases 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- 239000002253 acid Substances 0.000 description 5
- 125000001931 aliphatic group Chemical group 0.000 description 5
- 150000002148 esters Chemical class 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- NUKZAGXMHTUAFE-UHFFFAOYSA-N methyl hexanoate Chemical group CCCCCC(=O)OC NUKZAGXMHTUAFE-UHFFFAOYSA-N 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- -1 aliphatic ester Chemical class 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- JGHZJRVDZXSNKQ-UHFFFAOYSA-N methyl octanoate Chemical group CCCCCCCC(=O)OC JGHZJRVDZXSNKQ-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000004702 methyl esters Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 230000001915 proofreading effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/30—Feeding material to presses
- B30B15/302—Feeding material in particulate or plastic state to moulding presses
- B30B15/304—Feeding material in particulate or plastic state to moulding presses by using feed frames or shoes with relative movement with regard to the mould or moulds
-
- 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
- B22F3/004—Filling molds with powder
-
- 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
-
- 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
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
-
- 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
-
- 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
-
- 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
- H01F41/0266—Moulding; Pressing
Abstract
Description
Claims (22)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP377146/1998 | 1998-12-28 | ||
JP37714698 | 1998-12-28 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB021305846A Division CN1310728C (zh) | 1998-12-28 | 1999-12-28 | 稀土金属基合金粉末的供料方法及装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1258597A CN1258597A (zh) | 2000-07-05 |
CN1101750C true CN1101750C (zh) | 2003-02-19 |
Family
ID=18508330
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB021305846A Expired - Lifetime CN1310728C (zh) | 1998-12-28 | 1999-12-28 | 稀土金属基合金粉末的供料方法及装置 |
CN99127091A Expired - Lifetime CN1101750C (zh) | 1998-12-28 | 1999-12-28 | 稀土金属基合金粉末的供料方法及装置 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB021305846A Expired - Lifetime CN1310728C (zh) | 1998-12-28 | 1999-12-28 | 稀土金属基合金粉末的供料方法及装置 |
Country Status (4)
Country | Link |
---|---|
US (3) | US6299832B1 (zh) |
EP (2) | EP1020285B1 (zh) |
CN (2) | CN1310728C (zh) |
DE (2) | DE69931133T2 (zh) |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69931133T2 (de) * | 1998-12-28 | 2006-11-23 | Neomax Co., Ltd., Osaka | Verfahren und Vorrichtung zum Einführen von Seltenerd-Legierungspuder |
CN1162235C (zh) | 2000-03-28 | 2004-08-18 | 住友特殊金属株式会社 | 粉体压制装置及稀土合金磁性粉末成型体的制作方法 |
US6511631B2 (en) * | 2000-04-21 | 2003-01-28 | Sumitomo Special Metals Co., Ltd. | Powder compacting apparatus and method of producing a rare-earth magnet using the same |
US6649124B2 (en) * | 2000-07-17 | 2003-11-18 | Sumitomo Special Metals Co., Ltd. | Powder pressing apparatus and powder pressing method |
US6656416B2 (en) * | 2000-09-12 | 2003-12-02 | Sumitomo Special Metals Co., Ltd. | Powder feeding apparatus, pressing apparatus using the same, powder feeding method and sintered magnet manufacturing method |
JP4134721B2 (ja) | 2000-11-06 | 2008-08-20 | 日立金属株式会社 | 粉末プレス成形方法および粉末プレス成形装置ならびに希土類磁石の製造方法 |
JP4698867B2 (ja) | 2001-03-29 | 2011-06-08 | 日立金属株式会社 | R−Fe−B系合金の造粒粉の製造方法およびR−Fe−B系合金焼結体の製造方法 |
CA2445514C (en) * | 2001-04-27 | 2008-10-21 | Toyota Jidosha Kabushiki Kaisha | Process for filling multi-powder and apparatus for filling multi-powder and process for forming multi-powder and apparatus for forming multi-powder |
US6808089B2 (en) * | 2001-07-30 | 2004-10-26 | Kobe Steel, Ltd. | Powder filling method and powder filling apparatus |
JP4134616B2 (ja) | 2001-10-02 | 2008-08-20 | 日立金属株式会社 | プレス装置および磁石の製造方法 |
CN1261260C (zh) | 2001-11-28 | 2006-06-28 | 株式会社新王磁材 | 稀土类合金造粒粉的制法及稀土类合金烧结体的制法 |
US7862831B2 (en) * | 2002-10-09 | 2011-01-04 | Synthasome, Inc. | Method and material for enhanced tissue-biomaterial integration |
GB0322358D0 (en) * | 2003-09-24 | 2003-10-22 | Bioprogress Technology Ltd | Improvements in powder compaction and enrobing |
JP5300265B2 (ja) | 2004-12-07 | 2013-09-25 | ザ ユニバーシティー オブ クイーンズランド | 水素吸蔵のためのマグネシウム合金 |
EP1925442A1 (de) * | 2006-11-24 | 2008-05-28 | Abbott GmbH & Co. KG | Hochleistungs-Rotationsumlauf-Form-Verfahren und -Vorrichtung |
EP1925441A1 (de) | 2006-11-24 | 2008-05-28 | Abbott GmbH & Co. KG | Vorrichtung und Verfahren zum Bilden von Formlingen aus einer formbaren Masse |
US7935363B2 (en) * | 2006-12-12 | 2011-05-03 | Synthasome, Inc. | Composite material for tissue repair |
JP5173208B2 (ja) * | 2007-02-15 | 2013-04-03 | ニチハ株式会社 | 無機質焼成体の製造方法 |
CN101200122B (zh) * | 2007-08-27 | 2012-12-12 | 邵中民 | 粉末成型机的送料装置 |
JP5308023B2 (ja) * | 2007-12-28 | 2013-10-09 | インターメタリックス株式会社 | 焼結磁石製造装置 |
JP4798185B2 (ja) * | 2008-08-05 | 2011-10-19 | パナソニック電工株式会社 | 積層造形装置 |
EP2218514B1 (de) * | 2009-02-09 | 2017-04-26 | J. Wagner AG | Beschichtungspulver-Versorgungs-vorrichtung |
US9597430B2 (en) * | 2009-07-31 | 2017-03-21 | Synthasome, Inc. | Synthetic structure for soft tissue repair |
DE102009053570B4 (de) * | 2009-10-19 | 2014-09-11 | Dr. Fritsch Sondermaschinen Gmbh | Kaltpresse und Verfahren zur Herstellung von Grünlingen |
JP2012181182A (ja) | 2011-02-09 | 2012-09-20 | Jfe Steel Corp | 金属粉末の見掛密度測定方法および測定装置、混合粉末の製造方法および製造装置、ならびに粉末成形体の製造方法および製造装置 |
ITVI20110076A1 (it) * | 2011-04-01 | 2012-10-02 | Ieco Keeps On Improving S R L | Macchina per la formatura di barre metalliche |
CN102431200B (zh) * | 2011-12-14 | 2014-09-10 | 瑞安市永明电工合金厂 | 一种用于加工手机按键的专用加工设备 |
CN102642325A (zh) * | 2012-05-10 | 2012-08-22 | 苏州喜福瑞农业科技有限公司 | 一种压模机手动推拉手柄 |
CN103071790B (zh) * | 2012-12-31 | 2014-12-17 | 宁波百琪达自动化设备有限公司 | 一种稀土永磁合金粉称粉倒粉装置 |
CN103521710B (zh) * | 2013-10-13 | 2016-04-13 | 左享兰 | 颗粒加注器 |
CN103894604B (zh) * | 2013-11-27 | 2016-01-20 | 南通国谊锻压机床有限公司 | 一种粉末制品加料装置 |
CN104260410B (zh) * | 2014-08-13 | 2016-01-20 | 重庆智博粉末冶金有限公司 | 干粉自动成型液压机双层座圈自动压制送粉机构 |
CN107088656B (zh) * | 2016-02-18 | 2019-06-28 | 大同特殊钢株式会社 | 粉末填充装置、烧结磁体制造设备和烧结磁体制造方法 |
CN108454159A (zh) * | 2018-04-23 | 2018-08-28 | 宁波精达成形装备股份有限公司 | 一种粉末成形机的送粉装置 |
CN111974988B (zh) * | 2020-07-10 | 2022-12-09 | 瑞声科技(南京)有限公司 | 用于制备薄片磁体的填充装置及填充方法 |
CN113771274B (zh) * | 2021-11-10 | 2022-03-08 | 成都佳驰电子科技股份有限公司 | 一种低成本磁性吸波防水垫圈制备装置及方法 |
CN114543523B (zh) * | 2022-01-19 | 2023-10-24 | 福建华清电子材料科技有限公司 | 精准控制氮气供应的氮化铝粉末制备石墨炉 |
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DE4014266A1 (de) * | 1990-05-04 | 1991-11-07 | High End Metals Corp | Permanentmagnet und verfahren zur herstellung desselben |
JPH06136403A (ja) * | 1992-10-26 | 1994-05-17 | Kobe Steel Ltd | 成形型への粉体供給装置 |
JPH08130142A (ja) * | 1994-11-01 | 1996-05-21 | Hitachi Metals Ltd | 希土類磁石の製造方法 |
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DE2328699C2 (de) | 1973-06-06 | 1975-07-10 | Jurid Werke Gmbh, 2056 Glinde | Einrichtung zum Füllen von Pulverpreßformen |
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JP2638139B2 (ja) | 1988-10-14 | 1997-08-06 | 三菱マテリアル株式会社 | 粉末成形における均一充填装置 |
JPH0637047B2 (ja) * | 1989-08-10 | 1994-05-18 | 株式会社三石深井鐵工所 | 粉末成形機の秤量式原料供給装置 |
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EP0488334B1 (en) * | 1990-11-30 | 1996-05-15 | Intermetallics Co., Ltd. | Method and apparatus for producing a permanent magnet by forming a green and sintered compact |
JPH0625707A (ja) | 1992-02-05 | 1994-02-01 | Mitsubishi Materials Corp | 粉末成形における均一充填装置 |
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US5900328A (en) * | 1996-10-28 | 1999-05-04 | Eastman Kodak Company | Materials transporting element |
DE69931133T2 (de) * | 1998-12-28 | 2006-11-23 | Neomax Co., Ltd., Osaka | Verfahren und Vorrichtung zum Einführen von Seltenerd-Legierungspuder |
-
1999
- 1999-12-22 DE DE69931133T patent/DE69931133T2/de not_active Expired - Lifetime
- 1999-12-22 EP EP99125669A patent/EP1020285B1/en not_active Expired - Lifetime
- 1999-12-22 DE DE69937584T patent/DE69937584T2/de not_active Expired - Lifetime
- 1999-12-22 EP EP04028599A patent/EP1512526B1/en not_active Expired - Lifetime
- 1999-12-27 US US09/472,247 patent/US6299832B1/en not_active Expired - Lifetime
- 1999-12-28 CN CNB021305846A patent/CN1310728C/zh not_active Expired - Lifetime
- 1999-12-28 CN CN99127091A patent/CN1101750C/zh not_active Expired - Lifetime
-
2000
- 2000-09-26 US US09/669,576 patent/US6481993B1/en not_active Expired - Lifetime
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2002
- 2002-08-06 US US10/212,091 patent/US6779995B2/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US4201530A (en) * | 1977-09-16 | 1980-05-06 | Bucher-Guyer Ag. | Arrangement for uniform filling of a mold cavity |
DE4014266A1 (de) * | 1990-05-04 | 1991-11-07 | High End Metals Corp | Permanentmagnet und verfahren zur herstellung desselben |
JPH06136403A (ja) * | 1992-10-26 | 1994-05-17 | Kobe Steel Ltd | 成形型への粉体供給装置 |
JPH08130142A (ja) * | 1994-11-01 | 1996-05-21 | Hitachi Metals Ltd | 希土類磁石の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
EP1020285A2 (en) | 2000-07-19 |
EP1020285B1 (en) | 2006-05-03 |
CN1310728C (zh) | 2007-04-18 |
CN1258597A (zh) | 2000-07-05 |
EP1512526A3 (en) | 2005-03-23 |
CN1431071A (zh) | 2003-07-23 |
DE69937584T2 (de) | 2008-09-18 |
EP1512526A2 (en) | 2005-03-09 |
US6779995B2 (en) | 2004-08-24 |
DE69937584D1 (de) | 2007-12-27 |
DE69931133D1 (de) | 2006-06-08 |
US6481993B1 (en) | 2002-11-19 |
EP1512526B1 (en) | 2007-11-14 |
DE69931133T2 (de) | 2006-11-23 |
US20020185793A1 (en) | 2002-12-12 |
EP1020285A3 (en) | 2000-12-06 |
US6299832B1 (en) | 2001-10-09 |
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