EP1514282B1 - Matiere composite en poudre magnetique douce, ses procedes de production et d'utilisation - Google Patents

Matiere composite en poudre magnetique douce, ses procedes de production et d'utilisation Download PDF

Info

Publication number
EP1514282B1
EP1514282B1 EP03704253A EP03704253A EP1514282B1 EP 1514282 B1 EP1514282 B1 EP 1514282B1 EP 03704253 A EP03704253 A EP 03704253A EP 03704253 A EP03704253 A EP 03704253A EP 1514282 B1 EP1514282 B1 EP 1514282B1
Authority
EP
European Patent Office
Prior art keywords
powder
soft
composite material
starting mixture
magnetic powder
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
EP03704253A
Other languages
German (de)
English (en)
Other versions
EP1514282A1 (fr
Inventor
Adnan Okumus
Waldemar Draxler
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1514282A1 publication Critical patent/EP1514282A1/fr
Application granted granted Critical
Publication of EP1514282B1 publication Critical patent/EP1514282B1/fr
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
    • 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
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing 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
    • H01F1/12—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
    • H01F1/33—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 mixtures of metallic and non-metallic particles; metallic particles having oxide skin

Definitions

  • the invention relates to a soft magnetic powder composite material, a method for producing such a material and its use according to the preamble of the independent claims.
  • a sintered soft magnetic composite and a method for its preparation in which forms in a starting mixture of a soft magnetic composite after heat treatment, a ferromagnetic starting component as the main component and a starting ferrite component as a minor component.
  • the second starting component forms a grain boundary phase after the heat treatment of the starting mixture to the composite.
  • the first starting component is for example a pure iron powder or a phosphated iron powder
  • the second starting component for example a ferrite powder, in particular a soft ferrite powder such as MnZn ferrite or NiZn ferrite.
  • the proportion of iron powder in the starting mixture is 95 to 99 weight percent, the proportion of ferrite powder 1 to 25 weight percent.
  • Object of the present invention was to provide a soft magnetic powder composite material having the highest possible magnetic saturation polarization and magnetic permeability in combination with the highest possible specific electrical resistance, and in particular the properties of the composite according to DE 199 60 095 A1 improved.
  • the soft magnetic powder composite according to the invention has the advantage over the prior art that it has a magnetic saturation polarization of more than 1.85 Tesla, in particular 1.90 Tesla to 2.05 Tesla, and that it is one over the prior art has significantly increased specific electrical resistance of more than 1 ⁇ m, in particular from 5 ⁇ m to 15 ⁇ m. As a rule, the specific electrical resistance is about 10 ⁇ m.
  • the soft magnetic powder composite according to the invention has a bending strength of more than 120 MPa, measured on cylindrical samples.
  • the edge rupture strength of components made of this material in the form of Switzerland Gurgnettöpfen for injectors is over 45 kN, and the resulting soft magnetic powder composite material is also temperature resistant to at least 400 ° C and resistant to fuel. In this respect, it is very well suited to the production of fast-switching solenoid valves, as they are needed in the bieseleinspritzung in motor vehicle engines.
  • the inventive method for producing the soft magnetic powder material is advantageous that the pressing by adding a pressing aid to the starting mixture, such as a Microwachs, can be facilitated, and that the properties of the powder composite obtained very easily on the gas atmosphere and the temperature program during debindering or the heat treatment can be adjusted.
  • a pressing aid such as a Microwachs
  • the soft ferrite powder used is a MnZn ferrite powder, a NiZn ferrite powder or a mixture of both powders.
  • the pure iron powder used, iron alloy powder or the phosphated iron powder is preferably used more advantageously have an average grain size of the powder particles between 30 ⁇ m and 150 ⁇ m, while the grain size of the inserted Soft ferrite powder, on the other hand, is advantageously significantly smaller and has an average of less than 20 ⁇ m.
  • the average particle size of the soft ferrite powder particles used is preferably less than 5 ⁇ m, in particular less than 1 ⁇ m.
  • the starting material is a starting mixture consisting of a pure iron powder or a phosphated iron powder and a soft ferrite powder.
  • iron alloy powders such as FeCr powder or FeCo powder may also be used.
  • Phosphated iron powder is preferably used, since it achieves the best electrical properties of the powder composite.
  • the starting mixture may also be admixed with a pressing aid, such as a microwax, which is removed again in the course of a subsequent heat treatment of the starting mixture for the production of the soft magnetic powder composite material.
  • a pressing aid such as a microwax
  • the proportion of the pressing aid in the starting mixture is 0% by mass to a maximum of 0.8% by mass.
  • the starting mixture consists of at least 99.4 mass% of a pure iron powder or a phosphated iron powder and 0.1 mass% to 0.6 mass% of a soft ferrite powder.
  • the proportion of the pure iron powder or of the phosphated iron powder is preferably more than 99.5% by mass, in particular 99.7% by mass to 99.8% by mass.
  • the proportion of the soft ferrite powder is preferably less than 0.5 mass%, in particular 0.1 mass% to 0.3 mass%.
  • the soft ferrite powder used is preferably a manganese-zinc ferrite (MnZnOFe 2 O 3 ) or a nickel-zinc ferrite (NiZnO-Fe 2 O 3 ) or a mixture of both powders. Preference is given to using phosphated iron powder or phosphated pure iron powder and one of these two soft-ferrite powders.
  • the pure iron powder or the phosphated iron powder has an average particle size of the powder particles of 50 .mu.m to 100 .mu.m.
  • the particle size of the soft-ferrite powder used is preferably well below 20 ⁇ m, preferably below 5 ⁇ m. For example, it is in the range between 0.5 .mu.m to 2 .mu.m, in particular 1 .mu.m.
  • the composition of the starting mixture which essentially consists of the pure iron powder or the phosphated iron powder and the soft ferrite powder, depending on the intended use of the material obtained on a variation of the composition of the material, on the one hand more emphasis on the highest possible magnetic Saturation polarization and the highest possible magnetic permeability, ie ⁇ max greater than 800, or on the other hand more weight can be placed on the highest possible specific electrical resistance.
  • the above-described powders are first prepared as described in the form of a starting mixture, this is mixed and then compacted by means of a press under elevated pressure and brought into the desired shape. Subsequently, the green bodies thus produced are debinded in a furnace in an inert gas atmosphere, for example a nitrogen atmosphere, or an oxygen-containing gas atmosphere.
  • an inert gas atmosphere for example a nitrogen atmosphere, or an oxygen-containing gas atmosphere.
  • the compressed starting mixture is heated in the oven to a temperature of 400 ° C to 500 ° C and held there for a period of 10 minutes to 1 hour.
  • the temperature during debinding depends mainly on the pressing aid used, ie the micro wax used. In this respect, it may also be below the explained 400 ° C, for example in the range of 220 ° C to 300 ° C.
  • a further heat treatment of the debindered, compressed starting mixture takes place in an oxidizing gas atmosphere at a temperature of 410 ° C. to 500 ° C. in an oven.
  • the compact is heated in the oven to this temperature and held there for a period of 20 minutes to 400 minutes, for example, 200 minutes.
  • the gas atmosphere in the furnace is, for example, air.
  • a soft magnetic powder composite is obtained in which the soft ferrite powder used is at least substantially in the grain boundary phase, i. the soft ferrite powder particles surround the iron powder particles used in the powder composite.
  • the pressing aid used during the manufacturing process facilitates the compaction and shaping of the starting mixture during pressing.
  • the densification of the starting mixture in the die under elevated pressure is preferably carried out by uniaxial pressing at a pressure of preferably 500 MPa to 1000 MPa.
  • magnetic valves produced with the soft magnetic powder composite according to the invention under general conditions of use in the diesel injection of motor vehicles are unrestricted fuel and temperature resistant. Furthermore, they have a very good mechanical strength both in terms of bending strength and edge breakage resistance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Soft Magnetic Materials (AREA)
  • Powder Metallurgy (AREA)

Claims (13)

  1. Matériau composite magnétique doux en poudre constitué d'au moins 99,4 % en masse d'une poudre de fer pur, d'une poudre de fer phosphaté ou d'une poudre d'alliage de fer et de 0,05% en masse à 0,6 % en masse d'une poudre de ferrite douce.
  2. Matériau composite magnétique doux en poudre selon la revendication 1, caractérisé en ce que la poudre de ferrite douce est une poudre de ferrite au MnZn, une poudre de ferrite au NiZn ou un mélange de ces poudres.
  3. Matériau composite magnétique doux en poudre selon les revendications 1 ou 2, caractérisé en ce que la poudre de fer pur ou la poudre de fer phosphaté présente des particules d'une granulométrie comprise entre 30 µm et 150 µm.
  4. Matériau composite magnétique doux en poudre selon les revendications 1 ou 2, caractérisé en ce que la poudre de ferrite douce présente des particules d'une granulométrie moyenne inférieure à 20 µm.
  5. Matériau composite magnétique doux en poudre selon la revendication 4, caractérisé en ce que la granulométrie moyenne des particules de poudre est inférieure à 5 µm et en particulier inférieure à 1 µm.
  6. Matériau composite magnétique doux en poudre selon l'une des revendications précédentes, caractérisé en ce qu'il présente une polarisation de saturation supérieure à 1,85 Tesla et en particulier de 1,90 à 2,05 Tesla.
  7. Matériau composite magnétique doux en poudre selon l'une des revendications précédentes, caractérisé en ce qu'il présente une résistance électrique spécifique supérieure à 1 µΩ.m et en particulier de 5 µΩ.m à 15 µΩ.m.
  8. Procédé de fabrication d'un matériau composite magnétique doux en poudre selon l'une des revendications précédentes, qui présente les étapes suivantes :
    a) préparation d'un mélange initial d'une poudre de fer pur, d'une poudre de fer phosphaté ou d'une poudre d'alliage de fer et d'une poudre de ferrite douce,
    b) homogénéisation du mélange initial,
    c) compactage du mélange initial dans une presse sous haute pression,
    d) enlèvement du liant du mélange de départ compacté dans une atmosphère de gaz inerte ou dans une atmosphère de gaz contenant de l'oxygène et
    e) traitement thermique du mélange de départ compacté, dans une atmosphère de gaz oxydante et à une température de 410°C à 500°C.
  9. Procédé selon la revendication 8, caractérisé en ce qu'avant le mélange, un adjuvant de compression, en particulier une microcire, est ajouté au mélange de départ.
  10. Procédé selon la revendication 8, caractérisé en ce que la déliaison s'effectue à une température de 400°C à 520°C et pendant une durée de 10 minutes à 1 h.
  11. Procédé selon la revendication 8, caractérisé en ce que le traitement thermique est conduit pendant une durée de 20 min à 400 min.
  12. Procédé selon les revendications 8 ou 10,
    caractérisé en ce que l'enlèvement du liant est réalisé dans une atmosphère d'azote ou dans un mélange d'oxygène et d'azote, qui contient en particulier 5 % en volume à 30 % en volume d'oxygène, ou à l'air, pendant une durée de 10 min à 70 min.
  13. Utilisation d'un matériau composite magnétique doux en poudre selon l'une des revendications précédentes dans des soupapes magnétiques à commutation rapide, en particulier pour l'injection de diesel dans les moteurs à combustion interne.
EP03704253A 2002-06-06 2003-01-27 Matiere composite en poudre magnetique douce, ses procedes de production et d'utilisation Expired - Lifetime EP1514282B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10225154 2002-06-06
DE10225154A DE10225154B4 (de) 2002-06-06 2002-06-06 Weichmagnetischer Pulververbundwerkstoff, Verfahren zu dessen Herstellung und dessen Verwendung
PCT/DE2003/000211 WO2003105161A1 (fr) 2002-06-06 2003-01-27 Matiere composite en poudre magnetique douce, ses procedes de production et d'utilisation

Publications (2)

Publication Number Publication Date
EP1514282A1 EP1514282A1 (fr) 2005-03-16
EP1514282B1 true EP1514282B1 (fr) 2009-04-15

Family

ID=29723091

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03704253A Expired - Lifetime EP1514282B1 (fr) 2002-06-06 2003-01-27 Matiere composite en poudre magnetique douce, ses procedes de production et d'utilisation

Country Status (8)

Country Link
US (1) US7686894B2 (fr)
EP (1) EP1514282B1 (fr)
JP (1) JP2005536036A (fr)
CN (1) CN1331169C (fr)
AT (1) ATE429020T1 (fr)
AU (1) AU2003206641A1 (fr)
DE (2) DE10225154B4 (fr)
WO (1) WO2003105161A1 (fr)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100380537C (zh) * 2005-05-27 2008-04-09 罗计添 一种软磁复合材料及由其制造导磁构件的方法
CN100594565C (zh) * 2008-01-25 2010-03-17 华中科技大学 一种铁氧体纳米颗粒嵌入反铁磁氧化物母体的复合材料及制备方法
CN101777407B (zh) * 2010-03-26 2012-12-26 北京科源科金属材料有限公司 一种改进非晶粉芯导磁率及损耗的方法及依据此方法制备的复合粉芯
CN102528024B (zh) * 2012-01-20 2013-06-26 钢铁研究总院 一种软磁复合材料用绝缘铁粉的制备方法
CN103664159A (zh) * 2012-09-26 2014-03-26 比亚迪股份有限公司 一种镍锌铁氧体软磁材料及其制备方法
TWI518713B (zh) * 2012-12-06 2016-01-21 China Steel Corp Soft magnetic powder and its making method and composite material sheet body which can suppress electromagnetic interference
DE102013200229B4 (de) 2013-01-10 2024-06-06 Robert Bosch Gmbh Verfahren zum Herstellen eines weichmagnetischen Verbundwerkstoffs
DE102013215520A1 (de) 2013-08-07 2015-02-12 Robert Bosch Gmbh Weichmagnetischer Metallpulver-Verbundwerkstoff und Verfahren zur Herstellung eines solchen
CN103426584B (zh) * 2013-09-11 2016-04-13 中国计量学院 一种铁氧体复合磁粉芯及其制备方法
WO2015100244A1 (fr) * 2013-12-26 2015-07-02 Drexel University Composites a aimantation temporaire pour moteurs electriques
CN104332266A (zh) * 2014-10-30 2015-02-04 安徽首文高新材料有限公司 一种耐高温铁粉芯的制备方法
DE102015209970A1 (de) 2015-05-29 2016-12-01 Robert Bosch Gmbh Weichmagnetischer Pulververbundwerkstoff und Verfahren zu seiner Herstellung
CN105565392B (zh) * 2015-12-23 2017-07-14 苏州冠达磁业有限公司 一种高磁导率镍锌铁软磁体及其制备方法
JP6459986B2 (ja) * 2016-01-08 2019-01-30 株式会社村田製作所 金属磁性粉含有シート、インダクタの製造方法及びインダクタ
EP3354437A1 (fr) * 2017-01-25 2018-08-01 Continental Automotive GmbH Soupape de commutation électromagnétique et pompe haute pression à carburant
KR102311667B1 (ko) 2017-07-26 2021-10-13 현대자동차주식회사 Fe-Si 연자성 분말을 이용한 연자성체 제조방법
CN107818856A (zh) * 2017-10-31 2018-03-20 桂林市漓江机电制造有限公司 一种软磁粉末冶金材料及其制造方法
CN107818855A (zh) * 2017-10-31 2018-03-20 桂林市漓江机电制造有限公司 一种细晶粒软磁体复合材料及其制造方法
CN107799261A (zh) * 2017-10-31 2018-03-13 桂林市漓江机电制造有限公司 一种软磁体复合材料及其制造方法
CN111243813B (zh) * 2020-03-12 2021-10-15 钢铁研究总院 高电阻率钕铁硼永磁合金及其制备方法
EP3937347A1 (fr) * 2020-07-08 2022-01-12 Siemens Aktiengesellschaft Couche de matière pour un paquet de tôles d'une machine électrique
KR20220167986A (ko) 2021-06-15 2022-12-22 현대자동차주식회사 철계 혼합분말 제조장치 및 제조방법
CN113658768A (zh) * 2021-08-27 2021-11-16 西安交通大学 稳定磁导率低损耗FeSiAl/MnZn铁氧体软磁复合磁粉芯及其制备方法

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR984544A (fr) * 1949-02-11 1951-07-06 Telecommunications Sa Noyau en poudre magnétique comprimée
GB805710A (en) 1955-05-31 1958-12-10 Siemens Ag Improvements in or relating to magnetically soft sintered bodies
GB805110A (en) * 1956-05-22 1958-11-26 Distillers Co Yeast Ltd Process for the oxidation of paraffins
JPS5391397A (en) * 1977-01-21 1978-08-11 Hitachi Ltd Material with high permeability
JPS6413705A (en) * 1987-07-08 1989-01-18 Matsushita Electric Ind Co Ltd Compound magnetic material of high flux density
EP0406580B1 (fr) * 1989-06-09 1996-09-04 Matsushita Electric Industrial Co., Ltd. Matériau composite et son procédé de préparation
JPH03180434A (ja) 1989-12-09 1991-08-06 Fuji Elelctrochem Co Ltd サーメット型フェライトの製造方法
JPH04352403A (ja) 1991-05-30 1992-12-07 Tokin Corp 複合型圧粉磁芯
JPH05251224A (ja) * 1992-03-09 1993-09-28 Sony Corp 複合磁性材料
JPH05267036A (ja) * 1992-03-23 1993-10-15 Sony Corp 複合磁性材料
JP3180434B2 (ja) 1992-04-28 2001-06-25 ダイキン工業株式会社 フィン・チューブ型熱交換器
JPH06236808A (ja) * 1993-02-10 1994-08-23 Kawasaki Steel Corp 複合磁性材料およびその製造方法
JPH09134522A (ja) * 1995-11-08 1997-05-20 Kao Corp 磁気記録媒体
US5796018A (en) * 1997-01-29 1998-08-18 Procedyne Corp. Process for coating iron particles with phosphorus and forming compacted articles
JPH111702A (ja) * 1997-06-11 1999-01-06 Kawasaki Steel Corp 鉄基金属−フェライト酸化物複合粉末の製造方法
CN1324783C (zh) 1997-10-17 2007-07-04 精工爱普生株式会社 电机叠片铁心、其制造方法、电机以及喷墨记录装置
US5982073A (en) 1997-12-16 1999-11-09 Materials Innovation, Inc. Low core loss, well-bonded soft magnetic parts
DE19960095A1 (de) 1999-12-14 2001-07-05 Bosch Gmbh Robert Gesinterter weichmagnetischer Verbundwerkstoff und Verfahren zu dessen Herstellung
DE10031923A1 (de) * 2000-06-30 2002-01-17 Bosch Gmbh Robert Weichmagnetischer Werkstoff mit heterogenem Gefügebau und Verfahren zu dessen Herstellung
JP4352403B2 (ja) 2004-09-14 2009-10-28 横河電機株式会社 Ｘｙステージ

Also Published As

Publication number Publication date
US7686894B2 (en) 2010-03-30
ATE429020T1 (de) 2009-05-15
DE10225154A1 (de) 2004-01-15
JP2005536036A (ja) 2005-11-24
US20050217759A1 (en) 2005-10-06
WO2003105161A1 (fr) 2003-12-18
DE10225154B4 (de) 2012-06-06
CN1331169C (zh) 2007-08-08
AU2003206641A1 (en) 2003-12-22
CN1656575A (zh) 2005-08-17
EP1514282A1 (fr) 2005-03-16
DE50311421D1 (de) 2009-05-28

Similar Documents

Publication Publication Date Title
EP1514282B1 (fr) Matiere composite en poudre magnetique douce, ses procedes de production et d'utilisation
EP1444706A1 (fr) Composant inductif et son procede de production
EP1393330A1 (fr) Composant inductif et procede de fabrication associe
DE112016006051T5 (de) Pulver für Massekerne, Verfahren zum Herstellen desselben, Massekern und Verfahren zum Herstellen des Massekerns
DE112012003478T5 (de) Verfahren zur herstellung von magnetischen grünlingen, magnetischer grünling und sinterkörper
DE19960095A1 (de) Gesinterter weichmagnetischer Verbundwerkstoff und Verfahren zu dessen Herstellung
WO2011153573A2 (fr) Élément structural à adhérence métallique réduite
EP1231003B1 (fr) Procédé de fabrication d'un article en un matériau composite magnétiquement doux
EP3357074B1 (fr) Procédé de fabrication d'un aimant permanent
DE102006032520B4 (de) Verfahren zur Herstellung von Magnetkernen, Magnetkern und induktives Bauelement mit einem Magnetkern
WO2001022439A1 (fr) Materiau magnetique doux et son procede de production
WO2014000916A1 (fr) Composant magnétique doux et procédé de production d'un composant de ce type
WO2010066529A1 (fr) Précurseur pour la production de pièces métalliques frittées, procédé de production du précurseur, et production desdites pièces
DE2122977A1 (en) Sintered iron - silicon switching magnet - having superior mech strength - prepn
WO2016008610A1 (fr) Procédé de production d'un corps de matériau anisotrope magnétique doux et utilisation de ce dernier
EP2289082B1 (fr) Procédé de fabrication d'un corps métallique moulé magnétisable
EP1148520B1 (fr) Matériau magnétiquement doux et son procédé de fabrication
AT511919B1 (de) Verfahren zur herstellung eines sinterbauteils
DE102012216052A1 (de) Sinterpressteil und Verfahren zum Herstellen eines solchen
DE102015206396A1 (de) Verfahren zum Herstellen eines Verbundwerkstoff-Bauteils
WO2017080935A1 (fr) Procédé de fabrication d'un matériau magnétique et machine électrique
DE102013200229B4 (de) Verfahren zum Herstellen eines weichmagnetischen Verbundwerkstoffs
DE4213704A1 (de) Verfahren zur Herstellung von Permanentmagneten auf der Basis von Seltenerdmetallen
DD286987A5 (de) Verfahren zur herstellung von sintermagneten

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20050107

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 50311421

Country of ref document: DE

Date of ref document: 20090528

Kind code of ref document: P

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090915

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090726

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090415

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090415

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090715

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090415

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090415

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090415

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090415

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090415

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090415

26N No opposition filed

Effective date: 20100118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090715

BERE Be: lapsed

Owner name: ROBERT BOSCH G.M.B.H.

Effective date: 20100131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100131

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100131

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100131

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090716

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090415

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100127

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090415

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100127

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091016

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090415

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20140124

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20140123

Year of fee payment: 12

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20150127

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150127

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20150930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150202

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20160322

Year of fee payment: 14

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50311421

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170801