WO2021185398A1 - Procédé destiné à produire un ensemble de couches à partir de métal en feuilles électriques, ensemble de couches ainsi produit, rotor ou stator et moteur électrique - Google Patents

Procédé destiné à produire un ensemble de couches à partir de métal en feuilles électriques, ensemble de couches ainsi produit, rotor ou stator et moteur électrique Download PDF

Info

Publication number
WO2021185398A1
WO2021185398A1 PCT/DE2021/100021 DE2021100021W WO2021185398A1 WO 2021185398 A1 WO2021185398 A1 WO 2021185398A1 DE 2021100021 W DE2021100021 W DE 2021100021W WO 2021185398 A1 WO2021185398 A1 WO 2021185398A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrical
electric motor
electrical steel
sheet metal
layer assembly
Prior art date
Application number
PCT/DE2021/100021
Other languages
German (de)
English (en)
Inventor
Peter Gebauer
Lukas KNEISEL
Peter Mehnert
Original Assignee
Schaeffler Technologies AG & Co. KG
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 Schaeffler Technologies AG & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Publication of WO2021185398A1 publication Critical patent/WO2021185398A1/fr

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
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/60—Treatment of workpieces or articles after build-up
    • B22F10/64—Treatment of workpieces or articles after build-up by thermal means
    • 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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
    • B22F1/107—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material containing organic material comprising solvents, e.g. for slip casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00—Processes of additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00—Products made by additive manufacturing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/02—Details of the magnetic circuit characterised by the magnetic material
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • 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
    • B22F2998/10—Processes characterised by the sequence of their steps
    • 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
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Definitions

  • the invention relates to a method for producing a layer arrangement from electrical sheet metal and a layer arrangement produced accordingly, in particular for forming an active part, that is to say stator or rotor, of an electric motor.
  • the invention also relates to such a rotor or stator and an electric motor.
  • Electrical sheet metal for electric motors, generators or transformers is typically made from steel alloyed with silicon and aluminum.
  • electrical sheet metal is a soft magnetic material which is used to manufacture magnetic cores of electrical machines.
  • the magnetic and other requirements for electrical steel reference is made to the standards EN 10106 "Cold-rolled, non-grain-oriented electrical steel and strip in the final annealed state” and EN 10107 "Grain-oriented electrical steel and strip in the final annealed state”.
  • a method for producing silicon steel strip from slabs is disclosed, for example, in DE 2 315 703 A1.
  • slabs are heated to a temperature of more than 1204 ° C. and then rolled out to a thickness in the range from 1.5 to 3.75 mm.
  • the thickness of the strip produced is reduced to 0.50 to 0.75 mm.
  • DE 24 46 509 B1 deals with the use of a steel vakuumbehan delten in the liquid state as electrical steel.
  • the vacuum treated steel contains 0.1 to 4.0% silicon and less than 0.6% aluminum.
  • a decarburizing annealing at a temperature of 750 to 1250 ° C is provided.
  • the documents DE 102018204 298 A1, DE 102018 204 299 A1 and DE 102018 204 300 A1 describe rotors of permanent magnet electrical machines. In the documents mentioned, it is assumed that either the electrical sheets or sintered materials are suitable for the construction of rotors of electrical machines.
  • the winding carrier has, inter alia, a base body and at least two pole teeth.
  • For the production of the basic body electrical sheet or sintered material is proposed.
  • the invention is based on the object of further developing the production of components, namely stators or rotors, of electric motors compared to the cited prior art, both from a physical point of view and from a manufacturing point of view.
  • the invention is based on the consideration that an iron-based alloy, in order to be suitable as a material for an electrical steel sheet, should have the highest possible alloy content of aluminum and silicon.
  • the alloy content is limited by the need to roll the material. If the alloy content is too high, the brittleness increases, so that cracks can form when the strip is cold-rolled.
  • a conceivable approach to make materials with a higher alloy content of aluminum and silicon usable for use in electric motors or other electrical Ma machines is to use the component in question, that is, the active part, which have particularly advantageous magnetic properties and are in particular special by low Magnetization losses should be characterized as a sintered part. In such a case there is no structure of the component as sheet metal.
  • the inventive method according to claim 1 brings together the two concepts customary in the prior art, namely on the one hand the production of a magnetically soft component from a plurality of stacked sheets and on the other hand the primary shaping of such a component as a sintered part, by using sintered parts , soft magnetic sheets in an electrical Ma machine is proposed.
  • the layer arrangement formed by the method according to the invention according to claim 5 comprises a plurality of electrical steel sheets, each designed as sintered sheets, which are electrically insulated from one another.
  • electrical steel sheets By designing the electrical steel sheets as sintered sheets, there are expanded design options compared to strip-shaped starting materials, and in particular a simple near-net-shape production of the layer arrangement is possible. Processing steps that are typical for sheet metal processing, such as punching, can be omitted.
  • each electrical sheet in the layer arrangement has a thickness of not more than 0.2 mm.
  • EP 0 933 984 B1 With regard to the technological background with regard to the production of sintered metal sheets, reference is made to EP 0 933 984 B1. In this case, the production of a sheet on the basis of metal fibers is proposed. In contrast to the method described in EP 0 933 984 B1, no fibrous starting materials are provided for producing the layer arrangement according to the application.
  • the layer arrangement made of electrical steel is produced with the following steps:
  • the electrical steel alloy that is used in the production process can have a composition like that of a conventional electrical steel. In a preferred embodiment, however, an alloy with a particularly high proportion of silicon and aluminum is used, which would not be suitable for processing by rolling.
  • the metallic powder used is preferably formed from an iron alloy containing greater than 6.5% by weight silicon and furthermore aluminum in the range from 1 to 5% by weight.
  • the metallic powder of an iron alloy containing silicon in the range of larger is preferred formed as 6.5 wt% to 10 wt%.
  • Such compositions of the metallic powder used can only be used at all through the use of a generative manufacturing process. As a result, higher magnetic flux densities are achieved than with known electrical steel sheets and the performance of electric motors is significantly increased.
  • the binder which is part of the metal-containing paste, including silicon and aluminum, from which the electrical steel sheet is manufactured by a screen printing and sintering process, is typically an organic solvent. After sintering, the electrical steel sheet must be removed from the base, i.e. the substrate. Depending on the materials used, it may be useful to apply a separating layer to the substrate before screen printing.
  • stator or rotor of an electric motor according to the invention in that it comprises at least one layer arrangement according to the invention.
  • An electric motor according to the invention comprises at least one rotor or stator according to the invention.
  • the electric motor is a synchronous motor or asynchronous motor.
  • Fig. 3 in a schematic sectional view of a work step for the manufacture of the electrical steel position with the help of the screen, 4 shows one formed from several electrical sheets and insulating layers
  • FIG. 5 shows a flow chart for explaining the method for setting the lowering of the
  • An electrical sheet identified as a whole by the reference number 1, is provided for use in a stator or rotor, that is to say, an active part, of an electric motor.
  • the electrical steel sheet 1 is produced in the screen printing process and thus represents a sheet metal only in terms of its outer shape. Sheet metal rolling is not provided. Rather, the electrical sheet 1 is a sintered part, that is, a sintered sheet.
  • the Fier ein of the electrical steel sheet 1 in the screen printing process has the advantage that a near net shape is possible in a simple manner.
  • holes 2, which are located in the electrical sheet 1, are generated directly by the screen printing process.
  • a sieve 3 is used, which has Kontu Ren, which correspond to the end contours of the electrical sheet 1, that is, sheet metal element.
  • a frame of the sieve 3, arbitrarily drawn as a trapezoidal element in the present case, is denoted by 4.
  • panes 6 which are impermeable to screen printing correspond to the shape and position of the bores 2.
  • the sieve 3 is placed on a substrate 7 which is made, for example, of a metallic or a ceramic material. Then, with the aid of a squeegee 8, paste 9 is brushed through the sieve 3 so that the paste 9 covers the intended surface areas of the substrate 7, corresponding to the shape of the sheet metal element 1 to be produced, in the desired layer thickness.
  • the paste 9 is essentially formed from a metal powder, the chemical composition of which corresponds to the desired composition of the sheet metal element 1, and a binder, which enables processing as a paste.
  • the paste 9 can also include other components, such as solvents, dyes and the like.
  • the paste 9 gives far greater freedom than metal alloys for sheet metal, that is, workpieces to be processed by rolling according to the definition. Bending or other deformation of the sheet metal element 1 after production is not provided, or only to a small extent. Due to the given alloy composition, the sheet metal element 1 would not be suitable for a cold rolling process.
  • a layer structure 10 is to be produced, as is shown in detail and schematically in FIG.
  • the insulating layers 11 can be produced in any way, including using the screen printing process.
  • the start of the production process is designated as process step S1.
  • the shaping of the sheet metal element 1 follows as step S2, as illustrated in FIG.
  • step S3 a thermal treatment of the sheet metal element 1 follows, by means of which the binder is removed from the green compact and the metallic components of the sheet metal element 1 are sintered.
  • the sheet metal element 1 produced therewith that is to say electrical sheet metal, has a proportion of silicon and aluminum of more than 7% by weight.
  • the thickness of the electrical steel sheet 1 is a maximum of 0.2 mm.
  • step S4 insulating material is applied to the finished sheet metal element 1, which is converted into the solid, electrically insulating insulating layer 11 by thermal treatment in step S5.
  • the layer thickness of the insulating layer 11 can differ from the thickness of the electrical steel sheet 1.
  • Steps S2 to S5 are repeated until the layer structure 10 has been built up completely.
  • the step S6 denotes the completion of the manufacturing process.
  • the sequence of steps S2 to S5 is not mandatory. In particular, it is possible first of all to prefabricate all electrical steel sheets 1 that are required to produce the layer structure 10 using the screen printing and sintering process and only then to assemble them to form the layer structure 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

L'invention porte sur un procédé destiné à produire un ensemble de couches (10) à partir de métal (1) en feuilles électriques. Un ensemble de couches (10) ainsi produit comprend plusieurs feuilles d'acier électriques qui sont isolées électriquement les unes par rapport aux autres, formées chacune sous forme de feuilles frittées, et produites au moyen d'un procédé de sérigraphie. L'invention porte également sur un rotor ou sur un stator et sur un moteur électrique.
PCT/DE2021/100021 2020-03-17 2021-01-12 Procédé destiné à produire un ensemble de couches à partir de métal en feuilles électriques, ensemble de couches ainsi produit, rotor ou stator et moteur électrique WO2021185398A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102020107201 2020-03-17
DE102020107201.5 2020-03-17
DE102020130988.0 2020-11-24
DE102020130988.0A DE102020130988A1 (de) 2020-03-17 2020-11-24 Verfahren zur Herstellung einer Schichtanordnung aus Elektroblech, danach hergestellte Schichtanordnung, Rotor oder Stator sowie Elektromotor

Publications (1)

Publication Number Publication Date
WO2021185398A1 true WO2021185398A1 (fr) 2021-09-23

Family

ID=77552602

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2021/100021 WO2021185398A1 (fr) 2020-03-17 2021-01-12 Procédé destiné à produire un ensemble de couches à partir de métal en feuilles électriques, ensemble de couches ainsi produit, rotor ou stator et moteur électrique

Country Status (2)

Country Link
DE (1) DE102020130988A1 (fr)
WO (1) WO2021185398A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4257268A1 (fr) * 2022-04-08 2023-10-11 Siemens Aktiengesellschaft Procédé de fabrication d'une tôle aimantée symétrique en rotation, tôle aimantée, paquet de tôles et machine électrique
DE102022205759A1 (de) 2022-06-07 2023-12-07 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein Verfahren zur Herstellung von Elementen für elektrische Arbeitsmaschinen, die mit übereinander angeordneten Schichten aus Eisen oder einer Eisenlegierung mit weichmagnetischen Eigenschaften gebildet sind sowie ein damit hergestelltes Element

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2315703A1 (de) 1972-03-30 1973-12-06 Henke Robert H Verfahren zum erzeugen von siliziumstahlband
DE2446509B1 (de) 1974-09-28 1975-08-07 Hoesch Werke Ag Verwendung eines im fluessigen Zustand vakuumbehandelten Stahls als Elektroband
EP0926688A2 (fr) * 1997-12-25 1999-06-30 Matsushita Electric Industrial Co., Ltd Article composite magnétique et procédé de fabrication utilisant un poudre Fe-Al-Si
EP0933984B1 (fr) 1998-01-30 2004-12-01 Tomoegawa Paper Co., Ltd. Plaque faisant écran aux ondes électromagnétiques
DE19935677B4 (de) 1999-07-29 2005-07-07 Robert Bosch Gmbh Paste für den Siebdruck von elektrischen Strukturen auf Trägersubstraten
DE102005048793A1 (de) 2005-10-12 2007-04-19 Robert Bosch Gmbh Verfahren zur Herstellung eines Wicklungsträgers
WO2013007830A2 (fr) * 2011-07-14 2013-01-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Convertisseur d'énergie électrique et procédé de fabrication dudit convertisseur
US20130076193A1 (en) * 2011-09-28 2013-03-28 Samsung Electro-Mechanics Co., Ltd. Laminated core and fabrication method thereof
US20130162064A1 (en) * 2011-12-22 2013-06-27 Samsung Electro-Mechanics Co., Ltd. Laminated core and method for manufacturing the same
US20130180583A1 (en) 2012-01-17 2013-07-18 E I Du Pont De Nemours And Company Conductive paste for fine-line high-aspect-ratio screen printing in the manufacture of semiconductor devices
EP3051664A1 (fr) * 2015-01-30 2016-08-03 Honeywell International Inc. Noyaux de stator feuilleté à haute température et leurs procédés de fabrication
DE102018204298A1 (de) 2018-03-21 2019-09-26 Zf Friedrichshafen Ag Rotor einer permanentmagneterregten elektrischen Maschine
DE102018204300A1 (de) 2018-03-21 2019-09-26 Zf Friedrichshafen Ag Rotor einer permanentmagneterregten elektrischen Maschine
DE102018204299A1 (de) 2018-03-21 2019-09-26 Zf Friedrichshafen Ag Rotor einer permanentmagneterregten elektrischen Maschine

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2315703A1 (de) 1972-03-30 1973-12-06 Henke Robert H Verfahren zum erzeugen von siliziumstahlband
DE2446509B1 (de) 1974-09-28 1975-08-07 Hoesch Werke Ag Verwendung eines im fluessigen Zustand vakuumbehandelten Stahls als Elektroband
EP0926688A2 (fr) * 1997-12-25 1999-06-30 Matsushita Electric Industrial Co., Ltd Article composite magnétique et procédé de fabrication utilisant un poudre Fe-Al-Si
EP0933984B1 (fr) 1998-01-30 2004-12-01 Tomoegawa Paper Co., Ltd. Plaque faisant écran aux ondes électromagnétiques
DE19935677B4 (de) 1999-07-29 2005-07-07 Robert Bosch Gmbh Paste für den Siebdruck von elektrischen Strukturen auf Trägersubstraten
DE102005048793A1 (de) 2005-10-12 2007-04-19 Robert Bosch Gmbh Verfahren zur Herstellung eines Wicklungsträgers
WO2013007830A2 (fr) * 2011-07-14 2013-01-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Convertisseur d'énergie électrique et procédé de fabrication dudit convertisseur
US20130076193A1 (en) * 2011-09-28 2013-03-28 Samsung Electro-Mechanics Co., Ltd. Laminated core and fabrication method thereof
US20130162064A1 (en) * 2011-12-22 2013-06-27 Samsung Electro-Mechanics Co., Ltd. Laminated core and method for manufacturing the same
US20130180583A1 (en) 2012-01-17 2013-07-18 E I Du Pont De Nemours And Company Conductive paste for fine-line high-aspect-ratio screen printing in the manufacture of semiconductor devices
EP3051664A1 (fr) * 2015-01-30 2016-08-03 Honeywell International Inc. Noyaux de stator feuilleté à haute température et leurs procédés de fabrication
DE102018204298A1 (de) 2018-03-21 2019-09-26 Zf Friedrichshafen Ag Rotor einer permanentmagneterregten elektrischen Maschine
DE102018204300A1 (de) 2018-03-21 2019-09-26 Zf Friedrichshafen Ag Rotor einer permanentmagneterregten elektrischen Maschine
DE102018204299A1 (de) 2018-03-21 2019-09-26 Zf Friedrichshafen Ag Rotor einer permanentmagneterregten elektrischen Maschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
AIKAWA Y ET AL: "Effect of Si and Al Content on Core Loss in Fe-Si-Al Powder Cores", IEEE TRANSACTIONS ON MAGNETICS, IEEE SERVICE CENTER, NEW YORK, NY, US, vol. 40, no. 3, 1 May 2004 (2004-05-01), pages 1691 - 1694, XP011112933, ISSN: 0018-9464, DOI: 10.1109/TMAG.2004.826623 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4257268A1 (fr) * 2022-04-08 2023-10-11 Siemens Aktiengesellschaft Procédé de fabrication d'une tôle aimantée symétrique en rotation, tôle aimantée, paquet de tôles et machine électrique
WO2023194005A1 (fr) * 2022-04-08 2023-10-12 Siemens Aktiengesellschaft Procédé de production d'une feuille magnétique à symétrie de rotation, feuille magnétique, noyau feuilleté et machine électrique
DE102022205759A1 (de) 2022-06-07 2023-12-07 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein Verfahren zur Herstellung von Elementen für elektrische Arbeitsmaschinen, die mit übereinander angeordneten Schichten aus Eisen oder einer Eisenlegierung mit weichmagnetischen Eigenschaften gebildet sind sowie ein damit hergestelltes Element
EP4289530A1 (fr) * 2022-06-07 2023-12-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Procédé de fabrication d'éléments pour machines électriques, constitués de couches superposées de fer ou d'alliage de fer ayant des propriétés magnétiques douces, et élément ainsi fabriqué

Also Published As

Publication number Publication date
DE102020130988A1 (de) 2021-09-23

Similar Documents

Publication Publication Date Title
EP1905047B1 (fr) Procede de fabrication d'un coeur magnetique doux pour un generateur et generateur pourvu d'un coeur de ce type
DE102018106815A1 (de) Verfahren zum einstellen der magnetischen permeabilität von elektrostahl
DE102016119650A1 (de) Verfahren zur Herstellung eines weichmagnetischen Kernmaterials
WO2021185398A1 (fr) Procédé destiné à produire un ensemble de couches à partir de métal en feuilles électriques, ensemble de couches ainsi produit, rotor ou stator et moteur électrique
DE2923519A1 (de) Elektrischer motor mit integralem kondensator
WO2013038020A1 (fr) Bande magnétique de résistance supérieure, à grains non orientés et de polarisation élevée, et procédé de production associe
EP3029692A1 (fr) Paquet de toles composites et son procede de fabrication
DE102019107422A1 (de) Band aus einer Kobalt-Eisen-Legierung, Blechpaket und Verfahren zum Herstellen eines Bands aus einer Kobalt-Eisen-Legierung
EP3937347A1 (fr) Couche de matière pour un paquet de tôles d'une machine électrique
DE102016119654A1 (de) Verfahren zur Herstellung eines weichmagnetischen Kernmaterials
EP3511429B1 (fr) Procédé de fabrication de paquets de tôles électriques
EP3799261A1 (fr) Stator à plusieurs pièces, machine électrique ainsi que procédé de fabrication d'un stator à plusieurs pièces et d'une machine électrique
DE2366048C2 (de) Aufgrund einer Wärmebehandlung einen festen Schichtenverband bildender Schichtwerkstoff für mit hoher Frequenz betriebene elektrotechnische Bauteile und Verfahren zu seiner Herstellung
DE102022119376A1 (de) Elektroblech für eine elektrische Maschine sowie Verfahren zur Herstellung eines Elektroblechs
WO2022229305A1 (fr) Bande électrique, utilisation d'une bande électrique et procédé de fabrication d'une bande électrique
DE102012211053A1 (de) Weichmagnetische Komponente und Verfahren zur Herstellung einer solchen
EP3719958A1 (fr) Matériau composite magnétique doux pour machines électriques
WO2023104431A1 (fr) Procédé de fabrication d'un noyau feuilleté d'une machine électrique
EP4054059A1 (fr) Tôle magnétique pour un paquet de tôles, paquet de tôles, machine électrique et procédé de fabrication d'une tôle magnétique
EP4333262A1 (fr) Tôle magnétique fabriquée de manière additive, paquet de tôles et procédé de fabrication d'une tôle magnétique
DE102021213936A1 (de) Verfahren zur Herstellung eines Blechpakets einer elektrischen Maschine
EP4342672A1 (fr) Tôle magnétique fabriquée de manière additive, paquet de tôles et machine électrique
WO2024074465A1 (fr) Procédé de production d'un alliage cofe pour un noyau feuilleté
DE112020006143T5 (de) Magnetkernanordnung und herstellungsverfahren dafür
WO2020099037A1 (fr) Tôle magnétique à surface structurée pour raffinement de domaines

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21701637

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 21701637

Country of ref document: EP

Kind code of ref document: A1