EP3857580A1 - Tôle magnétique imprimée - Google Patents

Tôle magnétique imprimée

Info

Publication number
EP3857580A1
EP3857580A1 EP19795103.1A EP19795103A EP3857580A1 EP 3857580 A1 EP3857580 A1 EP 3857580A1 EP 19795103 A EP19795103 A EP 19795103A EP 3857580 A1 EP3857580 A1 EP 3857580A1
Authority
EP
European Patent Office
Prior art keywords
printing paste
printing
substrate
electrical sheet
separating layer
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.)
Granted
Application number
EP19795103.1A
Other languages
German (de)
English (en)
Other versions
EP3857580C0 (fr
EP3857580B1 (fr
Inventor
Carsten Schuh
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP3857580A1 publication Critical patent/EP3857580A1/fr
Application granted granted Critical
Publication of EP3857580C0 publication Critical patent/EP3857580C0/fr
Publication of EP3857580B1 publication Critical patent/EP3857580B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • 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
    • H01F41/0233—Manufacturing of magnetic circuits made from sheets
    • 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
    • B22F3/10—Sintering only
    • 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
    • H01F1/14—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 metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/02—Cores, Yokes, or armatures made from sheets
    • 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
    • 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
    • H01F41/14—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 applying magnetic films to substrates
    • H01F41/16—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 applying magnetic films to substrates the magnetic material being applied in the form of particles, e.g. by serigraphy, to form thick magnetic films or precursors therefor

Definitions

  • Stencil printing and screen printing represent a new process for the production of electrical sheets for electrical machines.
  • a printing paste is first produced from metal powders. This is then printed onto a carrier plate using the stencil or screen printing technique. The printing paste then converts to a thick layer, which is also referred to as a green body. The resulting green body is then converted into a metallic, structured body by thermal treatment.
  • the printing paste is conventionally applied to a carrier plate, which consists for example of Al 2 O 3 . It is known to apply a scattering agent, for example an Al 2 O 3 powder, flatly before applying the printing paste to the carrier plate, in order to facilitate the separation of the thermally treated printing paste from the carrier plate.
  • the printing paste is printed directly onto the carrier plate prepared in this way using stencil or screen printing, dried and then thermally processed.
  • a challenge with the above-mentioned method is to find a carrier plate and, if appropriate, a scattering agent that has suitable properties both for stencil or screen printing and for the subsequent thermal treatment of the printing paste.
  • the thermally treated printing paste i.e. the finished electrical sheet
  • the thermally treated printing paste is detached from the sintered base or the same is detached from the electrical sheet.
  • the sintering furnace can advantageously be immediately loaded with the next green body, i.e. the next green compact can advantageously be immediately transferred to the sinter pad that has become free.
  • Electrical sheets can advantageously be used in an electrical machine.
  • This includes rotating electrical machines, in particular electric motors and electrical generators, as well as static electrical machines, especially transformers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Printed Wiring (AREA)
  • Printing Plates And Materials Therefor (AREA)

Abstract

L'invention concerne un procédé de fabrication d'une tôle magnétique à partir d'une pâte d'impression, comprenant les étapes suivantes : a) application d'une pâte d'impression sur un substrat au moyen d'un procédé d'impression, b) séchage de la pâte d'impression se trouvant sur le substrat, c) transfert de la pâte d'impression séchée du substrat à un support de frittage, d) traitement thermique de la pâte d'impression se trouvant sur le support de frittage, et e) séparation de la pâte d'impression traitée du support de frittage. L'invention concerne en outre une tôle magnétique produite selon ce procédé, destinée à être utilisée dans une machine électrique rotative ou fixe.
EP19795103.1A 2018-11-16 2019-10-15 Tôle électrique imprimée Active EP3857580B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP18206780.1A EP3654356A1 (fr) 2018-11-16 2018-11-16 Tôle électrique imprimée
PCT/EP2019/077887 WO2020099052A1 (fr) 2018-11-16 2019-10-15 Tôle magnétique imprimée

Publications (3)

Publication Number Publication Date
EP3857580A1 true EP3857580A1 (fr) 2021-08-04
EP3857580C0 EP3857580C0 (fr) 2024-08-07
EP3857580B1 EP3857580B1 (fr) 2024-08-07

Family

ID=64331939

Family Applications (2)

Application Number Title Priority Date Filing Date
EP18206780.1A Withdrawn EP3654356A1 (fr) 2018-11-16 2018-11-16 Tôle électrique imprimée
EP19795103.1A Active EP3857580B1 (fr) 2018-11-16 2019-10-15 Tôle électrique imprimée

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP18206780.1A Withdrawn EP3654356A1 (fr) 2018-11-16 2018-11-16 Tôle électrique imprimée

Country Status (5)

Country Link
US (1) US20220013284A1 (fr)
EP (2) EP3654356A1 (fr)
CN (1) CN113056802B (fr)
ES (1) ES2990171T3 (fr)
WO (1) WO2020099052A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4082693A1 (fr) * 2021-04-28 2022-11-02 Siemens Aktiengesellschaft Procédé de fabrication d'une structure en trois dimensions
EP4086928A1 (fr) * 2021-05-05 2022-11-09 Siemens Aktiengesellschaft Procédé de fabrication d'une structure planaire et dispositif
DE102022119376A1 (de) 2021-08-06 2023-02-09 Ford Global Technologies, Llc Elektroblech für eine elektrische Maschine sowie Verfahren zur Herstellung eines Elektroblechs
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
EP4424439A1 (fr) * 2023-02-28 2024-09-04 Siemens Aktiengesellschaft Procédé de fabrication d'un paquet de tôles pour une machine électrique
EP4541487A1 (fr) * 2023-10-19 2025-04-23 Siemens Aktiengesellschaft Procédé de fabrication d'une tôle magnétique, bande de support, paquet de tôles pour une machine électrique et machine électrique
DE102023129770A1 (de) 2023-10-27 2025-04-30 Ford Global Technologies, Llc Rotorblech für eine elektrischen Maschine, elektrische Maschine, Fahrzeug und Verfahren zur Herstellung von Rotorblechen
DE102024208966A1 (de) 2024-09-19 2026-03-19 Siemens Mobility GmbH Rotoreinzelblech sowie Verfahren zu dessen Herstellung, Rotor mit einem solchen Rotoreinzelblech, Antrieb mit einem solchen Rotor, und Schienenfahrzeug mit einem solchen Antrieb

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255494A (en) * 1979-04-25 1981-03-10 Allegheny Ludlum Steel Corporation Sintered ferromagnetic powder metal parts for alternating current applications
JPS5734750A (en) * 1980-08-07 1982-02-25 Fujitsu Ltd Manufacture of electromagnetic core
CN103562418B (zh) * 2011-06-13 2015-05-06 新日铁住金株式会社 单向性电磁钢板的制造方法
DE102011109129A1 (de) * 2011-07-14 2013-01-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Elektrischer Energiewandler und Verfahren zu seiner Herstellung
KR101751526B1 (ko) * 2015-12-21 2017-06-27 주식회사 포스코 방향성 전기강판의 제조방법
US10343214B2 (en) * 2017-02-17 2019-07-09 General Electric Company Method for channel formation in binder jet printing
CN107900356A (zh) * 2017-12-18 2018-04-13 中南大学 一种粉末流延成型与高温扩散烧结制备高硅钢带材的方法
EP3616809A1 (fr) * 2018-08-31 2020-03-04 Siemens Aktiengesellschaft Procédé de fabrication d'outil de frittage, dispositif de frittage et procédé de fabrication d'une machine électrique

Also Published As

Publication number Publication date
EP3857580C0 (fr) 2024-08-07
US20220013284A1 (en) 2022-01-13
EP3654356A1 (fr) 2020-05-20
ES2990171T3 (es) 2024-11-29
CN113056802A (zh) 2021-06-29
EP3857580B1 (fr) 2024-08-07
WO2020099052A1 (fr) 2020-05-22
CN113056802B (zh) 2023-08-11

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