Global Patent Index - EP 3792944 A1

EP 3792944 A1 20210317 - METHOD FOR MAKING A STRUCTURED MAGNETIC MATERIAL WITH INTEGRATED PARTICLE INSULATION

Title (en)

METHOD FOR MAKING A STRUCTURED MAGNETIC MATERIAL WITH INTEGRATED PARTICLE INSULATION

Title (de)

VERFAHREN ZUR HERSTELLUNG EINES STRUKTURIERTEN MAGNETISCHEN MATERIALS MIT INTEGRIERTER PARTIKELISOLIERUNG

Title (fr)

PROCÉDÉ DE FABRICATION D'UN MATÉRIAU MAGNÉTIQUE STRUCTURÉ AVEC ISOLATION DE PARTICULES INTÉGRÉE

Publication

EP 3792944 A1 20210317 (EN)

Application

EP 20203613 A 20140305

Priority

  • US 201313836615 A 20130315
  • EP 14769666 A 20140305
  • US 2014020736 W 20140305

Abstract (en)

A system for forming a soft magnetic bulk material of a predetermined shape from a magnetic material and a source of insulating material, including a heating device; a deposition device; a support, and a mask configured as a negative of at least a portion of the predetermined shape. The heating device heats the magnetic material to form particles having a softened state and wherein the deposition device deposits successive layers of particles of the magnetic material in the softened state on the support with the mask located between the deposition device and the support. The mask is indexed to a position relative to the support upon deposition of the successive layers. The mask selectively blocks the successive layers of particles of the magnetic material in the softened state from being deposited on the support forming the soft magnetic bulk material of a predetermined shape on the support.

IPC 8 full level

H01F 41/02 (2006.01); B22D 23/00 (2006.01); C23C 4/01 (2016.01); C23C 4/123 (2016.01); H01F 1/24 (2006.01)

CPC (source: EP)

B05B 1/083 (2013.01); B05B 7/224 (2013.01); C23C 4/01 (2016.01); C23C 4/08 (2013.01); C23C 4/131 (2016.01); C23C 24/04 (2013.01); H01F 1/24 (2013.01); H01F 41/0246 (2013.01)

Citation (applicant)

  • US 5266098 A 19931130 - CHUN JUNG-HOON [US], et al
  • JANSSON, P.: "Advances in Soft Magnetic Composites Based on Iron Powder", SOFT MAGNETIC MATERIALS, '98, PAPER NO. 7, BARCELONA, SPAIN, April 1998 (1998-04-01)
  • UOZUMI, G. ET AL.: "Properties of Soft Magnetic Composite With Evaporated MgO Insulation Coating for Low Iron Loss", MATERIALS SCIENCE FORUM, vol. 534-536, 2007, pages 1361 - 1364
  • JACK, A. G.MECROW, B.C.MADDISON, C.P.: "Combined Radial and Axial Permanent Magnet Motors Using Soft Magnetic Composites", NINTH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND DRIVES, 1999
  • JACK, A.G. ET AL.: "Permanent-Magnet Machines with Powdered Iron Cores and Prepressed Windings", IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, vol. 36, no. 4, July 2000 (2000-07-01), pages 1077 - 1084, XP001099911, DOI: 10.1109/28.855963
  • HUR, J. ET AL.: "Development of High-Efficiency 42V Cooling Fan Motor for Hybrid Electric Vehicle Applications", IEEE VEHICLE POWER AN PROPULSION CONFERENCE, WINDSOR, U.K., September 2006 (2006-09-01)
  • CVETKOVSKI, G.PETKOVSKA, L.: "Performance Improvement of PM Synchronous Motor by Using Soft Magnetic Composite Material", IEEE TRANSACTIONS ON MAGNETICS, vol. 44, no. 11, November 2008 (2008-11-01), pages 3812 - 3815, XP011240125, DOI: 10.1109/TMAG.2008.2001314
  • UOZUMI, G. ET AL.: "Properties of Soft Magnetic Composite with Evaporated MgO Insulation Coating for Low Iron Loss", MATERIALS SCIENCE FORUM, vol. 534-536, 2007, pages 1361 - 1364
  • CHUN, J.-H.PASSOW, C.H., PRODUCTION OF CHARGED UNIFORMLY SIZED METAL DROPLETS
  • ROY, S.ANDO T.: "Nucleation Kinetics and Microstructure Evolution of Traveling ASTM F75 Droplets", ADVANCED ENGINEERING MATERIALS, vol. 12, no. 9, September 2010 (2010-09-01), pages 912 - 919

Citation (search report)

  • [A] JP 2002343618 A 20021129 - YASKAWA ELECTRIC CORP
  • [XI] SASAN DADBAKHSH ET AL: "In Situ Formation of Particle Reinforced Al Matrix Composite by Selective Laser Melting of Al/Fe2O3 Powder Mixture", ADVANCE ENGINEERING MATERIALS, vol. 14, no. 1-2, 1 February 2012 (2012-02-01), DE, pages 45 - 48, XP055770912, ISSN: 1438-1656, DOI: 10.1002/adem.201100151
  • [A] DURAES ET AL: "Fe"2O"3/aluminum thermite reaction intermediate and final products characterization", MATERIALS SCIENCE AND ENGINEERING: A, ELSEVIER, AMSTERDAM, NL, vol. 465, no. 1-2, 30 June 2007 (2007-06-30), pages 199 - 210, XP022136591, ISSN: 0921-5093, DOI: 10.1016/J.MSEA.2007.03.063
  • [A] FAN R H ET AL: "Kinetics of thermite reaction in Al-Fe"2O"3 system", THERMOCHIMICA ACTA, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, vol. 440, no. 2, 15 January 2006 (2006-01-15), pages 129 - 131, XP025005318, ISSN: 0040-6031, [retrieved on 20060115], DOI: 10.1016/J.TCA.2005.10.020

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

WO 2014149761 A2 20140925; WO 2014149761 A3 20141231; EP 2969315 A2 20160120; EP 2969315 A4 20170419; EP 2969315 B1 20201202; EP 3792944 A1 20210317; EP 3792944 B1 20231108; EP 4279630 A2 20231122; EP 4279630 A3 20240313; JP 2016516896 A 20160609; JP 6173554 B2 20170802

DOCDB simple family (application)

US 2014020736 W 20140305; EP 14769666 A 20140305; EP 20203613 A 20140305; EP 23200660 A 20140305; JP 2016500661 A 20140305