Patents Assigned to Vacuumschmelze GmbH & Co. KG
  • COMPOSITION FOR AN ADHESIVE MATERIAL
    Publication number: 20140221530
    Abstract: A composition for an adhesive material, comprising at least one epoxide resin mixture and a hardening accelerator, in which the epoxide resin mixture has 25 to 80% by weight of a first epoxide resin—whereby the first epoxide resin is a bifunctional aliphatic, cycloaliphatic or aromatic epoxide resin—and 12.5 to 40% by weight of a second epoxide resin—whereby the second epoxide resin is a polyfunctional aliphatic or aromatic epoxide resin—and in which the hardening accelerator is an imidazole derivative, which is not soluble in the epoxide resin mixture at temperatures of below 50° C.
    Type: Application
    Filed: February 4, 2014
    Publication date: August 7, 2014
    Applicant: VACUUMSCHMELZE GMBH & CO. KG
    Inventors: Lothar Zapf, Markus Brunner
  • Two-component structure adhesive for the adhering of rare earth magnets
    Patent number: 8796382
    Abstract: Disclosed herein is a two-component structural adhesive based on organic compounds containing radically polymerizable multiple bonds, in particular substituted acrylates and/or methacrylates, which on account of their lack of acids are particularly suited for adhering rare earth permanent magnets based on neodymium-iron-boron.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: August 5, 2014
    Assignee: Vacuumschmelze GmbH & Co. KG
    Inventor: Lothar Zapf
  • Magnetic strip, sensor comprising a magnetic strip and process for the manufacture of a magnetic strip
    Patent number: 8778100
    Abstract: The invention relates to a magnetic strip, wherein the strip has a magnetic easy axis which is axially parallel to a transverse axis of the strip. The strip is cut to length, from strip material made of a semi-hard magnetic crystalline alloy, along a transverse axis of the strip material substantially corresponding to a length (l) of the strip. The strip material has a magnetic easy axis which runs axially parallel to the transverse axis of the strip material.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: July 15, 2014
    Assignee: Vacuumschmelze GmbH & Co. KG
    Inventor: Ottmar Roth
  • MAGNETIC CORE, METHOD AND DEVICE FOR ITS PRODUCTION AND USE OF SUCH A MAGNETIC CORE
    Publication number: 20140152416
    Abstract: A magnetic core, such as for an interphase transformer, made of a nanocrystalline alloy, which consists of Fe100-a-b-c-d-x-y-zCuaNbbMcTdSixByZz and up to 1 at. % of impurities, whereby M is one or more of the elements Mo, Ta or Zr; T is one or more of the elements V, Cr, Co or Ni; and Z is one or more of the elements C, P or Ge, and 0 at. %?a<1.5 at. %, 0 at. %?b<4 at. %, 0 at. %?c<4 at. %, 0 at. %?d<5 at. %, 12 at. %<x<18 at. %, 5 at. %<y<12 at. %, and 0 at. %?z<2 at. %, the core having a saturation magnetostriction of <2 ppm and a permeability between 100 and 1,500, wherein the alloy has been exposed to a heat treatment at a temperature between 450 and 750° C. under a tensile stress between 30 and 500 MPa.
    Type: Application
    Filed: October 10, 2013
    Publication date: June 5, 2014
    Applicant: Vacuumschmelze GmbH & Co. KG
    Inventors: Giselher HERZER, Christian POLAK, Klaus REICHERT
  • ALLOY, MAGNET CORE AND METHOD FOR PRODUCING A STRIP FROM AN ALLOY
    Publication number: 20140104024
    Abstract: An alloy of Fe100-a-b-c-d-x-y-zCuaNbbMcTdSixByZz and up to 1 atomic % impurities; M is one or more of Mo or Ta, T is one or more of V, Cr, Co or Ni and Z is one or more of C, P or Ge, wherein 0.0 atomic % a <1.5 atomic %, 0.0 atomic % b <3.0 atomic %, 0.2 atomic % c 4.0 atomic %, 0.0 atomic % d <5.0 atomic %, 12.0 atomic %<x<18.0 atomic %, 5.0 atomic %<y<12.0 atomic % and 0.0 atomic % z<2.0 atomic %, and wherein 2.0 atomic % (b+c) 4.0 atomic %, produced in the form of a strip and having a nanocrystalline structure in which at least 50% by volume of the grains have an average size of less than 100 nm, a remanence ratio Jr/Js<0.02, Jr being the remanent polarisation and Js being the saturation polarisation, and a coercitive field strength Hc which is less than 1% of the anisotropic field strength Ha and/or less than 10 A/m.
    Type: Application
    Filed: October 11, 2013
    Publication date: April 17, 2014
    Applicant: Vacuumschmelze GmbH & Co. KG
    Inventors: Giselher HERZER, Mie Marsilius, Christian Polak
  • Soft magnetic metal strip for electromechanical components
    Patent number: 8699190
    Abstract: The invention relates to a soft-magnetic metal strip for electromechanical components, wherein the soft-magnetic metal strip has a nanocrystalline or amorphous structure. The metal strip has strip thickness to roughness ratios d/Ra of 5?d/Ra?25.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: April 15, 2014
    Assignee: Vacuumschmelze GmbH & Co. KG
    Inventor: Giselher Herzer
  • Laminate stack comprising individual soft magnetic sheets, electromagnetic actuator, process for their manufacture and use of a soft magnetic laminate stack
    Patent number: 8669837
    Abstract: A laminate stack having individual soft magnetic sheets. The individual sheets are involutely curved in the laminate stack. Each individual sheet has a first long side, a second long side opposite the first long side, a first short side and a second short side opposite the first short side. The first long side has a recess, said recess being rectangular and equidistant from the first short side, the second short side and the second long side when the individual sheet is in its uncurved state.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: March 11, 2014
    Assignee: Vacuumschmelze GmbH & Co. KG
    Inventors: Joachim Gerster, Herbert Hoehn
  • IRON- AND NICKEL-BASED BRAZING FOIL AND METHOD FOR BRAZING
    Publication number: 20130333810
    Abstract: An amorphous, ductile brazing foil is produced with a composition of FeaNibCrcSidBeMofPg with 25?a?50 atomic %; 30?b?45 atomic %; 5<c?15 atomic %; 4?d?15 atomic %; 4?e?15 atomic %; 0?f?5 atomic %; 0?g?6 atomic %; and any impurities, wherein 10?d+e+g?28 atomic % with a+b+c+d+e+f+g=100. Excellent brazing joints can be produced with these brazing foils.
    Type: Application
    Filed: February 6, 2013
    Publication date: December 19, 2013
    Applicant: VACUUMSCHMELZE GMBH & CO. KG
    Inventors: Thomas HARTMANN, Dieter Nuetzel
  • Paint composition, in particular anti-corrosive paint for rare earth permanent magnets
    Patent number: 8564391
    Abstract: A paint composition, in particular an anti-corrosive paint, for rare earth permanent magnets, has an epoxy resin mixture, a curing accelerator, an epoxy-functional adhesion promoter based on silane and a solvent. Due to the paint compositions, rare earth permanent magnets can be bonded simultaneously to a magnet system in a one method step and can be protected against corrosion. Due to the anti-corrosive paint, magnet systems which have excellent anti-corrosion properties, a satisfactory adhesive strength even at high temperatures and display good electric insulation properties, are provided.
    Type: Grant
    Filed: January 16, 2007
    Date of Patent: October 22, 2013
    Assignee: Vacuumschmelze GmbH & Co. KG
    Inventor: Lothar Zapf
  • Composite article with magnetocalorically active material and method for its production
    Patent number: 8551210
    Abstract: A composite article (1; 10; 40) comprises a plurality of inclusions (5) of a magnetocalorically active material embedded in a matrix (4) of a magnetocalorically passive material. The inclusions (5) and the matrix (4) have a microstructure characteristic of a compacted powder.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: October 8, 2013
    Assignee: Vacuumschmelze GmbH & Co. KG
    Inventors: Georg Werner Reppel, Matthias Katter
  • METHOD FOR CLASSIFYING ARTICLES AND METHOD FOR FABRICATING A MAGNETOCALORICALLY ACTIVE WORKING COMPONENT FOR MAGNETIC HEAT EXCHANGE
    Publication number: 20130243637
    Abstract: A method for classifying articles comprising magnetocalorically active material according to magnetic transition temperature comprises providing a source of articles to be classified, the source comprising articles comprising magnetocalorically active materials having differing magnetic transition temperatures, sequentially applying a magnetic field at differing temperatures to the source, the magnetic field being sufficient to exert a magnetic force on the source that is greater than the inertia of a fraction of the articles causing the fraction of the articles to move and produce an article fraction, and collecting the article fraction at each temperature to provide a plurality of separate article fractions of differing magnetic transition temperature, thus classifying the articles comprising magnetocalorically active material according to magnetic transition temperature.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 19, 2013
    Applicant: Vacuumschmelze GmbH & Co. KG
    Inventor: Matthias KATTER
  • Magnetic article and method for producing a magnetic article
    Patent number: 8518194
    Abstract: A magnetic article comprises, in total, elements in amounts capable of providing at least one (La1-aMa)(Fe1-b-cTbYc)13-dXe phase and less than 0.5 Vol % impurities, wherein 0?a?0.9, 0?b?0.2, 0.05?c?0.2, ?1?d?+1, 0?e?3, M is one or more of the elements Ce, Pr and Nd, T is one or more of the elements Co, Ni, Mn and Cr, Y is one or more of the elements Si, Al, As, Ga, Ge, Sn and Sb and X is one or more of the elements H, B, C, N, Li and Be. The magnetic article comprises a permanent magnet.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: August 27, 2013
    Assignee: Vacuumschmelze GmbH & Co. KG
    Inventors: Matthias Katter, Joachim Gerster, Ottmar Roth
  • MAGNET CORE FOR LOW-FREQUENCY APPLICATIONS AND METHOD FOR PRODUCING A MAGNET CORE FOR LOW-FREQUENCY APPLCATIONS
    Publication number: 20130214893
    Abstract: Magnet core for low-frequency applications and method for producing a magnet core for low-frequency applications A magnet core for low-frequency applications made of a spiral-wound, soft-magnetic, nanocrystalline strip is provided, the strip essentially having the alloy composition FeRestCoaCubNbcSidBeCf, wherein a, b, c, d, e and f are stated in atomic percent and 0?a?1; 0.7?b?1.4; 2.5?c?3.5; 14.5?d?16.5; 5.5?e?8 and 0?f?1, and cobalt may wholly or partially be replaced by nickel, the magnet core having a saturation magnetostriction ?s of ?s<2 ppm, a starting permeability ?1 of ?1>100 000 and a maximum permeability ?max of ?max>400 000, and a sealing metal oxide coating being provided on the surfaces of the strip.
    Type: Application
    Filed: August 5, 2011
    Publication date: August 22, 2013
    Applicant: Vacuumschmelze GmbH & Co. KG
    Inventor: Jörg Petzold
  • METHOD FOR FABRICATING A FUNCTIONALLY-GRADED MONOLITHIC SINTERED WORKING COMPONENT FOR MAGNETIC HEAT EXCHANGE AND AN ARTICLE FOR MAGNETIC HEAT EXCHANGE
    Publication number: 20130187077
    Abstract: An article for magnetic heat exchange includes a functionally-graded monolithic sintered working component including La1-aRa(Fe1-x-yTyMx)13HzCb with a NaZn13-type structure. M is one or more of the elements from the group consisting of Si and Al, T is one or more of the elements from the group consisting of Mn, Co, Ni, Ti, V and Cr and R is one or more of the elements from the group consisting of Ce, Nd, Y and Pr. A content of the one or more elements T and R, if present, a C content, if present, and a content of M varies in a working direction of the working component and provides a functionally-graded Curie temperature. The functionally-graded Curie temperature monotonically decreases or monotonically increases in the working direction of the working component.
    Type: Application
    Filed: August 17, 2011
    Publication date: July 25, 2013
    Applicant: VACUUMSCHMELZE GMBH & CO. KG
    Inventors: Matthias Katter, Alexander Barcza, Volker Zellmann
  • METHOD FOR PRODUCING A RARE EARTH-BASED MAGNET
    Publication number: 20130153088
    Abstract: A method for producing a rare earth-based magnet is provided that comprises providing a precursor sintered R2Fe14B-type magnet where R represents a rare earth element, applying particles comprising a rare earth element R? to a first surface of the precursor sintered magnet, applying particles of further material to the first surface of the precursor magnet and/or a further surface of the precursor magnet and heat treating the precursor sintered magnet. The heat treating is carried out at a temperature T for a time t selected to allow diffusion of the rare earth element R? into the precursor sintered magnet to produce a magnet. The further material remains solid and particulate after the heat treating.
    Type: Application
    Filed: December 14, 2012
    Publication date: June 20, 2013
    Applicant: Vacuumschmelze GmbH & Co. KG
    Inventor: Vacuumschmelze GmbH & Co. KG
  • IRON- AND NICKEL-BASED BRAZING FOIL AND METHOD FOR BRAZING
    Publication number: 20130146184
    Abstract: An amorphous, ductile brazing foil is produced with a composition of FeaNibCrcSidBeMofPg with 25?a?50 atomic %; 30?b?45 atomic %; 5<c?15 atomic %; 4?d?15 atomic %; 4?e?15 atomic %; 0?f?5 atomic %; 0?g?6 atomic %; and any impurities, wherein 10?d+e+g?28 atomic % with a+b+c+d+e+f+g=100. Excellent brazing joints can be produced with these brazing foils.
    Type: Application
    Filed: February 6, 2013
    Publication date: June 13, 2013
    Applicant: VACUUMSCHMELZE GMBH & CO. KG
    Inventors: Thomas HARTMANN, Dieter Nuetzel
  • ANTENNA CORE, ANTENNA, AND METHODS FOR PRODUCING AN ANTENNA CORE AND AN ANTENNA
    Publication number: 20130088401
    Abstract: The invention relates to an antenna core, an antenna comprising an antenna core, and to methods for producing an antenna core and an antenna. The antenna core used in each case consists of a continuous soft-magnetic strip having a plurality of layers which are stacked one on top of the other and each of which is formed by a section of the strip. The layers are connected to one another by curved sections of the strip at end regions of the antenna core.
    Type: Application
    Filed: January 28, 2011
    Publication date: April 11, 2013
    Applicant: Vacuumschmelze GmbH & CO KG
    Inventors: Johannes Binkofski, Markus Brunner, Klemens Trabold, Ralf Koch
  • Low hysteresis sensor
    Patent number: 8405391
    Abstract: A sensor comprises a magnetic field source, at least one flux conducting soft magnetic element with at least one air gap and at least one magnetic field sensor located in the air gap and measuring a change of the magnetic field of the magnetic field source. The flux conducting soft magnetic element consists of 35% by weight?Ni?50% by weight, 0% by weight?Co?2% by weight, 0% by weight?Mn?1.0% by weight, 0% by weight?Si?0.5% by weight and 0.5% by weight?Cr?8% by weight and/or 0.5% by weight?Mo?8% by weight, wherein (Mo+Cr)?8, rest iron and unavoidable impurities.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: March 26, 2013
    Assignee: Vacuumschmelze GmbH & Co. KG
    Inventors: Johannes Tenbrink, Witold Pieper, Burkard Kraus, Joachim Gerster
  • CURRENT SENSOR ARRANGEMENT
    Publication number: 20130057272
    Abstract: Current sensor comprising a primary conductor for conducting a current that is to be measured, at least two magnetic field probes for measuring magnetic fields, and a magnetic core, which has a closed ring structure that encloses the primary conductor and at least two recesses that in each case receive one of the magnetic field probes.
    Type: Application
    Filed: July 27, 2012
    Publication date: March 7, 2013
    Applicant: Vacuumschmelze GmbH & Co. KG
    Inventors: Friedrich LENHARD, Sebastian KUDIMOW
  • THERMOELECTRIC MODULE AND METHOD FOR PRODUCING A THERMOELECTRIC MODULE
    Publication number: 20130037071
    Abstract: A thermoelectric module which has at least one thermoelectric element for converting energy between thermal energy and electrical energy. The at least one thermoelectric element has a first surface and a second surface opposite the first surface. The thermoelectric module further has a first electrode, the first electrode having at least a first region which is arranged directly on the first surface and a second electrode, the second electrode having at least a second region which is arranged directly on the second surface. At least one of the first region and the second region has a metal alloy which exhibits an Invar effect.
    Type: Application
    Filed: August 10, 2012
    Publication date: February 14, 2013
    Applicant: Vacuumschmelze GmbH & Co, KG
    Inventors: Joachim Gerster, Alberto Bracchi, Michael Müller