Patents Assigned to Vacuumschmelze GmbH
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Patent number: 12264386Abstract: In an embodiment a FeCoV alloy is provided with a composition consisting essentially of 30 wt %?Co?55 wt %, 0.4 wt %?V?1.5 wt %, 0. wt %?Nb?0.15 wt %, 0.0 wt %?Ta?0.20 wt %, 0.04 wt %?Nb+0.5·Ta?0.15 wt %, max. 0.02 wt % C, 0.0 wt %?Si?0.50 wt %, 0.0 wt %?Al?0.50 wt %, max. 0.5 wt % Mn, max. 0.5 wt % Cr, max. 0.5 wt % Ni, max. 0.5 wt % W, max. 0.5 wt % Mo, max. 0.5 wt % Zr, the rest Fe and up to 1 wt % of other impurities, and having a phase transition from a ferritic ?-phase region to a mixed ferritic/austenitic ?+?-region that takes place at a transition temperature T(?/?+?), where T(?/?+?)?900° C., preferably ?920° C., preferably ?940° C.Type: GrantFiled: October 20, 2023Date of Patent: April 1, 2025Assignee: Vacuumschmelze GmbH & Co. KGInventors: Niklas Volbers, Michael Müller, Jan Frederik Fohr
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Patent number: 12243680Abstract: A method for producing soft magnetic strip material for roll tape-wound cores with the following steps: preparing a band-shaped material, applying a heat-treatment temperature to the band-shaped material, and applying a tensile force to the temperature-applied band-shaped material in one longitudinal direction of the band-shaped material in order to produce a tensile stress in the band-shaped material, to produce the soft magnetic strip material from the band-shaped material, the method, moreover, comprising determining at least one magnetic measurement value of the soft magnetic strip material that has been produced and controlling the tensile force for setting the tensile stress in a reaction to the determined magnetic measurement value. Furthermore, a device for carrying out the method and a roll tape-wound core produced by means of the method are made available.Type: GrantFiled: February 4, 2020Date of Patent: March 4, 2025Assignee: VACUUMSCHMELZE GMBH & CO. KGInventor: Christian Polak
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Patent number: 12220758Abstract: A soldered product comprising a first component soldered to a second component is provided. The first component comprises a stainless steel substrate, an adhesion promoter layer made of nickel deposited on at least one joining surface of the stainless steel substrate; and a tin layer deposited on the adhesion promoter layer. The tin layer has a layer thickness in the range of 10-30 ?m. The second component is typically a rare earth magnet.Type: GrantFiled: June 20, 2022Date of Patent: February 11, 2025Assignee: Vacuumschmelze GmbH & Co. KGInventors: Lothar Zapf, Natalia Ankuda, Manfred Reuther
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Patent number: 12188106Abstract: A device for the production of a metallic strip using a rapid solidification technology is provided. The device includes a movable heat sink with an external surface onto which a melt is poured and on which the melt solidifies to produce the strip, and which device includes a rolling device which can be pressed against the external surface of the movable heat sink while the heat sink is in motion.Type: GrantFiled: September 1, 2022Date of Patent: January 7, 2025Assignee: VACUUMSCHMELZE GMBH & CO. KGInventor: Robert Schulz
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Patent number: 12176133Abstract: An inductive component, which has an annular core having a core cross section and made of a soft-magnetic material and a coil surrounding the core is provided. The coil is composed of two electrically conductive sections. The sections each have a basic U shape with two limbs, of which the first limb is longer than the second limb and the first limb is curved and towards the end of same projects away from a plane defined by the basic U shape. The sections are pushed onto the core next to one another so that the basic U shape of each section surrounds the core cross section on three sides. The first limb of a section is mechanically and electrically connected to the second limb of the other section. A method for producing a component of this kind is also described.Type: GrantFiled: May 28, 2019Date of Patent: December 24, 2024Assignee: Vacuumschmelze GmbH & Co. KGInventors: Harald Hundt, Bjoern Stuwe, Johannes Beichler, Klemens Trabold
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Patent number: 12148557Abstract: The invention relates to a magnetic assembly comprising a magnetic core made of a soft magnetic material and a housing which surrounds the magnetic core on all sides and has two housing parts connected to one another. The connected housing parts have an overlapping region all around the magnetic core, within which one of the housing parts has a ridge all around the edge and the other housing part has a corresponding groove all around the edge, in which the rib interlockingly engages.Type: GrantFiled: March 20, 2019Date of Patent: November 19, 2024Assignee: Vacuumschmelze GmbH & Co. KGInventors: Axel Schulze, Sebastian Steigerwald
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Patent number: 12138684Abstract: A method for producing a strip using a rapid solidification technology is provided. A melt is poured onto a moving outer surface of a rotating casting wheel, the melt is solidified on the outer surface and a strip is formed. A gaseous jet is directed at the moving outer surface and the outer surface of the casting wheel is worked with the jet. The jet comprises CO2 and at least part of this CO2 strikes the moving outer surface of the casting wheel in a solid state.Type: GrantFiled: March 7, 2023Date of Patent: November 12, 2024Assignee: Vacuumschmelze GmbH & Co. KGInventors: Thomas Hartmann, Robert Schulz
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Patent number: 12116655Abstract: A soft magnetic alloy comprising 2 wt %?Co?30 wt %, 0.3 wt %?V?5.0 wt % and iron is provided. The soft magnetic alloy has a area proportion of a {111}<uvw> texture of no more than 13%, preferably no more than 6%, including grains with a tilt of up to +/?10°, or preferably of up to +/?15°, when compared to the nominal crystal orientation.Type: GrantFiled: December 17, 2021Date of Patent: October 15, 2024Assignee: VACUUMSCHMELZE GMBH & CO. KGInventors: Niklas Volbers, Johannes Tenbrink, Jan Frederik Fohr
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Patent number: 12110579Abstract: A method of producing a CoFe alloy strip is provided. The method comprises hot rolling a CoFe alloy to form a hot rolled strip, followed by quenching the strip from a temperature above 700° C. to a temperature of 200° C. The CoFe alloy comprises an order/disorder temperature To/d and a ferritic/austenitic transformation temperature T?/?, wherein T?/?>To/d. The method further comprises cold rolling the hot rolled strip, after cold rolling, continuous annealing the strip at a maximum temperature T1, wherein 500° C.<T1<To/d, followed by cooling at a cooling rate R1 of at least 1 K/s in the temperature range of T1 to 500° C., and after continuous annealing, magnetic annealing the strip, or parts manufactured from the strip, at a temperature between 730° C. and T?/?.Type: GrantFiled: August 9, 2021Date of Patent: October 8, 2024Assignee: VACUUMSCHMELZE GMBH & CO. KGInventors: Niklas Volbers, Manuel Demper, Joachim Gerster
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Patent number: 12077833Abstract: A metal strip is provided having a casting-wheel side that has been solidified on an outer surface of a heat sink, an opposing, air side and a microstructure. The microstructure is at least 80 vol. % amorphous or has at least 80 vol. % nanocrystalline grains and a residual amorphous matrix in which at least 80% of the nanocrystalline grains have an average grain size of less than 50 nm and a random orientation. The air side of the metal strip has a surface crystallisation proportion of less than 23%.Type: GrantFiled: August 31, 2020Date of Patent: September 3, 2024Assignee: VACUUMSCHMELZE GMBH & CO. KGInventor: Mie Marsilius
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Patent number: 12081082Abstract: A method for producing a laminated core is provided in which a plurality of lamination sheets is partially or completely separated from a strip made of a soft magnetic alloy by laser sublimation cutting, the lamination sheets each having a main surface and a thickness d. The main surface of a first of the lamination sheets is stacked on the main surface of a second of the lamination sheets in a direction of stacking and the main surfaces of the first and the second lamination sheets are substance-to-substance joined at a plurality of points by laser welding, a plurality of filler-free joints being formed between the between the first and the second lamination sheets and being entirely surrounded by the main surfaces of the first and the second lamination sheets.Type: GrantFiled: February 2, 2021Date of Patent: September 3, 2024Assignee: VACUUMSCHMELZE GMBH & CO. KGInventors: Frederic Bäcker, Jens Diehl
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Patent number: 12075602Abstract: A multi-shelled shielded room is provided that has an outer shell with a first soft magnetic alloy having an initial permeability ?i1 and a maximum permeability ?max1 and an inner shell with a second soft magnetic alloy having an initial permeability ?i2 and a maximum permeability ?max2. The outer shell encases the inner shell and ?max1>?max2 and ?i2>?i1.Type: GrantFiled: July 23, 2019Date of Patent: August 27, 2024Assignee: VACUUMSCHMELZE GMBH & CO. KGInventors: Gerd Rauscher, Manuel Demper, Maximilian Staab, Niklas Volbers
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Patent number: 12068098Abstract: A magnetic core for a current sensor is provided. The magnetic core comprises a first and a second core part, each of which is formed from a stack made up of a plurality of sheet metal layers. The second core part has a first end piece structured such that some of the sheet metal layers are longer and protrude beyond the remaining, shorter sheet metal layers. The first core part has a second end piece which is structured inversely to the first end piece of the second core part. The first core part and the second core part are joined together at a connection point such that the longer sheet metal layers of the first end piece and the second end piece overlap at the connection point, wherein the overlap takes place at a number of interfaces that is at least two less than the number of sheet metal layers.Type: GrantFiled: July 18, 2022Date of Patent: August 20, 2024Assignee: Vacuumschmelze GmbH & Co. KGInventors: Sebastian Kudimow, Daniel Jordan
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Patent number: 11998983Abstract: A method is provided in which a lower box comprising a base, walls that surround the base and an open side, and an upper box comprising a cover, walls that surround the cover and an open side are provided. One or more objects are arranged on the base of the lower box. The object(s) are covered with the upper box such that the open side of the upper is oriented towards the base of the box, the walls of the upper box are arranged on the base of the lower box and a gap is formed between the walls of the upper box and the walls of the lower box. A powder material is introduced into the gap in order to form an assembly having an interior. The powder material provides a mechanical obstacle to gas exchange between the interior and the environment. This assembly is then heat treated.Type: GrantFiled: March 31, 2022Date of Patent: June 4, 2024Assignee: VACUUMSCHMELZE GMBH & CO. KGInventors: Kaan Üstüner, Matthias Katter, Christoph Brombacher, Daniela Benedikt
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Patent number: 11945033Abstract: A method is provided for the heat treatment of an object comprising at least one rare-earth element with a high vapor pressure. One or more objects comprising at least one rare-earth element with a high vapor pressure are arranged in an interior of a package. An external source of the at least one rare-earth element is arranged so as to compensate for the evaporation of this same rare-earth element from the object and/or to increase the vapor pressure of the rare-earth element in the interior of the package, and the package is heat treated.Type: GrantFiled: March 31, 2022Date of Patent: April 2, 2024Assignee: VACUUMSCHMELZE GMBH & CO. KGInventors: Kaan Üstüner, Matthias Katter, Christoph Brombacher, Daniela Benedikt
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Patent number: 11881350Abstract: A laminated core comprising a plurality of lamination sheets made of a soft magnetic alloy is provided. The lamination sheets have a main surface and a thickness d. The main surfaces of the lamination sheets are stacked one on top of another in a direction of stacking. Adjacent lamination sheets are joined to one another by a plurality of substance-to-substance joints, the joints being filler-free and entirely surrounded by the main surfaces of the adjacent lamination sheets.Type: GrantFiled: February 2, 2021Date of Patent: January 23, 2024Assignee: VACUUMSCHMELZE GMBH & CO. KGInventors: Frederic Bäcker, Jens Diehl, Dominik Fackelmann
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Patent number: 11837391Abstract: A sintered R2M17 magnet is provided that comprises at least 70 Vol % of a Sm2M17 phase, wherein R is at least one of the group consisting of Ce, La, Nd, Pr, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yt, Lu and Y, and M comprises Co, Fe, Cu and Zr. In an area of the R2M17 sintered magnet of 200 by 200 ?m viewed in a Kerr micrograph, an areal proportion of demagnetised regions after application of an internal opposing field of 1200 kA/m is less than 5% or less than 2%.Type: GrantFiled: July 26, 2022Date of Patent: December 5, 2023Assignee: Vacuumschmelze GmbH & Co. KGInventors: Kaan Üstüner, Matthias Katter, Christoph Brombacher
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Patent number: 11827961Abstract: In an embodiment a FeCoV alloy is provided with a composition consisting essentially of 30 wt %?Co?55 wt %, 0.4 wt %?V?1.5 wt %, 0 wt %?Nb?0.15 wt %, 0.0 wt %?Ta?0.20 wt %, 0.04 wt %?Nb+0.5·Ta?0.15 wt %, max. 0.02 wt % C, 0.0 wt %?Si?0.50 wt %, 0.0 wt %?Al?0.50 wt %, max. 0.5 wt % Mn, max. 0.5 wt % Cr, max. 0.5 wt % Ni, max. 0.5 wt % W, max. 0.5 wt % Mo, max. 0.5 wt % Zr, the rest Fe and up to 1 wt % of other impurities, and having a phase transition from a ferritic ?-phase region to a mixed ferritic/austenitic ?+?-region that takes place at a transition temperature T(?/?+?), where T(?/?+?)?900° C., preferably ?920° C., preferably ?940° C.Type: GrantFiled: December 17, 2021Date of Patent: November 28, 2023Assignee: VACUUMSCHMELZE GMBH & CO. KGInventors: Niklas Volbers, Michael Müller, Jan Frederik Fohr
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Patent number: 11758704Abstract: A panel for a shielding cabin having a base plate made of a non-magnetic material and at least one sheet layer made of a soft magnetic material is provided. The base plate is stuck to at least one sheet layer by a viscoelastic adhesive. The adhesive has a glass transition temperature of ?80° C. to ?60° C.Type: GrantFiled: June 11, 2019Date of Patent: September 12, 2023Assignee: VACUUMSCHMELZE GMBH & CO. KGInventors: Gerd Rauscher, Markus Hein, Maximilian Staab, Niklas Volbers
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Patent number: 11747366Abstract: A method for non-contact current measurement is described. According to one exemplary embodiment, the method comprises the alternating magnetizing of a magnetic core to a maximum value in the positive and negative directions by controlling at least one secondary conductor which is magnetically coupled to the magnetic core; generating an oscillator signal which alternates between a first state and a second state, whereby the alternating magnetization processes are indicated; and determining a first measured value for an effective primary current which flows through at least one primary conductor which is magnetically coupled to the magnetic core, based on the times that the oscillator signal dwells in the first and the second state.Type: GrantFiled: January 18, 2022Date of Patent: September 5, 2023Assignee: VACUUMSCHMELZE GMBH & CO. KGInventor: Steffen Boettcher