Patents Assigned to HÖGANÄ AB (PUBL)
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Patent number: 12002608Abstract: The present invention relates to an electrically insulated iron-based soft magnetic powder composition, a soft magnetic composite component obtainable from the powder composition and a process for producing the same. Specifically, the invention concerns a soft magnetic powder composition for the preparation of soft magnetic components working at high frequencies, the components being suitable for use e.g. as inductors or reactors for power electronics.Type: GrantFiled: May 28, 2019Date of Patent: June 4, 2024Assignee: HÖGANÄS AB (PUBL)Inventor: Zhou Ye
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Publication number: 20240117478Abstract: A method for producing a stainless steel powder by water atomization including the steps of providing a molten metal of having a chemical composition, subjecting a stream of the molten metal to water atomization, recovering the obtained stainless steel powder. A sintered duplex stainless steel, wherein the steel has a composition, wherein the microstructure of the sintered duplex stainless steel is characterized by austenite phase precipitated in ferrite phase.Type: ApplicationFiled: December 15, 2023Publication date: April 11, 2024Applicant: Höganäs AB (Publ)Inventor: Sunil Badwe
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Publication number: 20240043965Abstract: The present invention provides an Al-based powder suitable for additive manufacture. In one embodiment the powder consists 3-5.5% by weight of Mn, 0.2-2% by weight of Zr, 0.1-1.4% by weight of Cr, 0-2% by weight of Mg, at most 0.7% of Fe and Si in total, at most 0.7% by weight of O as an inevitable impurity, and at most 0.5% other inevitable impurities, balanced with Al. The present invention also concerns an additive manufacturing method as well as an article produced by additive manufacture.Type: ApplicationFiled: December 6, 2021Publication date: February 8, 2024Applicant: HÖGANÄS AB (PUBL)Inventors: Frisk KARIN, Sven BENGTSSON, Lars NYBORG, Mehta BHARAT
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Publication number: 20230339789Abstract: A continuous backwash reactor including a reactive medium including iron particles suitable for use in removing from wastewater ionic species reactive with the reactive medium including iron particles, by circulating iron particles in the continuous backwash reactor while passing said wastewater through said continuous backwash reactor and recovering a reject enriched in said ionic species therefrom. Further, a PORT wastewater remediation plant and a method of remediating wastewater.Type: ApplicationFiled: April 25, 2022Publication date: October 26, 2023Applicant: Höganäs AB (Publ)Inventors: Hyunshik CHANG, Carolyn HAWKINS, Mohisin RASHEED, Louis LEBRUN, Brett Hunt Boyd
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Patent number: 11738389Abstract: An alloy represented by the formula (MnxAly)Cz, the alloy being aluminum (Al), manganese (Mn), and carbon (C), and optionally unavoidable impurities; wherein x=56.0 to 59.0 y=41.0 to 44.0 x+y=100, and z=1.5 to 2.4. The alloy is highly suitable for forming the ? and ? phase in high purity and high microstructural homogeneity. A method for processing an alloy of formula (Mnx?Aly?)Cz?, wherein x?=52.0 to 59.0, y?=41.0 to 48.0, x?+y?=100, and z?=0.1 to 3.0, the process including providing the raw materials of the alloy, melting the raw materials, and forming particles of the alloy by gas atomization of the molten alloy.Type: GrantFiled: September 3, 2018Date of Patent: August 29, 2023Assignee: HÖGANÄS AB (PUBL)Inventors: Hailiang Fang, Martin Häggblad Sahlberg, Bjorn Skarman
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Publication number: 20230250519Abstract: A diffusion-bonded powder having an iron powder having 1-5%, preferably 1.5-4% and most preferably 1.5-3.5% by weight of copper particles diffusion bonded to the surfaces of the iron powder particles. The diffusion bonded powder is suitable for producing components having high sintered density and minimum variation in copper content. The iron powder may be produced by providing an atomized iron powder with an oxygen content of 0.3-1.2% by weight and with a carbon content of 0.1-0.5% by weight, and subjecting the atomized iron powder and a copper containing powder to a reduction annealing process in a reducing atmosphere to obtain the iron based powder.Type: ApplicationFiled: April 14, 2023Publication date: August 10, 2023Applicant: HÖGANÄS AB (PUBL)Inventors: Caroline Larsson, Ulf Engström, Christophe Szabo
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Publication number: 20230249248Abstract: An alloy represented by the formula (MnxAly)Cz, the alloy being aluminum (Al), manganese (Mn), and carbon (C), and optionally unavoidable impurities; wherein x=56.0 to 59.0 y=41.0 to 44.0 x+y=100, and z=1.5 to 2.4. The alloy is highly suitable for forming the ? and ? phase in high purity and high microstructural homogeneity. A method for processing an alloy of formula (Mnx?Aly?)Cz?, wherein x?=52.0 to 59.0, y?=41.0 to 48.0, x?+y?=100, and z?=0.1 to 3.0, the process including providing the raw materials of the alloy, melting the raw materials, and forming particles of the alloy by gas atomization of the molten alloy.Type: ApplicationFiled: February 3, 2023Publication date: August 10, 2023Applicant: Höganäs AB (Publ)Inventors: Hailiang FANG, Martin Häggblad SAHLBERG, Björn SKÅRMAN
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Patent number: 11685979Abstract: Disclosed is a new diffusion-bonded powder consisting of an iron powder having 1-5%, preferably 1.5-4% and most preferably 1.5-3.5% by weight of copper particles diffusion bonded to the surfaces of the iron powder particles. The new diffusion bonded powder is suitable for producing components having high sintered density and minimum variation in copper content.Type: GrantFiled: March 15, 2017Date of Patent: June 27, 2023Assignee: HÖGANÄS AB (PUBL)Inventors: Caroline Larsson, Ulf Engström, Christophe Szabo
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Patent number: 11633786Abstract: A feedstock for a 3D manufacturing process, in particular a Fused Filament Fabrication process. The feedstock includes (P) sinterable particles made of a metal, metal alloy, glass, ceramic material, or a mixture thereof; and (B) a binder composition including (b1) 5-15% by weight, relative to the total weight of the binder composition, of a polymeric compatibilizer, and (b2) 85-95% by weight, relative to the total weight of the binder composition, of a polymeric binder component, the polymeric binder component being selected from the group consisting of (b2-1) a polymer mixture or polymer alloy, the mixture or alloy including at least a first and a second polymer; (b2-2) one, two or more block copolymers, including at least a first polymer block and second polymer block; and (b2-3) mixtures of (b2-1) and (b2-2), wherein the amount of sinterable particles P is 40 Vol % or more of the composition.Type: GrantFiled: November 15, 2017Date of Patent: April 25, 2023Assignee: HÖGANÄS AB (PUBL)Inventors: Eva Lundin, Magalie Darnis, Sofia Nilsson, Anders Flodin
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Publication number: 20230091911Abstract: An iron-based alloy composition including: boron (B): 1.6-2.4 wt. %; carbon (C): 2.2-3.0 wt. %; chromium (Cr): 3.5-5.0 wt. %; manganese (Mn): below 0.8 wt. %; molybdenum (Mo): 16.0-19.5 wt. %; nickel (Ni): 1.0-2.0 wt. %; silicon (Si): 0.2-2.0 wt. %; vanadium (V): 10.8-13.2 wt. %; and balanced with iron (Fe). Further, an item including a substrate portion and a hardfacing coating bonded to the substrate portion, wherein the hardfacing coating is made by an overlay welding process using the iron-based alloy composition.Type: ApplicationFiled: May 23, 2022Publication date: March 23, 2023Applicant: Höganäs AB (Publ)Inventors: Barbara MAROLI, Robert FRYKHOLM, Sven BENGTSSON, Karin FRISK
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Patent number: 11554416Abstract: A method of making sintered components made from an iron-based powder composition and the sintered component per se. The method is especially suited for producing components which will be subjected to wear at elevated temperatures, consequently the components consists of a heat resistant stainless steel with hard phases including chromium carbo-nitrides. Examples of such components are parts in turbochargers for internal combustion engines.Type: GrantFiled: June 17, 2021Date of Patent: January 17, 2023Assignee: HÖGANÄS AB (PUBL)Inventors: Sven Allroth, Ola Bergman
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Patent number: 11529680Abstract: A distributor device for use in a filling shoe for filling a mould cavity of a powder compression die, the distributor device having an inlet portion connectable to a powder supply; an outlet portion with an outlet opening; and a distributor portion arranged between the inlet portion and the outlet portion. The distributor portion includes one or more guide elements arranged to divide the distributor portion into a plurality of distributor channels. The distributor channels have an input with an input cross-sectional area at an upstream end of the distributor channel and an output with an output cross-sectional area at a downstream end of the distributor channel, wherein the input cross-sectional area differs from the output cross-sectional area for at least one of the distributor channels.Type: GrantFiled: November 21, 2017Date of Patent: December 20, 2022Assignee: HÖGANÄS AB (PUBL)Inventors: Ermin Imamovic, Björn Johansson
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Patent number: 11512372Abstract: An iron-based powder composition including at least an iron-based powder, and a minor amount of a machinability enhancing additive, said additive including at least one titanate compound. The titanate compound being according to the following formula; MxO*nTiO2, wherein x can be 1 or 2 and n is a number from at least 1 and below 20, preferably below 10. M is an alkali metal such as Li, Na, K or an alkaline earth metal such as Mg, Ca, Ba, or combinations thereof. Further, the use of the machinability enhancing additive and a method for producing an iron-based sintered component for easy machining.Type: GrantFiled: February 1, 2016Date of Patent: November 29, 2022Assignee: HÖGANÄS AB (PUBL)Inventor: Bo Hu
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Publication number: 20220234919Abstract: A liquid concentrate composition for remediation of groundwater, said composition consisting of powdered iron in the amount of 30 to 70% zero-valent iron powder, such as 40 wt, 1 to 15 wt % of water, 0.1 to 1.5% of surfactant and 40 to 70 wt % of the organic carrier, wherein the organic carrier is added to the 100 wt % and optionally, organic electron donor solution and/or remediation chemical, wherein organic electron donor solution and/or remediation chemical is not exceeding 10 wt % of the liquid concentrate.Type: ApplicationFiled: January 25, 2021Publication date: July 28, 2022Applicant: Höganäs AB (Publ)Inventors: Madan TANDUKAR, Hyunshik CHANG, Carolyn HAWKINS, Benjamin MORK
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Patent number: 11370198Abstract: An iron-based alloy composition including: boron (B): 1. 6-2.4 wt. %; carbon (C): 2.2-3.0 wt. %; chromium (Cr): 3.5-5.0 wt. %; manganese (Mn): below 0.8 wt. %; molybdenum (Mo): 16.0-19.5 wt. %; nickel (Ni): 1.0-2.0 wt. %; silicon (Si): 0.2-2.0 wt. %; vanadium (V): 10.8-13.2 wt. %; and balanced with iron (Fe). Further, an item including a substrate portion and a hardfacing coating bonded to the substrate portion, wherein the hardfacing coating is made by an overlay welding process using the iron-based alloy composition.Type: GrantFiled: June 25, 2019Date of Patent: June 28, 2022Assignee: HÖGANÄS AB (PUBL)Inventors: Barbara Maroli, Robert Frykholm, Sven Bengtsson, Karin Frisk
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Publication number: 20220165463Abstract: There is provided solid composite material comprising an alloy based on manganese, aluminum and optionally carbon, and dispersed nanoparticles made from a material X, as well as a method of manufacturing the same. The material X is different from manganese, aluminum, carbon or a mixture thereof and satisfying the following requirements the melting temperature of the material X is 1400° C. or higher, preferably 1500° C. or higher; and the material X comprises a metal. The composite material is suitable as a magnetic material or as a precursor of a magnetic material, and allows obtaining improved magnetic properties as compared to existing alloys based on manganese, aluminum and optionally carbon due the presence of the nanoparticles. A magnetic material in shaped form comprising the composite material and an electric or electronic device comprising the magnetic material are also part of the invention.Type: ApplicationFiled: February 27, 2020Publication date: May 26, 2022Applicant: Höganäs AB (Publ)Inventors: Hilmar VIDARSSON, Björn SKÅRMAN, Martin HÄGGBLAD SAHLBERG, Samrand SHAFEIE
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Patent number: 11285533Abstract: A composite iron-based powder mix suitable for soft magnetic applications such as inductor cores. Also, a method for producing a soft magnetic component and the component produced by the method. An iron-based powder composition including a mixture of: (a) phosphorous coated atomized iron particles which are further coated by a silicate layer; (b) phosphorous coated iron alloy particles, the iron alloy particles of 7% to 13% by weight silicon, 4% to 7% by weight aluminium, the balance being iron; and (c) a silicone resin.Type: GrantFiled: January 31, 2017Date of Patent: March 29, 2022Assignee: HÖGANÄS AB (PUBL)Inventors: Ann-Christin Hellsen, Zhou Ye
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Publication number: 20220041449Abstract: The present invention relates to a method of producing an iron containing compound, iron containing precursor, or iron containing aqueous solution comprising the steps of: providing direct reduced iron; dissolving the direct reduced iron in organic and/or inorganic acids to provide an iron containing aqueous solution, wherein insoluble impurities of the direct reduced iron are maintained in solid form throughout the dissolution process, to obtain an iron containing aqueous solution with suspended insoluble impurities; separating the said insoluble impurities from the iron containing aqueous solution obtaining a purified iron containing aqueous solution; and optionally solidifying said purified iron containing aqueous solution to provide the iron containing compound or iron containing precursor, by drying. The present invention further relates to iron containing compounds, iron containing precursors, and iron containing aqueous solutions, and their use in battery components.Type: ApplicationFiled: December 3, 2019Publication date: February 10, 2022Applicant: Höganäs AB (Publ)Inventors: Per-Olof LARSSON, Björn SKÅRMAN, Hilmar VIDARSSON
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Publication number: 20220023825Abstract: A filtering medium, a method for the production thereof, the use of said filtering medium and a method for reducing the content of multiple contaminants simultaneously in fluids by means of said filtering medium, wherein said filtering medium has or includes at least one of the following: a mixture (A) containing a major part of an iron-based powder and a minor part of a silver powder, an iron-silver powder alloy (B), and an iron-based porous and permeable composite containing silver (C).Type: ApplicationFiled: October 7, 2021Publication date: January 27, 2022Applicant: Höganäs AB (Publ)Inventors: Avinash GORE, Bo HU, Sydney LUK
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Publication number: 20210396291Abstract: The present invention comprises a coating, in particular for brake discs, brake drums and clutch discs, and also a brake disc for a disc brake or a brake drum for a drum brake or a clutch disc for a clutch, a disc brake or drum brake or clutch itself and also a method for producing a coating in particular for brake discs, brake drums and clutch discs, and the use of a coating. The coating has a first layer, which comprises a metal-based material, which contains less than 20% by weight tungsten carbide or other carbides, and a second layer, which is applied to the first layer and comprises a tungsten-carbide-containing material, which contains 20% by weight to 94% by weight tungsten carbide, wherein the first and the second layers are thermally sprayed coatings.Type: ApplicationFiled: December 13, 2019Publication date: December 23, 2021Applicant: Höganäs AB (Publ)Inventor: Benno GRIES