Patents Assigned to Hoganas AB
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Patent number: 10519048Abstract: An electrochemical cell containing a sacrificial electrode suitable for electrocoagulation as well as an electrocoagulation process for removing various pollutants from water or wastewater by the use of the electrochemical cell. Also, the sacrificial electrode itself. Several electrochemical cells can be coupled to an electrochemical cell assembly. Certain aspects and embodiments are especially suitable for reduction of fluoride or fluoride in combination with heavy metals such as hexavalent chromium or arsenic.Type: GrantFiled: May 9, 2014Date of Patent: December 31, 2019Assignee: HÖGANÄS AB (PUBL)Inventors: Madan Tandukar, Kyle Unger, Paul Endler
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Publication number: 20190388964Abstract: The present invention relates to a new pre-alloyed metal based powder, intended to be used in surface coating of metal parts. The powder is deposited using e.g. laser cladding or plasma transfer arc welding (PTA), or thermal spray (e.g. HVOF). The powder is useful for reducing friction and improving wear reducing properties of the deposited coating. Such coatings may also improve machinability. As friction or wear reducing component, inclusions of manganese sulphide or tungsten sulphide in the pre-alloyed powder may be used.Type: ApplicationFiled: January 26, 2018Publication date: December 26, 2019Applicant: Höganäs AB (Publ)Inventor: Senad DIZDAR
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Publication number: 20190388965Abstract: 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: ApplicationFiled: November 21, 2017Publication date: December 26, 2019Applicant: Höganäs AB (Publ)Inventors: Ermin IMAMOVIC, Björn JOHANSSON
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Patent number: 10513758Abstract: A new pre-alloyed metal based powder, intended to be used in surface coating of metal parts. The powder is deposited using e.g. laser cladding or plasma transfer arc welding (PTA), or thermal spray (e.g. HVOF). The powder is useful for reducing friction and improving wear reducing properties of the deposited coating. Such coatings may also improve machinability. As friction or wear reducing component, inclusions of manganese sulphide or tungsten sulphide in the pre-alloyed powder may be used.Type: GrantFiled: April 2, 2018Date of Patent: December 24, 2019Assignee: HÖGANÄS AB (PUBL)Inventors: Owe Mars, Senad Dizdar, Philippe Szabo, Thierry Calmes
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Patent number: 10465268Abstract: The present invention provides a low cost pre-alloyed iron based powder which has high compressibility, capable of rendering a compacted and sintered component high green density, (GD), and high sintered density, (SD). Also, a method or process for producing components, especially gears, including compaction of powder mixture containing the pre-alloyed iron-based powder, sintering of the compacted component, Low Pressure carburizing, (LPC), High Pressure Gas Quenching, (HPGQ), and tempering, is provided. In one embodiment, the process includes high temperature sintering. Other aspects of the present invention include a powder mixture containing the pre-alloyed iron based powder and components produced by the new process from the powder mixture. Such carburized components exhibit a hard surface combined with a softer and tougher core, necessary properties for e.g. automotive gears subjected to harsh environment.Type: GrantFiled: September 15, 2015Date of Patent: November 5, 2019Assignee: HÖGANÄS AB (PUBL)Inventor: Ola Bergman
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Patent number: 10458006Abstract: A laser cladding or plasma transferred arc overlay welding process may be used advantageously to apply and to control the material properties of a coating designed for protecting the substrate against wear, corrosion and oxidation at elevated temperature. Furthermore, a laser cladding or plasma transferred arc overlay welding process may be used to apply the coating alloy materials in applications where traditional thermal spray or weld-applied coatings are not practical. By using these welding methods very good bonding is achieved by fusion during welding. At the same time the properties of the clad layer is preserved by the limited dilution typical of these two welding methods compared traditional overlay welding, by e.g. Gas Tungsten Arc Welding and the like.Type: GrantFiled: March 17, 2016Date of Patent: October 29, 2019Assignee: HÖGANÄS AB (PUBL)Inventor: Sven Bengtsson
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Publication number: 20190308241Abstract: 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: ApplicationFiled: November 15, 2017Publication date: October 10, 2019Applicant: Höganäs AB (Publ)Inventors: Eva LUNDIN, Magalie DARNIS, Sofia NILSSON, Anders FLODIN
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Publication number: 20190309399Abstract: Embodiments of the present invention may provide a new stainless steel powder suitable for manufacturing of duplex sintered stainless steels. Embodiments of the present invention may also relate to a method for producing the stainless steel powder, the duplex sintered stainless steel as well as methods for producing the duplex sintered stainless steel.Type: ApplicationFiled: December 1, 2017Publication date: October 10, 2019Applicant: Höganäs AB (Publ)Inventor: Sunil Badwe
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Publication number: 20190300374Abstract: Powder metallurgy, in particular production of tungsten monocarbide spherical powders, which is a major component of metalloceramic hard alloys used for manufacture of tools, drill bits, steel alloying, wear-resistant coating cladding at elements operating in intensive wear conditions. The method includes melting of the starting material, and melt atomization with forming of spherical powder. As starting material a tungsten monocarbide grit is used. Melting and atomization of the material is implemented by continuous filling of grit into a rotating crucible of a centrifugal atomization device under an inert atmosphere and melting it by a plasma arc. After that an annealing of the obtained powder is made at a temperature of 1200-1400° C. during a time necessary for W2C breakup with subsequent cooling of the powder in a furnace. And, the production of tungsten monocarbide spherical powder with WC content of more than 70%.Type: ApplicationFiled: July 21, 2017Publication date: October 3, 2019Applicant: Höganäs AB (Publ)Inventors: Ruslan Alekseevich SHEVCHENKO, Alexander Yurievich VAKHRUSHIN, Andrey Pavlovich CHUKANOV
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Publication number: 20190279805Abstract: An inductive device and method for manufacturing an inductive device. The inductive device including: a magnetic core forming a void, the magnetic core including an outer and inner core portion, the magnetic core forming a first gap between a first part of the inner core portion a second part of the magnetic core, the first part of the inner core portion including an inner surface defining a first through hole; a sealing member accommodated at least partly in the first through hole, the sealing member including an outer surface forming a first seal with the inner surface defining the first through hole, such that at least a part of the first through hole is sealed from the first gap; a winding accommodated in the void of the magnetic core, the winding defining a first axial direction; and a cured material provided within at least a part of the first gap.Type: ApplicationFiled: October 27, 2017Publication date: September 12, 2019Applicant: Höganäs AB (Publ)Inventor: Fredrik AF EKSTRÖM
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Publication number: 20190267181Abstract: An inductive device and a manufacturing method. The inductive device including: a magnetic core forming a void and a void opening; a winding accommodated in the void of the magnetic core; at least one lead wire extending from the winding; a cured material provided at least at a part of the void opening; and at least one rigid terminal element connected to the winding via the at least one lead wire, the at least one rigid terminal element being partly embedded in and protruding from the cured material.Type: ApplicationFiled: October 27, 2017Publication date: August 29, 2019Applicant: Höganäs AB (Publ)Inventor: Fredrik AF EKSTROM
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Patent number: 10392274Abstract: A device for electrocoagulation to treat a process stream, such as water, wastewater, or industrial waste. Also, a method to treat a process stream, such as water or wastewater, or industrial waste, utilizing said device. An electrocoagulation device configured to treat a process stream, the device including a cathode; an anode, wherein the anode is porous and water permeable; and a pressure system, wherein the pressure system is configured to flow at least 95% of the process stream through the anode.Type: GrantFiled: September 8, 2017Date of Patent: August 27, 2019Assignee: HÖGANÄS AB (PUBL)Inventors: Kyle Unger, Madan Tandukar, Paul Endler
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Patent number: 10384313Abstract: A brazing filler metal with excellent wetting behavior on stainless steel base material is provided. The brazing filler metal produces a brazed joint with high strength and good corrosion resistance. The brazing filler metal is suitable for brazing stainless steel and other materials where corrosion resistance and high strength is required. Typical examples of applications are heat exchangers and catalytic converters. The iron-chromium based brazing filler metal powder comprises: 11-35 wt % chromium, 0-30 wt % nickel, 2-20 wt % copper, 2-10 wt % silicon, 4-10 wt % phosphorous, 0-10 wt % manganese, and at least 20 wt % iron, and if Si is equal to or less than 6 wt % then P should be above 8 wt %, and if P is less or equal to 8 wt % then Si should be above 6 wt %.Type: GrantFiled: September 17, 2010Date of Patent: August 20, 2019Assignee: HÖGANÄS AB (PUBL)Inventor: Ulrika Persson
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Publication number: 20190177820Abstract: A method of producing a diffusion alloyed powder having an iron or iron-based core powder having particles of an alloying powder containing Cu and Ni bonded to the surface of the core particles, including providing a unitary alloying powder capable of forming particles of a Cu and Ni containing alloy, mixing the unitary alloying powder with the core powder, and heating the mixed powders in a non-oxidizing or reducing atmosphere to a temperature of 500-1000° C. during a period of 10-120 minutes to convert the alloying powder into a Cu and Ni containing alloy, so as to diffusion bond particles of the Cu and Ni alloy to the surface of the iron or iron-based core powder.Type: ApplicationFiled: December 5, 2018Publication date: June 13, 2019Applicant: HÖGANÄS AB (PUBL)Inventor: Mats LARSSON
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Publication number: 20190084039Abstract: The present invention concerns an iron-based powder composition comprising, in addition to an iron-based powder, a minor amount of a machinability enhancing additive, said additive comprising at least halloysite. The invention further concerns the use of the machinability enhancing additive and a method for producing an iron-based sintered component for easy machining.Type: ApplicationFiled: March 13, 2017Publication date: March 21, 2019Applicant: Hoganas AB (Publ)Inventor: Bo Hu
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Publication number: 20190060992Abstract: 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: ApplicationFiled: January 31, 2017Publication date: February 28, 2019Applicant: HÖGANÄS AB (PUBL)Inventors: Ann-Christin Hellsen, Zhou Ye
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Patent number: 10173196Abstract: The present invention concerns 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 consists of or comprises 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: GrantFiled: February 7, 2012Date of Patent: January 8, 2019Assignee: HÖGANÄS AB (PUBL)Inventors: Avinash Gore, Bo Hu, Sydney Luk
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Publication number: 20180301278Abstract: Disclosed herein are embodiments of an inductive device comprising: a winding defining an axial direction; a coil former; and a magnetic core comprising a base core portion from which an outer core portion and an inner core portion extend in the axial direction so as to form a void for accommodating the coil former and the winding; wherein the coil former comprises one or more walls together defining a void for receiving the winding and separating the winding from the inner core portion and from the outer core portion.Type: ApplicationFiled: April 27, 2016Publication date: October 18, 2018Applicant: HÖGANÄS AB (PUBL)Inventor: Fredrik AF EKSTRÖM
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Publication number: 20180272423Abstract: A new iron-based powder containing a plurality of composite particles composed of a ferritic iron or iron-based porous 5 structural particles having at least one particulate friction modifier distributed in the pores and cavities of the structural particles and further containing at least one particulate stabilizer-sealer. The composite particle is especially suited to be used as a functional material in friction formulations such as brake pads and enable replacement of copper or copper-based materials used in such friction 10 material formulations.Type: ApplicationFiled: September 29, 2016Publication date: September 27, 2018Applicant: HÖGANÄS AB (PUBL)Inventor: Bo HU
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Publication number: 20180223396Abstract: A new pre-alloyed metal based powder, intended to be used in surface coating of metal parts. The powder is deposited using e.g. laser cladding or plasma transfer arc welding (PTA), or thermal spray (e.g. HVOF). The powder is useful for reducing friction and improving wear reducing properties of the deposited coating. Such coatings may also improve machinability. As friction or wear reducing component, inclusions of manganese sulphide or tungsten sulphide in the pre-alloyed powder may be used.Type: ApplicationFiled: April 2, 2018Publication date: August 9, 2018Applicant: HOGANAS AB (PUBL)Inventors: Owe Mars, Senad Dizdar, Philippe Szabo, Thierry Calmes