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公开(公告)号：US09599401B2
公开(公告)日：2017-03-21
申请号：US14249028
申请日：2014-04-09
Applicant: ABB Schweiz AG
Inventor： Michael Lundh , Xiaojing Zhang , Jan-Erik Eriksson , Lidong Teng , Carl-Fredrik Lindberg
CPC classification number: F27D19/00 , C21C5/5211 , C21C2005/5276 , C21C2005/5288 , C22B4/08 , F27B3/085 , F27B3/28 , F27D27/00 , F27D2019/0003 , F27D2019/0006 , Y02P10/216
Abstract: A method and device for controlling a melting and refining process in an electric arc furnace for melting a metal, wherein the electric arc furnace includes molten and solid metal and a slag layer on the surface of the molten metal, wherein an electromagnetic stirrer is arranged for stirring the molten metal. The method includes calculating/determining masses of the molten and solid metal at a point of time, wherein the calculation is based on initial values of the molten and solid metal, an arc power supplied to the electric arc furnace, and temperatures of the molten and solid metal, determining a stirring power based on the calculated/determined masses, and supplying the determined stirring power to the electromagnetic stirrer.
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公开(公告)号：US10919088B2
公开(公告)日：2021-02-16
申请号：US16482585
申请日：2018-01-23
Applicant: ABB SCHWEIZ AG , ArcelorMittal
Inventor： Bengt Rydholm , Fredrik Sandberg , Hongliang Yang , Jan-Erik Eriksson , Jean-Marie Galpin , Bruno Langlet , Jean-Luc Curé , Nicolas Triolet , Thierry Lecoester
IPC: B22D41/62 , B22D11/115 , B22D11/18 , B22D41/18 , B22D41/58
Abstract: A method of controlling an electromagnetic stirrer arranged around a submerged entry nozzle (SEN) of a tundish provided with a stopper rod to control throughput of the tundish, the SEN being configured to provide tapping of molten metal from the tundish and the electromagnetic stirrer being configured to generate a rotating magnetic field in the SEN, wherein the method includes controlling the electromagnetic stirrer to operate only when a gas flow rate through the stopper rod is in a first range of 1.5 NL/min to 20 NL/min.
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公开(公告)号：US10780490B2
公开(公告)日：2020-09-22
申请号：US16620705
申请日：2018-05-29
Applicant: ABB Schweiz AG
Inventor： Martin Tobias Sedén , Anders Lehman , Jan-Erik Eriksson
IPC: B22D11/049 , B22D11/115 , B22D11/18 , B22D11/04 , B22D11/103 , B22D11/12 , B22D11/20 , B22D41/50
Abstract: An electromagnetic brake system for a metal-making process. The electromagnetic brake system includes a two-level magnetic structure, in particular an upper magnetic core structure configured to be mounted to an upper portion of a mold and a lower magnetic core structure configured to be mounted to a lower portion of a mold. Lateral coils on the upper magnetic structure are configured to be controlled to generate a first magnetic field in a first field direction and inner coils are configured to be controlled to generate a second magnetic field in a second field direction, simultaneously with the first magnetic field. The lower magnetic core structure has lower coils which are configured to be controlled to generate a third magnetic field in the first direction simultaneously as the lateral coils and the inner coils generate their fields.
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4.发明申请公开(公告)号：US20200156146A1
公开(公告)日：2020-05-21
申请号：US16620705
申请日：2018-05-29
Applicant: ABB Schweiz AG
Inventor： Martin Tobias Sedén , Anders Lehman , Jan-Erik Eriksson
IPC: B22D11/115 , B22D11/04
Abstract: An electromagnetic brake system for a metal-making process. The electromagnetic brake system includes a two-level magnetic structure, in particular an upper magnetic core structure configured to be mounted to an upper portion of a mold and a lower magnetic core structure configured to be mounted to a lower portion of a mold. Lateral coils on the upper magnetic structure are configured to be controlled to generate a first magnetic field in a first field direction and inner coils are configured to be controlled to generate a second magnetic field in a second field direction, simultaneously with the first magnetic field. The lower magnetic core structure has lower coils which are configured to be controlled to generate a third magnetic field in the first direction simultaneously as the lateral coils and the inner coils generate their fields.
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Patent Agency Ranking
5.发明授权公开(公告)号：US10207318B2
公开(公告)日：2019-02-19
申请号：US15514888
申请日：2014-11-20
Applicant: ABB Schweiz AG
Inventor： Anders Lehman , Jan-Erik Eriksson , Martin Sedén
Abstract: A method of controlling molten metal flow and an electromagnetic brake system for a metal-making process, including: a first magnetic core arrangement having a first and second long sides with Nc teeth, and arranged to be mounted to opposite longitudinal sides of an upper portion of a mould, a first set of coils, each being wound around a respective tooth of the first magnetic core arrangement, and Np power converters, with Np being an integer that is at least two and Nc is an integer that is at least four and evenly divisible with Np, wherein each power converter is configured to feed a DC current to its respective group of 2Nc/Np series-connected coils.
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公开(公告)号：US20170080485A1
公开(公告)日：2017-03-23
申请号：US15308042
申请日：2014-06-16
Applicant: ABB Schweiz AG
Inventor： Conny Svahn , Jan-Erik Eriksson , Lidong Teng
IPC: B22D11/12 , C22C38/04 , C22C38/02 , B22D41/08 , F27D27/00 , B22D11/115 , B22D11/128 , B22D27/02 , C22C38/06 , F27D11/08
CPC classification number: B22D11/122 , B22D11/115 , B22D11/128 , B22D27/02 , B22D41/00 , B22D41/08 , C22C38/02 , C22C38/04 , C22C38/06 , F27B3/12 , F27D11/08 , F27D27/00
Abstract: A non-magnetic steel structure for a steel or aluminium making process, which non-magnetic steel structure is arranged to enable penetration of a magnetic field from an electromagnetic stirrer or electromagnetic brake into a melt in a vessel for molten metal, wherein the non-magnetic steel structure includes manganese in the range 12-40 mass %.
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7.发明申请公开(公告)号：US20190168293A1
公开(公告)日：2019-06-06
申请号：US16266902
申请日：2019-02-04
Applicant: ABB Schweiz AG
Inventor： Conny Svahn , Jan-Erik Eriksson , Martin Sedén
Abstract: A casting mold including a copper plate and a plurality of optical fibers, having a plurality of temperature measuring points for the copper plate while casting. Molten metal is cast into the mold along an axis of, the optical fibers built-in the plate. A method for detecting temperature distribution of a molten metal in a casting mold having at least one copper plate, including determining by calculation or measurement an ideal molten flow of the metal, building-in a plurality of optical fibers into the copper plate based on flow, arranging the optical fibers inside at least the upper part of the copper plate, receiving the measurements of temperatures, and comparing the measurements of temperatures with a calculated/measured distribution of an ideal molten flow.
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8.发明授权公开(公告)号：US10232433B2
公开(公告)日：2019-03-19
申请号：US15748402
申请日：2016-06-28
Applicant: ABB Schweiz AG
Inventor： Conny Svahn , Jan-Erik Eriksson , Martin Sedén
Abstract: A casting mold including a copper plate and a plurality of optical fibers, having a plurality of temperature measuring points for the copper plate while casting. Molten metal is cast into the mold along an axis of, the optical fibers built-in the plate. A method for detecting temperature distribution of a molten metal in a casting mold having at least one copper plate, including determining by calculation or measurement an ideal molten flow of the metal, building-in a plurality of optical fibers into the copper plate based on flow, arranging the optical fibers inside at least the upper part of the copper plate, receiving the measurements of temperatures, and comparing the measurements of temperatures with a calculated/measured distribution of an ideal molten flow.
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9.发明申请公开(公告)号：US20170216909A1
公开(公告)日：2017-08-03
申请号：US15514888
申请日：2014-11-20
Applicant: ABB Schweiz AG
Inventor： Anders Lehman , Jan-Erik Eriksson , Martin Sedén
IPC: B22D11/115 , B22D27/02 , B22D11/04
CPC classification number: B22D11/115 , B22D11/04 , B22D11/11 , B22D11/16 , B22D27/02 , H01F3/00 , H01F7/20
Abstract: A method of controlling molten metal flow and an electromagnetic brake system for a metal-making process, including: a first magnetic core arrangement having a first and second long sides with Nc teeth, and arranged to be mounted to opposite longitudinal sides of an upper portion of a mould, a first set of coils, each being wound around a respective tooth of the first magnetic core arrangement, and Np power converters, with Np being an integer that is at least two and Nc is an integer that is at least four and evenly divisible with Np, wherein each power converter is configured to feed a DC current to its respective group of 2Nc/Np series-connected coils.
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