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公开(公告)号:AU2003257316A1
公开(公告)日:2004-03-11
申请号:AU2003257316
申请日:2003-08-19
Applicant: BEITELMAN LEONID , SEGAL VLADIMIR , ABB INC
Inventor: BEITELMAN LEONID , SEGAL VLADIMIR , CURRAN CHRISTOPHER P
IPC: B22D11/11 , B22D11/115 , F27D27/00
Abstract: Cooling of the electrical coils of an electromagnetic stirrer is effected using a ferrofluid.
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公开(公告)号:BRPI0822471A2
公开(公告)日:2015-06-16
申请号:BRPI0822471
申请日:2008-07-22
Applicant: ABB INC
Inventor: BEITELMAN LEONID S , LAVERS DOUGLAS J , CURRAN CHRISTOPHER P , TALLBACK GOTE
IPC: B22D11/115 , B01F13/08 , B22D27/02
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公开(公告)号:CA2495328C
公开(公告)日:2010-01-26
申请号:CA2495328
申请日:2003-08-19
Applicant: ABB INC
Inventor: SEGAL VLADIMIR , CURRAN CHRISTOPHER P , BEITELMAN LEONID
IPC: B01F15/06 , B22D11/11 , B01F13/08 , B22D11/115 , F01P5/10 , F01P7/14 , F27D27/00 , H02K9/19 , H02K9/197
Abstract: Cooling of the electrical coils of an electromagnetic stirrer is effected using a ferrofluid. An electromagnetic stirrer, comprising: a cylindrical housing having an axial mold tube for receiving molten metal,an inner wall spaced from the mold tube and defining a cooling water flow channel, an electromagnetic stirring assembly surrounding the inner wall and spaced therefrom and from an outer wall, said stirring assembly comprising a yoke, a plurality of magnetic poles and electrical windings mounted on each of the magnetic poles, said plurality of magnetic poles and said electrical windings mounted on the magnetic poles being located in enclosed non-magnetic heat conductive housings filled with dielectric ferrofluid , an annular wall dividing said cylindrical housing into a larger lower chamber in which are located said enclosed non-magnetic heat conductive housings and a smaller upper chamber, said inner wall defining having an inlet to said cooling water flow channel in fluid flow communication with the lower end of said lower chamber and an outlet from said cooling water flow channel in fluid flow communication with the upper end of said upper chamber, a cooling water inlet in fluid flow communication with the upper end of said lower chamber and a cooling water outlet in fluid flow communication with said upper chamber.
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公开(公告)号:WO2004018128A3
公开(公告)日:2004-06-17
申请号:PCT/CA0301209
申请日:2003-08-19
Applicant: ABB INC , BEITELMAN LEONID , SEGAL VLADIMIR , CURRAN CHRISTOPHER P
Inventor: BEITELMAN LEONID , SEGAL VLADIMIR , CURRAN CHRISTOPHER P
IPC: B22D11/11 , B22D11/115 , F27D27/00 , F27D23/04
CPC classification number: B22D11/115
Abstract: Cooling of the electrical coils of an electromagnetic stirrer is effected using a ferrofluid. An electromagnetic stirrer, comprising: a cylindrical housing having an axial mold tube for receiving molten metal,an inner wall spaced from the mold tube and defining a cooling water flow channel, an electromagnetic stirring assembly surrounding the inner wall and spaced therefrom and from an outer wall, said stirring assembly comprising a yoke, a plurality of magnetic poles and electrical windings mounted on each of the magnetic poles, said plurality of magnetic poles and said electrical windings mounted on the magnetic poles being located in enclosed non-magnetic heat conductive housings filled with dielectric ferrofluid , an annular wall dividing said cylindrical housing into a larger lower chamber in which are located said enclosed non-magnetic heat conductive housings and a smaller upper chamber, said inner wall defining having an inlet to said cooling water flow channel in fluid flow communication with the lower end of said lower chamber and an outlet from said cooling water flow channel in fluid flow communication with the upper end of said upper chamber, a cooling water inlet in fluid flow communication with the upper end of said lower chamber and a cooling water outlet in fluid flow communication with said upper chamber.
Abstract translation: 使用铁磁流体来实现电磁搅拌器的电线圈的冷却。 一种电磁搅拌器,包括:圆柱形壳体,其具有用于接收熔融金属的轴向模具管,与所述模具管间隔开并限定冷却水流动通道的内壁;围绕所述内壁并与其间隔开的电磁搅拌组件 所述搅拌组件包括轭,安装在每个磁极上的多个磁极和电绕组,所述多个磁极和安装在磁极上的所述电绕组位于封闭的非磁性导热壳体中 介质铁磁流体,环形壁,将所述圆柱形壳体分成更大的下腔室,其中位于所述封闭的非磁性导热壳体和较小的上腔室中,所述内壁限定有流体流动的所述冷却水流动通道的入口 与所述下腔室的下端连通并且与所述冷却水槽的出口连通 w通道与所述上腔室的上端流体连通,与所述下腔室的上端流体连通的冷却水入口和与所述上腔室流体连通的冷却水出口。
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公开(公告)号:AR071042A1
公开(公告)日:2010-05-19
申请号:ARP090101049
申请日:2009-03-25
Applicant: ABB INC
Inventor: BEITELMAN LEONID S , LAVERS J DOUGLAS , CURRAN CHRISTOPHER P , TALLBACK GOTE
IPC: B22D11/115 , B22D27/02
Abstract: Se describen un método y un aparato para agitacion electromagnética de metales fundidos en un estado avanzado de solidificacion, tal como el que se puede utilizar en la colada continua de palanquillas o tochos de acero. Se proporcionan al menos un primer y un segundo agitador para generar un primer y un segundo campo magnético giratorio de una frecuencia diferente en torno a un eje de metal fundido bajo solidificacion. Los agitadores están dispuestos en torno al metal fundido con la suficiente proximidad entre sí de manera que sus respectivos campos magnéticos se superpongan para producir un campo magnético modulado. Los campos magnéticos de los respectivos agitadores pueden tener direcciones de rotacion ya sea comunes, u opuestas. La agitacion modulada producida por los campos magnéticos trae como resultado flujos primarios y secundarios oscilantes y, por lo tanto, turbulencia dentro del lote fundido, en la region en la cual la temperatura del material fundido en su eje central está por debajo del nivel de temperatura líquidus y se forma al menos el 10% del material sustancialmente solidificado. El flujo turbulento que crea este método de agitacion detiene la formacion de las estructuras cristalinas en el lote fundido y mezcla el material fundido enriquecido con soluto de la region central con el volumen del lote, lo cual posteriormente trae como resultado mejoras en la estructura de solidificacion y en la calidad interna general de los productos moldeados.
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公开(公告)号:AU2003257316B2
公开(公告)日:2008-07-03
申请号:AU2003257316
申请日:2003-08-19
Applicant: ABB INC
Inventor: SEGAL VLADIMIR , BEITELMAN LEONID , CURRAN CHRISTOPHER P
IPC: B22D11/11 , B22D11/115 , F27D27/00
Abstract: Cooling of the electrical coils of an electromagnetic stirrer is effected using a ferrofluid.
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公开(公告)号:CA2495328A1
公开(公告)日:2004-03-04
申请号:CA2495328
申请日:2003-08-19
Applicant: ABB INC
Inventor: SEGAL VLADIMIR , CURRAN CHRISTOPHER P , BEITELMAN LEONID
IPC: B22D11/11 , B22D11/115 , F27D27/00 , F27D23/04
Abstract: Cooling of the electrical coils of an electromagnetic stirrer is effected using a ferrofluid. An electromagnetic stirrer, comprising: a cylindrical housing having an axial mold tube for receiving molten metal,an inner wall spaced from the mold tube and defining a cooling water flow channel, an electromagnetic stirring assembly surrounding the inner wall and spaced therefrom and from an outer wall, said stirring assembly comprising a yoke, a plurality of magnetic poles and electrical windings mounted on each of the magnetic poles, said plurality of magnetic poles and said electrical winding s mounted on the magnetic poles being located in enclosed non-magnetic heat conductive housings filled with dielectric ferrofluid , an annular wall dividing said cylindrical housing into a larger lower chamber in which are located said enclosed non-magnetic heat conductive housings and a smaller upper chamber, said inner wall defining having an inlet to said cooling wate r flow channel in fluid flow communication with the lower end of said lower chamber and an outlet from said cooling water flow channel in fluid flow communication with the upper end of said upper chamber, a cooling water inle t in fluid flow communication with the upper end of said lower chamber and a cooling water outlet in fluid flow communication with said upper chamber.
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公开(公告)号:UA102094C2
公开(公告)日:2013-06-10
申请号:UAA201012415
申请日:2008-07-22
Applicant: ABB INC
Inventor: BEITELMAN LEONID S , LAVERS J DOUGLAS , CURRAN CHRISTOPHER P , TALLBACK GOTE
IPC: B22D11/11 , B01F13/08 , B22D11/115 , B22D27/02
Abstract: Описаніспосібі пристрій, якіпризначенідляелектромагнітногоперемішуваннярозплавленихметалівнапізнійстадіїтвердінняі якіможутьбутивикористаніприбезперервномулиттісталевихзаготовокі блюмсів. Передбачаютьщонайменшепершийі другийпристроїперемішування, призначенідлястворенняпершогоі другогомагнітнихполів, щообертаютьсяз різноючастотоювідносноосі, щопроходитьчерезрозплавленийметал, щотвердіє. Пристроїперемішуваннярозташованінавколорозплавленогометалудостатньоблизькоодиндоодноготак, щоїхвідповіднімагнітніполянакладаютьсяз метоюотриманнямодульованогомагнітногополя. Напрямиобертаннямагнітнихполіввідповіднихпристроївперемішуванняможутьабоспівпадатиабобутипротилежними. Модульованеперемішування, отриманезавдякимагнітнимполям, призводитьдопоявипервинногоі вторинногопотоків, щоколиваються, і, отже, допоявитурбулентностів основніймасірозплавув області, вякійтемпературарозплавуменшетемпературиліквідусуі вякійсформованощонайменше 10 % посутізатверділогорозплавленогоматеріалу. Турбулентнийпотік, створенийзавдякицьомуспособуперемішування, руйнуєформуваннякристалічнихструктурв основніймасірозплавуі змішуєрозплавз великимвмістомрідкоїфази, розташованийв центральнійобластіосновногооб'єму, щоприводитьдополіпшеньзатверділоїструктуриі поліпшеннязагальноївнутрішньоїякостілитихвиробів.
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公开(公告)号:MX2010010410A
公开(公告)日:2010-12-06
申请号:MX2010010410
申请日:2008-07-22
Applicant: ABB INC
Inventor: BEITELMAN LEONID S , CURRAN CHRISTOPHER P , TALLBACK GOTE , LAVERS J DOUGLAS
IPC: B22D11/115 , B01F13/08 , B22D27/02
Abstract: Se describe un método y un aparato para la agitación electromagnética de metales fundidos en una etapa avanzada de solidificación, como la que puede ser utilizada en la fundición continua de placas de acero y esponjas de hierro. Se proporcionan al menos primeros y segundos agitadores para generar primero y segundo campos magnéticos giratorios de una frecuencia diferente alrededor de un eje de metal fundido en solidificación. Los agitadores están arreglados alrededor del metal fundido suficientemente cerca entre sí, de modo que sus campos magnéticos respectivos se superpongan para producir un campo magnético modulado. Los campos magnéticos de los agitadores respectivos pueden tener direcciones rotacionales comunes u opuestas. La agitación modulada producida por los campos magnéticos da como resultado flujos oscilantes primario y secundario y en consecuencia turbulencia dentro de la masa fundida en la región donde la temperatura del metal sobre su eje central es inferior al nivel de los líquidos y se forma al menos 10% de material sustancialmente solidificado. El flujo turbulento creado por este método de agitación perturba la formación de estructuras cristalinas en la masa fundida y mezcla la masa fundida enriquecida en soluto de la región central con el volumen de masa, lo que da como resultado posteriormente en mejoras de la estructura de solidificación y calidad interna total de los productos fundidos.
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公开(公告)号:CA2719299A1
公开(公告)日:2009-10-01
申请号:CA2719299
申请日:2008-07-22
Applicant: ABB INC
Inventor: BEITELMAN LEONID S , CURRAN CHRISTOPHER P , LAVERS J DOUGLAS , TALLBACK GOTE
IPC: B22D11/115 , B01F13/08 , B22D27/02
Abstract: A method and apparatus for electromagnetic stirring of molten metals at an advanced stage of solidification, as may be used in continuous casting of steel billets and blooms, are disclosed. At least first and second stirrers are provided for generating first and second rotating magnetic fields of a differing frequency about an axis of solidifying molten metal. The stirrers are arranged about the molten metal in sufficiently close proximity to each other so that their respective magnetic fields superpose to produce a modulated magnetic field. The magnetic fields of the respective stirrers may either have common or opposing rotational directions. The modulated stirring produced by the magnetic fields results in oscillating primary and secondary flows and hence turbulence within the melt bulk in the region wherein temperature of the melt on its central axis is below the liquidus level and at least 10% of substantially solidified material is formed. Turbulent flow created by this stirring method disrupts formation of crystalline structures in the melt bulk and mixes solute enriched melt of the central region with the bulk volume which subsequently results in improvements of the solidification structure and overall internal quality of the cast products.
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