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39 条记录 (耗时 0.013 秒)

    APPARATUS AND METHOD TO ELECTRICALLY POWER AN ELECTRIC ARC FURNACE
    35.
    发明公开
    APPARATUS AND METHOD TO ELECTRICALLY POWER AN ELECTRIC ARC FURNACE 审中-公开

    公开(公告)号：EP3518622A1

    公开(公告)日：2019-07-31

    申请号：EP19156550.6

    申请日：2015-09-17

    申请人： Danieli Automation S.P.A.

    发明人： Mordeglia, Antonello ,  Gigante, Enzo

    IPC分类号： H05B7/148 ,  F27B3/28 ,  F27B3/08 ,  H05B7/144 ,  H05B7/152 ,  H05B7/20 ,  F27D99/00 ,  F27D11/08

    摘要： An electric power apparatus for an electric arc furnace (60) comprises at least one electrode (62) and is connectable to a power network (50) to supply to the electrode (62) the electric energy to generate an electric arc to melt a metal mass. The apparatus comprises an electric regulation unit (12) interposed and connected to the power network (50) and to the electrode (62) and configured to regulate at least one electric quantity for powering the electrode (62). The apparatus comprises at least one detection device (20, 22) to detect the electric quantity, interposed between the electrode (62) and the electric regulation unit (12), a positioning device (46) to move the at least one electrode (62) nearer to/away from the metal mass to be melted and a control and command unit (16).

    VERFAHREN UND VORRICHTUNG ZUM BETRIEB EINES ELEKTROLICHTBOGENOFENS
    37.
    发明授权
    VERFAHREN UND VORRICHTUNG ZUM BETRIEB EINES ELEKTROLICHTBOGENOFENS 有权
    方法和一种用于操作电弧炉

    公开(公告)号：EP1779705B1

    公开(公告)日：2008-03-05

    申请号：EP05785448.1

    申请日：2005-08-11

    申请人： SIEMENS AKTIENGESELLSCHAFT

    发明人： MATSCHULLAT, Thomas ,  STÜRMER, Uwe

    IPC分类号： H05B7/20

    CPC分类号： H05B7/20 ,  C21C5/5211 ,  C21C2005/5288 ,  F27B3/065 ,  F27B3/28 ,  Y02P10/216

    摘要： The invention relates to a method for operating an electric-arc furnace comprising at least one electrode and one tapping method step. At the beginning of the tapping step, the energy supply to the at least one electrode (2) of the electric-arc furnace (1) is not stopped and the energy is still supplied to the at least one electrode (2) even during the tapping step. Said step can begin before the traditional operational modes of an electric-arc furnace (1). This saves time, reduces the consumption of electrodes and energy, and also increases productivity. The desired energy content of the raw steel (8) is secured by the pre-calculation of the alteration of the energy content of the melt (4) during the tapping step and the danger of over-heating is compensated.

    HEAT SPREADER CONSTRUCTIONS, INTEGRATED CIRCUITRY, METHODS OF FORMING HEAT SPEADER CONTRUICTIONS, AND METHODS OF FORMING INTEGRATED CIRCUITRY
    38.
    发明公开
    HEAT SPREADER CONSTRUCTIONS, INTEGRATED CIRCUITRY, METHODS OF FORMING HEAT SPEADER CONTRUICTIONS, AND METHODS OF FORMING INTEGRATED CIRCUITRY 审中-公开
    热分布外观设计，集成电路，方法产生热量分配结构和方法集成电路生产

    公开(公告)号：EP1731002A2

    公开(公告)日：2006-12-13

    申请号：EP05735523.2

    申请日：2005-03-29

    申请人： Honeywell International, Inc.

    发明人： DEAN, Nancy, F. ,  RASIAH, Ignatius, J.

    IPC分类号： H05B7/20

    CPC分类号： H01L23/3735 ,  H01L23/04 ,  H01L23/36 ,  H01L23/373 ,  H01L23/3732 ,  H01L2924/0002 ,  H01L2924/01079 ,  Y10T29/49353 ,  H01L2924/00

    摘要： The invention includes a heat spreader (10) having a base (20) which has a perimeter surface surrounding a heat-receiving region. A frame portion (30) interfaces the perimeter surface and has an opening traversing a thickness of the frame (30). The invention includes a method of forming a heat spreader construction by forming a base portion (20) having a perimeter region surrounding a heat-receiving surface. An independent frame portion (30) is joined to the base portion (20). The invention includes integrated circuitry (104) having a heat spreader construction (10) in thermal communication with a heat-generating device (104). The heat spreader (10) has a base (20) having a heat-receiving surface and a perimeter surface which interfaces a frame portion (30). The invention includes methodology for forming integrated circuitry which includes providing an integrated circuitry board (102) having a heat generating device (104) mounted thereon, and providing a multi-part heat spreader (10) in thermal communication with the heat-generating device (104).

    Pfannenofen
    39.
    发明公开
    Pfannenofen 失效
    钢包炉。

    公开(公告)号：EP0103534A2

    公开(公告)日：1984-03-21

    申请号：EP83710057.7

    申请日：1983-08-31

    申请人： ASEA AB

    发明人： Stenkvist, Sven-Einar, Dipl.-Ing.

    IPC分类号： F27D11/08 ,  H05B7/20

    CPC分类号： H05B7/20 ,  C21C5/5205 ,  C21C5/5229 ,  C21C7/0075 ,  F27D11/08 ,  Y02P10/216

    摘要： Pfannenofen mit einer zentral angeordneten Lichtbogenelektrode (6), mit mindestens einem im Boden oder in der Wand der Pfanne oder des Ofens angeordneten Bodenkontakt und mit einer um die Pfanne herum angeordneten mit Gleichstrom gespeisten Spule (7). Gemäss der Erfindung ist die Spule (7) derart um die Pfanne in halber Höhe derselben oder höher unter Umschliessung von Teilen der Schmelze angeordnet, dass das von der Spule (7) erzeugte magnetische Feld in Zusammenwirkung mit den Gleichstrompfaden in der Schmelze eine im' wesentlichen tangential gerichtete Umrührkraft in der Schmelze erzeugt zusätzlich zu den üblichen von dem Stromfluss allein verursachten Umrührkräften.
    Zur Zusammenfassung gehört die einzige Figur.

    摘要翻译： 钢包炉具有设置在中央的电弧电极（6），用至少一个布置在底部或在钢包或熔炉地面接触的壁和具有设置围绕所述盘周围的直流馈线圈（7）。 根据本发明，以这样的方式向盘的线圈（7）的一半高度相同或更高的位于下熔体的容纳系统部件，该线圈（7）产生的合作磁场与在直流路径熔融基本上切向的 搅动定向在除了通常的单独引起的电流流动产生Umrührkräften熔体。