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公开(公告)号：US10591217B2
公开(公告)日：2020-03-17
申请号：US15340671
申请日：2016-11-01
申请人： A. Finkl & Sons Co.
发明人： Algirdas Underys
IPC分类号： H05B3/60 , F27D11/10 , F27B3/08 , F27D19/00 , F27D7/06 , F27D9/00 , H05B7/07 , H05B7/109 , H05B7/156 , H05B7/20 , F27B14/04 , H05B7/148
摘要： A control system for a vacuum arc remelting (VAR) process for a metal includes a direct current (DC) power source, a ram drive, voltage drip short sensor, and a controller, which includes a processor. The drip short sensor may be configured to measure a drip short frequency of the electric arc over a period of time. The controller is configured to determine a real time arc gap length between the electrode tip and the melt pool based on a correlation between the drip short frequency and arc gap length. The controller is further configured to control power input to the electrode by the DC power supply by determining an input power level to input to the electrode based on the real time arc gap length, the input power level configured to generate a desired arc gap length, by the DC power supply, at the input power level.
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公开(公告)号：US20180340734A1
公开(公告)日：2018-11-29
申请号：US15952325
申请日：2018-04-13
申请人： SMS Group GmbH
发明人： Guido Kleinschmidt , Jan Bader , Klaus Schmale , Rolf Best , Alexander Bergs , Thomas Henkel , Detlef Strieder , Peter Starke , Markus Ertl , Juergen Kunze
摘要： The invention relates to an electric arc furnace and a method for operating same. The electric arc furnace comprises a lower vessel and a lid 120 placed on said lower vessel. The lower vessel has a tapping device for tapping molten metal. At least one electrode protrudes through the lid into the interior of the electric arc furnace, said electrode being held by an electrode holding device. A supply voltage device 150 is provided for supplying an electric direct current or alternating current to the electrode 130. The aim of the invention is to allow a continuous operation of the electric arc furnace. This is achieved in that the electrode holding device has an electrode adjusting device for adjusting the electrode dependent on the wear of the electrode and an electrode nippling device for nippling the electrode during the operation of the electric arc furnace. According to the invention, both the electrode adjusting device as well s the electrode nippling device 144 operate when the supply voltage of the electrode is switched on.
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3.发明申请公开(公告)号：US20180120029A1
公开(公告)日：2018-05-03
申请号：US15340671
申请日：2016-11-01
申请人： A. Finkl & Sons Co.
发明人： Algirdas Underys
摘要： A control system for a vacuum arc remelting (VAR) process for a metal includes a direct current (DC) power source, a ram drive, voltage drip short sensor, and a controller, which includes a processor. The drip short sensor may be configured to measure a drip short frequency of the electric arc over a period of time. The controller is configured to determine a real time arc gap length between the electrode tip and the melt pool based on a correlation between the drip short frequency and arc gap length. The controller is further configured to control power input to the electrode by the DC power supply by determining an input power level to input to the electrode based on the real time arc gap length, the input power level configured to generate a desired arc gap length, by the DC power supply, at the input power level.
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公开(公告)号：US20160205729A1
公开(公告)日：2016-07-14
申请号：US14902620
申请日：2014-06-25
申请人： OUTOTEC (FINLAND) OY
发明人： Janne OLLILA , Ari CEDER , Seppo JUVONEN , Tom RÖNNBERG
摘要： An electrode slipping device comprises an upper holder and a lower holder, both holders containing one or more clamping shoes and one or more clamping cylinders in cooperation with the clamping shoes. The clamping shoes are operable between a position where the electrode is clamped and a position where the electrode is unclamped. The clamping cylinder is connected to the electrode holder by first fastening means and to the clamping shoe by second fastening means such that the clamping cylinder can be released from engagement with the holder by unlocking both sets of fastening means.
摘要翻译： 电极滑动装置包括上支架和下支架，两个支架包含一个或多个夹紧板以及一个或多个夹紧缸，与夹紧配合件配合。 夹紧鞋可在电极被夹紧的位置和电极被松开的位置之间操作。 夹紧缸通过第一紧固装置连接到电极夹持器，并通过第二紧固装置连接到夹紧靴，使得夹紧筒可以通过解锁两组紧固装置而与夹持器脱离啮合。
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公开(公告)号：US20050259711A1
公开(公告)日：2005-11-24
申请号：US10850170
申请日：2004-05-20
CPC分类号： H05B7/102
摘要： A system is disclosed for lowering (“slipping”) and/or raising (“back slipping”) electrodes relative to an electrode column. The system includes an electrode column having at least one slipping sleeve and a power clamp, each of which apply a radial clamping force to the electrode. The magnitudes of the clamping forces are selected such that application of a downwardly directed axial force on the one or more slipping sleeves, in combination with the weight of the electrode, are sufficient to overcome the resistive force of the power clamp, resulting in downward movement of the electrode without release of the clamping forces. Electrode columns having two movable slipping sleeves are also capable of raising the electrode relative to the furnace without release of the clamping forces.
摘要翻译： 公开了一种用于相对于电极柱降低（“滑动”）和/或升高（“后滑”）电极的系统。 该系统包括具有至少一个滑动套筒和动力夹具的电极柱，每个滑动套筒向电极施加径向夹紧力。 选择夹紧力的大小，使得在一个或多个滑动套管上施加向下定向的轴向力与电极的重量相结合足以克服动力夹的阻力，导致向下运动 的电极而不释放夹紧力。 具有两个可动滑动套筒的电极柱也能够相对于炉子升高电极而不释放夹紧力。
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公开(公告)号：US4612650A
公开(公告)日：1986-09-16
申请号：US719965
申请日：1985-04-04
申请人： Sven-Einar Stenkvist
发明人： Sven-Einar Stenkvist
CPC分类号： F27D21/0021 , C21C5/5229 , F27D11/10 , H05B7/10 , Y02P10/216
摘要： A DC arc furnace comprising a furnace vessel having a hearth and a side wall extending upwardly from the hearth, conductive means for conducting DC through the hearth from its outside to a melt in the hearth, an arcing electrode, a substantially horizontal arm having a holder holding the electrode substantially vertically above the hearth, a substantially vertical mast from which the arm extends, and means for connecting DC positively to the conductive means and negatively to the electrode so as to form an arc between the electrode and the melt and producing an arc flare to which the side wall is exposed; wherein the improvement comprises means for connecting the arm to the mast so as to permit the arm to be adjustably moved longitudinally to different positions and means for mounting the mast so it can be adjustably rotated to different positions about its axis, whereby the electrode and its arc can be located at different positions horizontally to the side wall.
摘要翻译： 一种直流电弧炉，其特征在于，具有炉底和从所述炉床向上延伸的侧壁的炉容器，用于将来自炉外的DC从炉外进入炉内的熔融物的导电装置，放电电极，基本上水平的臂， 将电极基本垂直地保持在炉膛上方，臂延伸的基本垂直的桅杆，以及用于将DC正向连接到导电装置并与电极负相连的装置，以便在电极和熔体之间形成电弧，并产生电弧 侧壁暴露的耀斑; 其中所述改进包括用于将臂连接到桅杆以便允许臂可纵向移动到不同位置的装置，以及用于安装桅杆的装置，使得其可以可调节地绕其轴线旋转到不同的位置，由此电极及其 电弧可以位于与侧壁水平不同的位置。
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公开(公告)号：US4397028A
公开(公告)日：1983-08-02
申请号：US342855
申请日：1982-01-26
摘要： An electrode support mechanism for use in electric arc melting or smelting furnaces wherein a pair of horizontal, superimposed arms are each provided with clamping devices at their outer end for supporting a vertically disposed electrode depending into an arc furnace. The arms are each supported on a vertical support post; the upper arm is fixed to the post and the lower arm which normally carries the electrode is movable relative to the post to adjust the electrode to maintain a constant arc at the furnace. The movable arm is moved vertically by a jack screw carried by the upper arm and depending into contact with the lower arm. The clamping devices at the ends of the arms are spring-biased toward contact with the electrode, and a linking mechanism is provided to alternately release the arm clamping mechanisms from the electrode under the control of a cam-operated actuating system. The electrode is clamped to the lower clamping arm when the lower clamping arm is operating within its normal range of adjustment, but the electrode is released from the lower arm and clamped to the upper clamping arm whenever it is necessary to move the lower arm independently of the electrode to reposition the lower clamping arm within its normal range of adjustment.
摘要翻译： 一种用于电弧熔化或熔炼炉的电极支撑机构，其中一对水平叠置的臂在其外端各设有夹紧装置，用于支撑垂直设置的电极，该电极依赖于电弧炉。 手臂各自支撑在垂直支撑柱上; 上臂固定在柱上，通常携带电极的下臂可以相对于柱子移动，以调节电极以在炉子上保持恒定的电弧。 可动臂由上臂承载的千斤顶螺丝垂直移动，并与下臂接触。 臂端部的夹持装置被弹簧偏置成与电极接触，并且提供连接机构以在由凸轮操作的致动系统的控制下从电极交替地释放臂夹紧机构。 当下夹臂在其正常调节范围内工作时，电极被夹紧到下夹臂上，但是只要需要独立于下臂就移动下臂，电极从下臂释放并被夹紧到上夹臂 电极将下夹持臂重新定位在其正常调节范围内。
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公开(公告)号：US3725559A
公开(公告)日：1973-04-03
申请号：US3725559D
申请日：1971-11-09
申请人： NAUTNY K , LAKOMSKY V , REZNITSKY A , PILIPCHUK V , CHVERTKO A , SHEKHTER S
发明人： REZNITSKY A , PILIPCHUK V , CHVERTKO A , SHEKHTER S , NAUTNY K , LAKOMSKY V
摘要： A plasmatron drive wherein the plasmatron is combined with the pneumatic drive rod into an integral unit and the pneumatic drive cylinder is provided with a mechanism for fixing the plasmatron in the upper position.
摘要翻译： 一种等离子体驱动器，其中等离子体激元与气动驱动杆组合为一体的单元，并且气动驱动气缸设置有用于将等离子体激光器固定在上部位置的机构。
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9.发明授权
公开(公告)号：US3614284A
公开(公告)日：1971-10-19
申请号：US3614284D
申请日：1970-01-30
发明人： SCHEIDIG HELMUT , HAUFF ALFRED , REIMPELL UWE
摘要： A melting furnace using consumable electrodes furnished with movable current supply leads and a sensitive device for continuously weighing the weight of the electrode and accordingly controlling the electrode feeding movement.
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公开(公告)号：US3602623A
公开(公告)日：1971-08-31
申请号：US3602623D
申请日：1968-09-16
申请人： CONSARC CORP
发明人： WOODING PATRICK J
CPC分类号： H05B7/109 , H05B7/156 , Y02P10/256 , Y02P10/259
摘要： A consumable electrode furnace for simultaneously producing a plurality of ingots, comprising a single hydraulic ram for reciprocably supporting a plurality of electrodes clamped in parallel depending relation. The furnace further includes a plurality of crucibles which are equal to or greater in number than the number of electrode clamps. The furnace also includes only one regulator and set of instrumentation and the melt rate of the electrodes is self-compensating.
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