公开(公告)号：US06169265A

公开(公告)日：2001-01-02

申请号：US09101710

申请日：1998-07-16

申请人： Pavel Dvoskin ,  Valery Zlochevsky ,  Ran Rosen

发明人： Pavel Dvoskin ,  Valery Zlochevsky ,  Ran Rosen

IPC分类号： B23K1000

CPC分类号： H05H1/48

摘要： A main electrode (2, 20, 30, 44, 127) for plasma arc generator, a generator (50, 70, 80, 126) comprising same and a process for treatment of solidifying liquid metal by the mentioned generator, wherein the main electrode in association with a counter electrode (15, 28, 42, 54, 73, 86, 122) provides a two-rail structure capable of generating a plasma arc discharge displaceable along a closed path uninterruptedly. The uninterrupted movement of the arc discharge is achieved by a specific design of the main electrode. The electrode comprises an essentially tubular body having a first rim (3, 24, 33, 89) usually connected to a d.c. power source via at least one connector site (12), and a second, working rim (4, 27, 34, 46, 63, 78, 90) serving for the electric arc discharge. The tubular body is divided by at least one slot (gap) (6, 22, 32, 49, 52, 88) associated with one connector site and extending between the first and second rims so that it forms at the second rim region a second rim gap. Two sides of the second rim gap are an arc transmitting (16, 36) and an arc receiving (17, 35) zones, respectively. Mutual positions of these two zones and the associated connector site are such, that when the arc column is created and displaces along the second rim, it will always be transmitted from the transmitting zone to the receiving zone at a location positioned downstream from the projection of the associated connector site to the second rim (in respect of the direction of the plasma arc movement). Owing to this arrangement the arc column will cross the second rim gaps uninterruptedly.

摘要翻译： 用于等离子体电弧发生器的主电极（2,20,30,44,127），包括其的发电机（50,70,80,126）和通过所述发电机处理液态金属的处理方法，其中主电极 与对电极（15,28,42,54,73,86,122）相关联地提供能够产生沿着闭合路径不间断地移位的等离子体电弧放电的双轨结构。 电弧放电的不间断运动通过主电极的具体设计来实现。 电极包括基本上管状的主体，其具有通常连接到直流电的第一边缘（3,24,33,89）。 电源通过至少一个连接器位置（12）和第二工作边缘（4,27,34,46,63,78,90）用于电弧放电。 管状体被与一个连接器部位相关联的至少一个槽（间隙）（6,22,32,49,52,88）分开，并在第一和第二边缘之间延伸，使得其在第二边缘区域处形成第二 边缘间隙。 第二边缘间隙的两侧分别是弧形传递（16,36）和电弧接收（17,35）区域。 这两个区域和相关联的连接器位置的相互位置是这样的：当弧形柱被创建并且沿着第二边缘移位时，它将总是从位于下游的位置处的传输区域传送到接收区域 相关联的连接器位置到第二边缘（关于等离子弧运动的方向）。 由于这种布置，弧柱将不间断地穿过第二边缘间隙。

公开(公告)号：US20050034840A1

公开(公告)日：2005-02-17

申请号：US10487447

申请日：2002-08-20

申请人： Pavel Dvoskin ,  Valery Zlochevsky ,  Dror Nadam

发明人： Pavel Dvoskin ,  Valery Zlochevsky ,  Dror Nadam

IPC分类号： B22D11/11 ,  B22D27/06 ,  B22D27/02 ,  B22D11/00

CPC分类号： B22D27/06 ,  B22D11/11

摘要： A method and apparatus for stirring and treating continuous and semi-continuous casting of metallic rods (12). The apparatus comprising: a stand (30) for suspending at least one electric arc electrode (24) over the upper surface of a metallic casting (14) after or during pouring, at least one electrode (24) for forming a moving electric arc (38) over the upper surface of the mettalic casting being cast, a second electrode, being the liquid metal (14), for completion of an electric circuit including said electric arc (38) and the liquid metal (14); and control means (34), connected between said apparatus and a power supply (36) and arranged to supply power to the plasma arc electrodes (14, 24), for monitoring the parameters of the electric arc (38). The invention also provides a method for casting the metallic rods (12) by using the above described apparatus.

摘要翻译： 一种用于搅拌和处理金属棒（12）的连续和半连续铸造的方法和装置。 该装置包括：用于在浇注之后或浇注期间将至少一个电弧电极（24）悬挂在金属铸件（14）的上表面上的支架（30），用于形成移动电弧的至少一个电极（24） 38）位于铸铸的铸铁的上表面上，第二电极是液态金属（14），用于完成包括所述电弧（38）和液态金属（14）的电路。 以及连接在所述设备和电源（36）之间并被布置成向等离子弧电极（14,24）供电以用于监视电弧（38）的参数的控制装置（34）。 本发明还提供了一种通过使用上述装置来铸造金属棒（12）的方法。

公开(公告)号：US07243701B2

公开(公告)日：2007-07-17

申请号：US10450269

申请日：2001-12-12

申请人： Pavel Dvoskin ,  Valery Zlochevsky ,  Emil Rodjak ,  Dror Nadam

发明人： Pavel Dvoskin ,  Valery Zlochevsky ,  Emil Rodjak ,  Dror Nadam

IPC分类号： B22D27/02 ,  B22D27/04 ,  B22D27/06

CPC分类号： B22D27/02 ,  B22D27/06

摘要： An apparatus (10) and a method for reducing inclusions, shrinkage blowholes, porosity and segregation in metal castings during the casting process, and for improving the grain structure, mechanical properties and yield of ingots and other castings. The apparatus (10) comprises: At least one electrode (14) for forming a moving electric arc (16) over the upper surface (18) of a metallic casting (12) being cast and a stand (20) for suspending the electric arc electrode (14) over the upper surface (18) of the metallic casting (12) during or after pouring and a second electrode (24) attachable to a metallic surface (26) of the mold (28) being used for casting, for completion of an electric circuit (30) including the electric arc (16) and electronic controls (32) connected between the apparatus (10) and a power supply (34).

摘要翻译： 一种用于在铸造过程中减少金属铸件中的夹杂物，收缩气孔，孔隙率和偏析以及用于改善晶锭和其它铸件的晶粒结构，机械性能和产量的装置（10）和方法。 所述设备（10）包括：用于在铸造的金属铸件（12）的上表面（18）上形成移动电弧（16）的至少一个电极（14）和用于悬挂电弧的支架（20） 在铸造期间或之后，金属铸件（12）的上表面（18）上方的电极（14）和可附接到模具（28）的金属表面（26）的第二电极（24）用于铸造，用于完成 包括连接在设备（10）和电源（34）之间的电弧（16）和电子控制（32）的电路（30）。

公开(公告)号：US20050098298A1

公开(公告)日：2005-05-12

申请号：US10450269

申请日：2001-12-12

申请人： Pavel Dvoskin ,  Valery Zlochevsky ,  Emil Rodjak ,  Dror Nadam

发明人： Pavel Dvoskin ,  Valery Zlochevsky ,  Emil Rodjak ,  Dror Nadam

IPC分类号： B22D7/00 ,  B22D11/00 ,  B22D27/02 ,  B22D27/06 ,  H05B3/60 ,  H05B7/00 ,  H05H1/48

CPC分类号： B22D27/02 ,  B22D27/06

摘要： An apparatus (10) and a method for reducing inclusions, shrinkage blowholes, porosity and segregation in metal castings during the casting process, and for improving the grain structure, mechanical properties and yield of ingots and other castings. The apparatus (10) comprises: At least one electrode (14) for forming a moving electric arc (16) over the upper surface (18) of a metallic casting (12) being cast and a stand (20) for suspending the electric arc electrode (14) over the upper surface (18) of the metallic casting (12) during or after pouring and a second electrode (24) attachable to a metallic surface (26) of the mold (28) being used for casting, for completion of an electric circuit (30) including the electric arc (16) and electronic controls (32) connected between the apparatus (10) and a power supply (34).

摘要翻译： 一种用于在铸造过程中减少金属铸件中的夹杂物，收缩气孔，孔隙率和偏析以及用于改善晶锭和其它铸件的晶粒结构，机械性能和产量的装置（10）和方法。 所述设备（10）包括：用于在铸造的金属铸件（12）的上表面（18）上形成移动电弧（16）的至少一个电极（14）和用于悬挂电弧的支架（20） 在铸造期间或之后，金属铸件（12）的上表面（18）上方的电极（14）和可附接到模具（28）的金属表面（26）的第二电极（24）用于铸造，用于完成 包括连接在设备（10）和电源（34）之间的电弧（16）和电子控制（32）的电路（30）。