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1. 发明申请

WO2003008143A1 RISER(S) SIZE REDUCTION AND/OR METAL QUALITY IMPROVING IN GRAVITY CASTING OF SHAPED PRODUCTS BY MOVING ELECTRIC ARC 审中-公开
标题翻译：通过移动电弧改善成型产品的重量提高（S）尺寸减少和/或金属质量
公开(公告)号：WO2003008143A1
公开(公告)日：2003-01-30
申请号：PCT/IL2002/000584
申请日：2002-07-17
申请人： NETANYA PLASMATEC LTD. , DVOSKIN, Pavel , ZLOCHEVSKY, Valery , NADAM, Dror
发明人： DVOSKIN, Pavel , ZLOCHEVSKY, Valery , NADAM, Dror
IPC分类号： B23K10/00
CPC分类号： H05H1/48 , B22D27/06 , C21C5/5205 , Y02P10/216
摘要： The invention invention provides an apparatus (10) and a method for reducing the volume of risers, and for the possibility of reducing shrinkage blowhole and porosity in shaped gravity casting. The invention provides an apparatus (10) for producing metal flow/stir in the liquid metal (31), the apparatus (10) comprising at least one electrode (16) for forming a continuously-moving plasma arc (34) over the upper surface of selected riser(s) (12) in metallic casting being cast; a stand (26) for suspending said plasma arc electrode (16) over the upper surface of said risers (12) during the casting process, a second electrode (28) attachable to the liquid metal (31) or the metal being used for casting and a power supply (36) for completion of an electric circuit including said plasma arc (34); and control means (38) connected between said apparatus (10) and said power supply (36).
摘要翻译：本发明提供了一种降低立管体积的装置（10）和减少成形重力铸造中的收缩气孔和孔隙率的方法。本发明提供了一种用于在液态金属（31）中产生金属流动/搅拌的装置（10），该装置（10）包括至少一个用于在上表面上形成连续移动的等离子弧（34）的电极（16）（12）在铸造的金属铸件中; 用于在铸造过程中将所述等离子弧电极（16）悬浮在所述立管（12）的上表面上的支架（26），可附接到液态金属（31）的第二电极（28）或用于铸造的金属以及用于完成包括所述等离子弧（34）的电路的电源（36）。以及连接在所述设备（10）和所述电源（36）之间的控制装置（38）。

2. 发明申请

WO2003018231A1 METHOD AND APPARATUS FOR STIRRING AND TREATING CONTINUOUS AND SEMI CONTINUOUS METAL CASTING 审中-公开
标题翻译：连续和半连续金属铸件的搅拌和处理方法与装置
公开(公告)号：WO2003018231A1
公开(公告)日：2003-03-06
申请号：PCT/IL2002/000686
申请日：2002-08-20
申请人： NETANYA PLASMATEC LTD. , DVOSKIN, Pavel , ZLOCHEVSKY, Valery , NADAM, Dror
发明人： DVOSKIN, Pavel , ZLOCHEVSKY, Valery , NADAM, Dror
IPC分类号： B22D11/11
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。

3. 发明申请

WO1997028672A1 ELECTRODE FOR PLASMA GENERATOR THE GENERATOR COMPRISING SAME AND PROCESS FOR TREATMENT OF SOLIDIFYING LIQUID METAL 审中-公开
标题翻译：用于等离子体发生器的电极包含其的发生器和用于处理固体液体金属的方法
公开(公告)号：WO1997028672A1
公开(公告)日：1997-08-07
申请号：PCT/IL1997000023
申请日：1997-01-16
申请人： NETANYA PLASMATEC LTD. , DVOSKIN, Pavel , ZLOCHEVSKY, Valery , ROSEN, Ran
发明人： NETANYA PLASMATEC LTD.
IPC分类号： H05H01/48
CPC分类号： H05H1/48
摘要： A main electrode for plasma arc generator, a generator 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 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 usually connected to a d.c. power source via at least one connector site, and a second, working rim serving for the electric arc discharge. The tubular body is divided by at least one slot (gap) 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 and an arc receiving 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：用于等离子弧发生器的主电极，包括该发电机的发电机和通过所述发电机处理液态金属的方法，其中与对电极相关联的主电极提供能够产生等离子体电弧放电可置换的双轨结构沿着封闭的道路不间断地。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。电源通过至少一个连接器位置，以及第二工作边缘，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）分开并且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送和电弧接收区。这两个区域和相关联的连接器位置的相互位置是这样的，即当弧柱被创建并且沿着第二边缘移位时，它将始终从位于发射区域到接收区域的位置处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。

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