专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP1777023A3 Treating molten metals by moving electric arc 审中-公开
标题翻译：通过移动电弧熔融金属处理
公开(公告)号：EP1777023A3
公开(公告)日：2008-03-19
申请号：EP07101054.0
申请日：2001-12-12
申请人： Netanya Plasmatec Ltd.
发明人： DVOSKIN, Pavel , ZLOCHEVSKY, Valery , RODJAK, Emil , NADAM, Dror
IPC分类号： B22D27/02
CPC分类号： B22D27/02 , B22D27/06
摘要： The present invention relates to a process for reducing riser size and/or number in sand or permanent mold casting, the process comprising the steps of: providing an electric arc electrode and positioning the electric arc electrode slightly above the upper surface of the molten metal in the riser, during or after pouring molten metal into the sand or permanent mold; applying a moving arc over the upper surface of the molten metal in the riser during solidification, to stir the molten metal by applying an electric current to the electrode.

2. 发明公开

EP1441870A4 METHOD AND APPARATUS FOR STIRRING AND TREATING CONTINUOUS AND SEMI CONTINUOUS METAL CASTING 审中-公开
标题翻译：方法及装置：用于连铸金属半铸造搅拌BEHANDLEN
公开(公告)号：EP1441870A4
公开(公告)日：2005-12-21
申请号：EP02760539
申请日：2002-08-20
申请人： NETANYA PLASMATEC LTD
发明人： DVOSKIN PAVEL , ZLOCHEVSKY VALERY , NADAM DROR
IPC分类号： B22D11/11 , B22D27/06 , B22D27/02
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.

3. 发明公开

EP1441870A1 METHOD AND APPARATUS FOR STIRRING AND TREATING CONTINUOUS AND SEMI CONTINUOUS METAL CASTING 审中-公开
标题翻译：方法及装置：用于连铸金属半铸造搅拌BEHANDLEN
公开(公告)号：EP1441870A1
公开(公告)日：2004-08-04
申请号：EP02760539.3
申请日：2002-08-20
申请人： Netanya Plasmatec Ltd.
发明人： DVOSKIN, Pavel , ZLOCHEVSKY, Valery , NADAM, Dror
IPC分类号： B22D11/11 , B22D27/02
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.

4. 发明授权

EP0878115B1 ELECTRODE FOR PLASMA GENERATOR THE GENERATOR COMPRISING SAME AND PROCESS FOR TREATMENT OF SOLIDIFYING LIQUID METAL 失效
标题翻译：电极等离子发生器，液态金属凝固这种含发生器和方法
公开(公告)号：EP0878115B1
公开(公告)日：2007-08-01
申请号：EP97900407.4
申请日：1997-01-16
申请人： Netanya Plasmatec Ltd.
发明人： DVOSKIN, Pavel , ZLOCHEVSKY, Valery , ROSEN, Ran
IPC分类号： H05H1/48
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.

5. 发明公开

EP1358030A1 TREATING MOLTEN METALS BY MOVING ELECTRIC ARC 审中-公开
标题翻译：金属液由电弧MOVING治疗
公开(公告)号：EP1358030A1
公开(公告)日：2003-11-05
申请号：EP01270396.3
申请日：2001-12-12
申请人： Netanya Plasmatec Ltd.
发明人： DVOSKIN, Pavel , ZLOCHEVSKY, Valery , RODJAK, Emil , NADAM, Dror
IPC分类号： B22D27/02
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).

6. 发明公开

EP1777023A2 Treating molten metals by moving electric arc 审中-公开
标题翻译： Verarbeitung vonflüssigenMetallen durch Bewegen des Lichtbogens
公开(公告)号：EP1777023A2
公开(公告)日：2007-04-25
申请号：EP07101054.0
申请日：2001-12-12
申请人： Netanya Plasmatec Ltd.
发明人： DVOSKIN, Pavel , ZLOCHEVSKY, Valery , RODJAK, Emil , NADAM, Dror
IPC分类号： B22D27/02
CPC分类号： B22D27/02 , B22D27/06
摘要： The present invention relates to a process for reducing riser size and/or number in sand or permanent mold casting, the process comprising the steps of: providing an electric arc electrode and positioning the electric arc electrode slightly above the upper surface of the molten metal in the riser, during or after pouring molten metal into the sand or permanent mold; applying a moving arc over the upper surface of the molten metal in the riser during solidification, to stir the molten metal by applying an electric current to the electrode.
摘要翻译：本发明涉及一种减少沙子或永久模具铸造中的提升管尺寸和/或数量的方法，该方法包括以下步骤：提供电弧电极并将电弧电极定位在熔融金属的上表面上方稍微上方在将熔融金属倒入砂或永久模具期间或之后提升管; 在凝固期间在提升管中的熔融金属的上表面上施加移动的电弧，通过向电极施加电流来搅拌熔融金属。

7. 发明公开

EP1358030A4 TREATING MOLTEN METALS BY MOVING ELECTRIC ARC 审中-公开
标题翻译：金属液由电弧MOVING治疗
公开(公告)号：EP1358030A4
公开(公告)日：2005-08-03
申请号：EP01270396
申请日：2001-12-12
申请人： NETANYA PLASMATEC LTD
发明人： DVOSKIN PAVEL , ZLOCHEVSKY VALERY , RODJAK EMIL , NADAM DROR
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).

8. 发明公开

EP1423227A1 RISER(S) SIZE REDUCTION AND/OR METAL QUALITY IMPROVING IN GRAVITY CASTING OF SHAPED PRODUCTS BY MOVING ELECTRIC ARC 有权
标题翻译：冒口尺寸的减少和/或金属质量改善线条的重力铸造移动ARC
公开(公告)号：EP1423227A1
公开(公告)日：2004-06-02
申请号：EP02751587.3
申请日：2002-07-17
申请人： Netanya Plasmatec Ltd.
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).

9. 发明授权

EP1423227B1 RISER(S) SIZE REDUCTION AND/OR METAL QUALITY IMPROVING IN GRAVITY CASTING OF SHAPED PRODUCTS BY MOVING ELECTRIC ARC 有权
标题翻译：冒口尺寸的减少和/或金属质量改善线条的重力铸造移动ARC
公开(公告)号：EP1423227B1
公开(公告)日：2009-07-15
申请号：EP02751587.3
申请日：2002-07-17
申请人： Netanya Plasmatec Ltd.
发明人： DVOSKIN, Pavel , ZLOCHEVSKY, Valery , NADAM, Dror
IPC分类号： B22D27/06 , H05H1/48
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).

10. 发明公开

EP1423227A4 RISER(S) SIZE REDUCTION AND/OR METAL QUALITY IMPROVING IN GRAVITY CASTING OF SHAPED PRODUCTS BY MOVING ELECTRIC ARC 有权
标题翻译：冒口尺寸的减少和/或金属质量改善线条的重力铸造移动ARC
公开(公告)号：EP1423227A4
公开(公告)日：2005-12-14
申请号：EP02751587
申请日：2002-07-17
申请人： NETANYA PLASMATEC LTD
发明人： DVOSKIN PAVEL , ZLOCHEVSKY VALERY , NADAM DROR
IPC分类号： B22D27/06 , C21C5/52 , H05H1/48 , 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).

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式