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1. 发明申请

US20130020287A1 METHOD FOR STARTING AND STOPPING A PLASMA ARC TORCH 有权
标题翻译：启动和停止等离子弧焊机的方法
公开(公告)号：US20130020287A1
公开(公告)日：2013-01-24
申请号：US13188264
申请日：2011-07-21
申请人： Daniel Wayne Barnett , Nakhleh A. Hussary
发明人： Daniel Wayne Barnett , Nakhleh A. Hussary
IPC分类号： B23K9/16
CPC分类号： H05H1/34 , H05H1/341 , H05H2001/3421 , H05H2001/3436 , H05H2001/3442 , H05H2001/3457
摘要： A method of starting a plasma arc torch is provided that includes directing a pre-flow gas and a start shield gas through the plasma arc torch during generation and transfer of a plasma arc, and switching from the pre-flow gas to a plasma gas, and switching from the start shield gas to a primary shield gas after transfer of the plasma arc to a workpiece. A method of stopping a plasma arc torch is also provided that includes directing a plasma gas and a primary shield gas through the plasma arc torch during steady-state operation, and switching from the primary shield gas to a stop shield gas during ramp down of an operating current.
摘要翻译：提供了一种启动等离子弧焊炬的方法，其包括在等离子体电弧的产生和传输期间引导预流气体和起始保护气体通过等离子体电弧炬，以及从预流气体切换到等离子体气体，并且在将等离子体电弧转移到工件之后，从起始保护气体切换到主屏蔽气体。还提供了一种停止等离子弧焊炬的方法，其包括在稳态操作期间引导等离子体气体和主屏蔽气体通过等离子体电弧炬，以及在陡坡期间从主屏蔽气体切换到挡板气体工作电流。

2. 发明授权

US09000322B2 Method for starting and stopping a plasma arc torch 有权
标题翻译：启动和停止等离子弧焊炬的方法
公开(公告)号：US09000322B2
公开(公告)日：2015-04-07
申请号：US13188264
申请日：2011-07-21
申请人： Daniel Wayne Barnett , Nakhleh A. Hussary
发明人： Daniel Wayne Barnett , Nakhleh A. Hussary
IPC分类号： B23K9/00 , B23K9/02 , H05H1/34
CPC分类号： H05H1/34 , H05H1/341 , H05H2001/3421 , H05H2001/3436 , H05H2001/3442 , H05H2001/3457
摘要： A method of starting a plasma arc torch is provided that includes directing a pre-flow gas and a start shield gas through the plasma arc torch during generation and transfer of a plasma arc, and switching from the pre-flow gas to a plasma gas, and switching from the start shield gas to a primary shield gas after transfer of the plasma arc to a workpiece. A method of stopping a plasma arc torch is also provided that includes directing a plasma gas and a primary shield gas through the plasma arc torch during steady-state operation, and switching from the primary shield gas to a stop shield gas during ramp down of an operating current.
摘要翻译：提供了一种启动等离子弧焊炬的方法，其包括在等离子体电弧的产生和传输期间引导预流气体和起始保护气体通过等离子体电弧炬，以及从预流气体切换到等离子体气体，并且在将等离子体电弧转移到工件之后，从起始保护气体切换到主屏蔽气体。还提供了一种停止等离子弧焊炬的方法，其包括在稳态操作期间引导等离子体气体和主屏蔽气体通过等离子体电弧炬，以及在陡坡期间从主屏蔽气体切换到挡板气体工作电流。

3. 发明申请

US20090057276A1 HYBRID SHIELD DEVICE FOR A PLASMA ARC TORCH 有权
标题翻译：用于等离子弧焊的混合防护装置
公开(公告)号：US20090057276A1
公开(公告)日：2009-03-05
申请号：US11850012
申请日：2007-09-04
申请人： Nakhleh A. Hussary , Christopher J. Conway , Thierry R. Renault , Darrin H. MacKenzie
发明人： Nakhleh A. Hussary , Christopher J. Conway , Thierry R. Renault , Darrin H. MacKenzie
IPC分类号： H05H1/34
CPC分类号： H05H1/3405 , H05H1/34 , H05H2001/3457 , Y10T137/0352
摘要： Methods and devices for controlling the flow of gases through a plasma arc torch are provided. A flow of plasma gas is directed to a plasma chamber, a first flow of auxiliary gas is directed around a plasma stream that exits a tip in one of a swirling manner and a radial manner, and a second flow of auxiliary gas is directed around the first flow of auxiliary gas and the plasma stream in one of a coaxial manner, an angled manner, and a radial manner. The first flow of auxiliary gas functions to constrict and shape the plasma stream to improve cut quality and cut speed, and the second flow of auxiliary gas functions to protect the plasma arc torch during piercing and cutting and to cool components of the plasma arc torch such that thicker workpieces may be processed with a highly shaped plasma stream.
摘要翻译：提供了用于控制通过等离子体电弧焊炬的气体流动的方法和装置。等离子体气体的流动被引导到等离子体室，辅助气体的第一流动围绕以旋转方式和径向方式之一离开尖端的等离子体流引导，并且辅助气体的第二流引导以同轴方式，倾斜方式和径向方式中的一种辅助气体和等离子体流的第一流动。辅助气体的第一流动起到压缩和形成等离子体流的作用，以提高切割质量和切割速度，辅助气体的第二流动用于在穿孔和切割过程中保护等离子弧焊炬并且冷却等离子弧焊炬的组件，例如可以用高度成形的等离子体流来处理较厚的工件。

4. 发明申请

US20080083708A1 Contoured shield orifice for a plasma arc torch 有权
标题翻译：等离子弧焊炬的轮廓屏蔽孔
公开(公告)号：US20080083708A1
公开(公告)日：2008-04-10
申请号：US11510822
申请日：2006-08-25
申请人： Nakhleh A. Hussary , Christopher J. Conway , Thierry R. Renault , Darrin H. MacKenzie
发明人： Nakhleh A. Hussary , Christopher J. Conway , Thierry R. Renault , Darrin H. MacKenzie
IPC分类号： B23K9/00
CPC分类号： H05H1/34 , H05H2001/3457 , H05H2001/3478
摘要： A component for use in a plasma arc torch is provided that includes a continuously contoured surface extending along the component that directs a flow of shield gas at a predetermined angle to result in a specific pierce or cut location on a workpiece. In one form, the component is a shield cap that includes an exit orifice extending through a central portion of the shield cap, the exit orifice defining an inlet portion and an outlet portion, and a continuously contoured surface extending between the inlet portion and the outlet portion. The continuously contoured surfaces may be convergent, divergent, or a combination of convergent and divergent according to the principles of the present disclosure. Additionally, the shield cap may comprise a single, unitary piece or alternately a plurality of pieces or components.
摘要翻译：提供了一种用于等离子体电弧炬的部件，其包括沿着部件延伸的连续轮廓的表面，该表面以预定角度引导屏蔽气体流，导致工件上的特定的穿孔或切割位置。在一种形式中，所述部件是屏蔽帽，其包括延伸穿过所述屏蔽盖的中心部分的出口孔，所述出口孔限定入口部分和出口部分，以及在所述入口部分和所述出口之间延伸的连续成型的表面一部分。根据本公开的原理，连续轮廓的表面可以是收敛的，发散的或收敛的和发散的组合。另外，屏蔽帽可以包括单一的整体件或者多个件或组件。

5. 发明授权

US07126080B1 Plasma gas distributor with integral metering and flow passageways 有权
标题翻译：等离子气体分配器具有集成的计量和流动通道
公开(公告)号：US07126080B1
公开(公告)日：2006-10-24
申请号：US11176894
申请日：2005-07-07
申请人： Thierry R. Renault , Nakhleh A. Hussary , Darrin H. MacKenzie , Christopher J. Conway , Kevin D. Horner-Richardson
发明人： Thierry R. Renault , Nakhleh A. Hussary , Darrin H. MacKenzie , Christopher J. Conway , Kevin D. Horner-Richardson
IPC分类号： B23K10/00
CPC分类号： H05H1/34 , H05H2001/3468
摘要： A gas distributor for use in a plasma arc torch is provided that has at least one plasma gas passageway formed conjointly with a metering passageway, and at least one helical gas passageway formed along an interior portion of the gas distributor, wherein the helical gas passageway is in fluid communication with the plasma gas passageway and the metering passageway. The combination of the metering passageway and the helical gas passageway provides for a metered flow rate and a controlled swirling flow of plasma gas within the plasma arc chamber, respectively, which functions to reduce the amount of molten emissive insert that is ejected from within an electrode at arc shut off, thereby resulting in an increased life of the consumable electrode.
摘要翻译：提供了一种用于等离子体电弧炬的气体分配器，其具有与计量通道共同形成的至少一个等离子体气体通道，以及沿着气体分配器的内部形成的至少一个螺旋形气体通道，其中螺旋形气体通道为与等离子体气体通道和计量通道流体连通。计量通道和螺旋气体通道的组合分别提供等离子体电弧室内的等离子体气体的计量流量和受控的旋流，其功能是减少从电极内喷出的熔融发射插入物的量在电弧切断时，消耗电极的使用寿命延长。

6. 发明申请

US20110168681A1 HYBRID SHIELD DEVICE FOR A PLASMA ARC TORCH 有权
标题翻译：用于等离子弧焊的混合防护装置
公开(公告)号：US20110168681A1
公开(公告)日：2011-07-14
申请号：US13069746
申请日：2011-03-23
申请人： Nakhleh A. Hussary , Christopher J. Conway , Thierry R. Renault , Darrin H. MacKenzie
发明人： Nakhleh A. Hussary , Christopher J. Conway , Thierry R. Renault , Darrin H. MacKenzie
IPC分类号： B23K9/00
CPC分类号： H05H1/3405 , H05H1/34 , H05H2001/3457 , Y10T137/0352
摘要： A shield device for a plasma arc torch includes an inner shield member defining an inner auxiliary gas chamber and an outer shield member surrounding the inner shield member. An outer auxiliary gas chamber is defined between the inner shield member and outer shield member. The shield device allows an auxiliary gas flow to be split into a first flow of auxiliary gas through the inner auxiliary gas chamber and a second flow of auxiliary gas through the outer auxiliary gas chamber. The inner shield member and the outer shield member are configured to be mounted to the plasma arc torch as an integral unit.
摘要翻译：用于等离子弧焊炬的屏蔽装置包括限定内部辅助气体室的内部屏蔽构件和围绕内部屏蔽构件的外部屏蔽构件。外部辅助气体室限定在内部屏蔽部件和外部屏蔽部件之间。屏蔽装置允许辅助气流通过内部辅助气体室分成第一辅助气体流，并且辅助气体流通过外部辅助气体室。内屏蔽构件和外屏蔽构件被构造成作为一体单元安装到等离子弧焊炬。

7. 发明申请

US20100206853A1 CONTOURED SHIELD ORIFICE FOR A PLASMA ARC TORCH 有权
标题翻译：用于等离子弧焊的轮廓屏蔽
公开(公告)号：US20100206853A1
公开(公告)日：2010-08-19
申请号：US12772882
申请日：2010-05-03
申请人： Nakhleh A. Hussary , Christopher J. Conway , Thierry R. Renault , Darrin H. Mackenzie
发明人： Nakhleh A. Hussary , Christopher J. Conway , Thierry R. Renault , Darrin H. Mackenzie
IPC分类号： B23K9/00
CPC分类号： H05H1/34 , H05H2001/3457 , H05H2001/3478
摘要： A component for use in a plasma arc torch is provided that includes an orifice that defines a continuously changing cross-sectional size along the length of a surface of the orifice from an inlet portion to an outlet portion. The surface extends along the component and directs a flow of shield gas at a predetermined angle to result in a specific pierce or cut location on a workpiece. In one form, the component is a shield cap. The continuously changing surface may be convergent, divergent, or a combination of convergent and divergent according to the principles of the present disclosure. Additionally, the shield cap may comprise a single, unitary piece or alternately a plurality of pieces or components.
摘要翻译：提供了一种用于等离子弧焊炬的部件，其包括孔口，该孔口从入口部分到出口部分沿着孔口表面的长度限定连续变化的横截面尺寸。表面沿着部件延伸并且以预定的角度引导屏蔽气体流，从而在工件上产生特定的穿孔或切割位置。在一种形式中，组件是屏蔽盖。根据本公开的原理，连续变化的表面可以是收敛的，发散的或收敛的和发散的组合。另外，屏蔽帽可以包括单一的整体件或者多个件或组件。

8. 发明授权

US08674256B2 Hybrid shield device for a plasma arc torch 有权
标题翻译：用于等离子弧焊枪的混合屏蔽装置
公开(公告)号：US08674256B2
公开(公告)日：2014-03-18
申请号：US13069746
申请日：2011-03-23
申请人： Nakhleh A. Hussary , Christopher J. Conway , Thierry R. Renault , Darrin H. MacKenzie
发明人： Nakhleh A. Hussary , Christopher J. Conway , Thierry R. Renault , Darrin H. MacKenzie
IPC分类号： B23K10/00
CPC分类号： H05H1/3405 , H05H1/34 , H05H2001/3457 , Y10T137/0352
摘要： A shield device for a plasma arc torch includes an inner shield member defining an inner auxiliary gas chamber and an outer shield member surrounding the inner shield member. An outer auxiliary gas chamber is defined between the inner shield member and outer shield member. The shield device allows an auxiliary gas flow to be split into a first flow of auxiliary gas through the inner auxiliary gas chamber and a second flow of auxiliary gas through the outer auxiliary gas chamber. The inner shield member and the outer shield member are configured to be mounted to the plasma arc torch as an integral unit.
摘要翻译：用于等离子弧焊炬的屏蔽装置包括限定内部辅助气体室的内部屏蔽构件和围绕内部屏蔽构件的外部屏蔽构件。外部辅助气体室限定在内部屏蔽部件和外部屏蔽部件之间。屏蔽装置允许辅助气流通过内部辅助气体室分成第一辅助气体流，并且辅助气体流通过外部辅助气体室。内屏蔽构件和外屏蔽构件被构造成作为一体单元安装到等离子弧焊炬。

9. 发明授权

US08222561B2 Drag tip for a plasma cutting torch 有权
标题翻译：用于等离子切割割炬的拖拽
公开(公告)号：US08222561B2
公开(公告)日：2012-07-17
申请号：US11850014
申请日：2007-09-04
申请人： Thierry R. Renault , Nakhleh A. Hussary , Christopher J. Conway , Darrin H. MacKenzie
发明人： Thierry R. Renault , Nakhleh A. Hussary , Christopher J. Conway , Darrin H. MacKenzie
IPC分类号： B23K10/00
CPC分类号： H05H1/34 , H05H2001/3478 , H05H2001/3484
摘要： A drag tip for use in a plasma cutting torch is provided that includes an inner tip portion defining a distal end face, an inner cavity through which a plasma gas flows, and an orifice disposed between the distal end face and the inner cavity. An outer tip portion surrounds the inner tip portion and defines an inner chamber to accommodate a flow of secondary gas and also a distal end portion. The distal end face of the inner tip portion is adapted for contact with a workpiece and extends distally beyond the distal end portion of the outer tip portion, and the flow of secondary gas exits the outer tip portion proximate the distal end portion. Variations of the drag tip and methods of operation are also provided.
摘要翻译：提供了一种用于等离子切割炬的拖曳尖端，其包括限定远端面的内部尖端部分，等离子体气体流过的内部空腔和设置在远端面和内部空腔之间的孔口。外部尖端部分围绕内部尖端部分并且限定内部腔室以容纳二次气体流以及远端部分。内部末端部分的远端面适于与工件接触并且向远侧延伸超出外部末端部分的远端部分，并且二次气体流在远端部分附近离开外部末端部分。还提供了拖曳尖端和操作方法的变化。

10. 发明授权

US07935909B2 Hybrid shield device for a plasma arc torch 有权
标题翻译：用于等离子弧焊枪的混合屏蔽装置
公开(公告)号：US07935909B2
公开(公告)日：2011-05-03
申请号：US11850012
申请日：2007-09-04
申请人： Nakhleh A. Hussary , Christopher J. Conway , Thierry R. Renault , Darrin H. MacKenzie
发明人： Nakhleh A. Hussary , Christopher J. Conway , Thierry R. Renault , Darrin H. MacKenzie
IPC分类号： B23K10/00
CPC分类号： H05H1/3405 , H05H1/34 , H05H2001/3457 , Y10T137/0352
摘要： Methods and devices for controlling the flow of gases through a plasma arc torch are provided. A flow of plasma gas is directed to a plasma chamber, a first flow of auxiliary gas is directed around a plasma stream that exits a tip in one of a swirling manner and a radial manner, and a second flow of auxiliary gas is directed around the first flow of auxiliary gas and the plasma stream in one of a coaxial manner, an angled manner, and a radial manner. The first flow of auxiliary gas functions to constrict and shape the plasma stream to improve cut quality and cut speed, and the second flow of auxiliary gas functions to protect the plasma arc torch during piercing and cutting and to cool components of the plasma arc torch such that thicker workpieces may be processed with a highly shaped plasma stream.
摘要翻译：提供了用于控制通过等离子体电弧焊炬的气体流动的方法和装置。等离子体气体的流动被引导到等离子体室，辅助气体的第一流动围绕以旋转方式和径向方式之一离开尖端的等离子体流引导，并且辅助气体的第二流引导以同轴方式，倾斜方式和径向方式中的一种辅助气体和等离子体流的第一流动。辅助气体的第一流动起到压缩和形成等离子体流的作用，以提高切割质量和切割速度，辅助气体的第二流动用于在穿孔和切割过程中保护等离子弧焊炬并且冷却等离子弧焊炬的组件，例如可以用高度成形的等离子体流来处理较厚的工件。

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