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1. 发明授权

US06232575B1 Apparatus and method for supplying fluids to a plasma arc torch 有权
标题翻译：用于向等离子弧焊枪供应流体的装置和方法
公开(公告)号：US06232575B1
公开(公告)日：2001-05-15
申请号：US09631745
申请日：2000-08-04
申请人： Thomas Franklin Oakley , Barry Gaskins Turner
发明人： Thomas Franklin Oakley , Barry Gaskins Turner
IPC分类号： B23K1000
CPC分类号： H05H1/36
摘要： A plasma arc torch system having automatic purge and fill capability includes a plasma arc torch which has a supply line coupled with a passage in the torch for supplying a process fluid through the torch to a nozzle of the torch. The system further includes a process fluid supply system including at least first and second supplies containing first and second process fluids, respectively, and a purge gas supply containing an inert purge gas. A valve system is coupled between the process fluid supply system and the supply line and between the purge gas supply and the supply line, the valve system including at least one valve operable to selectively couple the supply line to one of the first, second, and purge supplies. An actuator system is connected to the valve system, the actuator system being electrically activatable to cause the valve system to couple the supply line to one of the supplies. To enable automatic purge and fill operations, the system includes a control system including a programmable controller electrically connected to the actuator system, and an electronic data storage device in data communication with the controller, the data storage device containing at least one set of process requirements including a process fluid requirement. The controller is programmed to read the set of process requirements from the data storage device and to control operation of the actuator system so as to automatically couple the supply line with the first or second supply in accordance with the process fluid requirement.
摘要翻译：具有自动吹扫和填充能力的等离子弧焊炬系统包括等离子弧炬，其具有与炬中的通道耦合的供应线，用于将通过炬的工艺流体供应到炬的喷嘴。该系统还包括一个工艺流体供应系统，该系统至少包括分别含有第一和第二工艺流体的第一和第二供给装置和包含惰性吹扫气体的净化气体供应装置。阀系统连接在过程流体供应系统和供应管线之间以及净化气体供应和供应管线之间，阀系统包括至少一个阀，其可操作以选择性地将供应管线连接到第一，第二和第清洗用品。致动器系统连接到阀系统，致动器系统可电激活以使阀系统将供应管线耦合到其中一个供应源。为了实现自动清除和填充操作，系统包括控制系统，包括电连接到致动器系统的可编程控制器和与控制器进行数据通信的电子数据存储设备，数据存储设备包含至少一组过程要求包括工艺流体要求。控制器被编程为从数据存储设备读取一组处理要求并且控制致动器系统的操作，以便根据过程流体要求自动地将供应管线与第一或第二供应连接。

2. 发明授权

US6121570A Apparatus and method for supplying fluids to a plasma arc torch 有权
标题翻译：用于向等离子弧焊枪供应流体的装置和方法
公开(公告)号：US6121570A
公开(公告)日：2000-09-19
申请号：US181264
申请日：1998-10-28
申请人： Thomas Franklin Oakley , Barry Gaskins Turner
发明人： Thomas Franklin Oakley , Barry Gaskins Turner
IPC分类号： B23K10/00 , H05H1/36 , H05H1/42 , B23K9/00
CPC分类号： H05H1/36
摘要： A plasma arc torch system having automatic purge and fill capability includes a plasma arc torch which has a supply line coupled with a passage in the torch for supplying a process fluid through the torch to a nozzle of the torch. The system further includes a process fluid supply system including at least first and second supplies containing first and second process fluids, respectively, and a purge gas supply containing an inert purge gas. A valve system is coupled between the process fluid supply system and the supply line and between the purge gas supply and the supply line, the valve system including at least one valve operable to selectively couple the supply line to one of the first, second, and purge supplies. An actuator system is connected to the valve system, the actuator system being electrically activatable to cause the valve system to couple the supply line to one of the supplies. To enable automatic purge and fill operations, the system includes a control system including a programmable controller electrically connected to the actuator system, and an electronic data storage device in data communication with the controller, the data storage device containing at least one set of process requirements including a process fluid requirement. The controller is programmed to read the set of process requirements from the data storage device and to control operation of the actuator system so as to automatically couple the supply line with the first or second supply in accordance with the process fluid requirement.
摘要翻译：具有自动吹扫和填充能力的等离子弧焊炬系统包括等离子弧炬，其具有与炬中的通道耦合的供应线，用于将通过炬的工艺流体供应到炬的喷嘴。该系统还包括一个工艺流体供应系统，该系统至少包括分别含有第一和第二工艺流体的第一和第二供给装置和包含惰性吹扫气体的净化气体供应装置。阀系统连接在过程流体供应系统和供应管线之间以及净化气体供应和供应管线之间，阀系统包括至少一个阀，其可操作以选择性地将供应管线连接到第一，第二和第清洗用品。致动器系统连接到阀系统，致动器系统可电激活以使阀系统将供应管线耦合到其中一个供应源。为了实现自动清除和填充操作，系统包括控制系统，包括电连接到致动器系统的可编程控制器和与控制器进行数据通信的电子数据存储设备，数据存储设备包含至少一组过程要求包括工艺流体要求。控制器被编程为从数据存储设备读取一组处理要求并且控制致动器系统的操作，以便根据过程流体要求自动地将供应管线与第一或第二供应连接。

3. 发明授权

US06232574B1 Method and apparatus for improving plasma ARC consumable life 有权
标题翻译：改善等离子弧消耗寿命的方法和装置
公开(公告)号：US06232574B1
公开(公告)日：2001-05-15
申请号：US09482781
申请日：2000-01-13
申请人： Thomas Franklin Oakley
发明人： Thomas Franklin Oakley
IPC分类号： B23K1000
CPC分类号： B23K10/00 , H05H1/34 , H05H1/36 , H05H2001/3442 , H05H2001/3452
摘要： A process and apparatus for stopping a cutting operation of a plasma arc torch is disclosed which minimizes the oxidation of the electrode to thereby extend life of the electrode. A flow of oxidizing gas is directed through a plasma chamber and nozzle. An electrical current is then conducted through the electrode to form a plasma arc. The electrical current is cut no later than a time F for extinguishing the plasma arc. The flow of oxidizing gas is switched off a determinable time interval before time F, and a flow of non-oxidizing gas is switched on no later than time F, whereby the non-oxidizing gas substantially completely purges the oxidizing gas from the torch creating an inert environment, whereby the plasma arc extinguishes in the inert environment.
摘要翻译：公开了一种用于停止等离子体电弧炬的切割操作的方法和装置，其使电极的氧化最小化，从而延长电极的寿命。氧化气体的流动通过等离子体室和喷嘴引导。然后通过电极传导电流以形成等离子弧。不迟于用于熄灭等离子体电弧的时间F切断电流。氧化气体的流动在时间F之前切断可确定的时间间隔，并且非氧化气体的流动不迟于时间F被切换，由此非氧化气体基本上完全清除来自割炬的氧化气体，从而产生惰性环境中，等离子体电弧在惰性环境中熄灭。

4. 发明授权

US5951888A Plasma electrode with arc-starting grooves 失效
标题翻译：等离子电极带起弧槽
公开(公告)号：US5951888A
公开(公告)日：1999-09-14
申请号：US112873
申请日：1998-07-09
申请人： Thomas Franklin Oakley
发明人： Thomas Franklin Oakley
IPC分类号： H05H1/34 , B23K10/00
CPC分类号： H05H1/34 , H05H2001/3442 , H05H2001/3478
摘要： An electrode and a plasma arc torch are provided wherein the useful service life of the electrode is extended and the starting ability of the torch is improved because the arc is transferred from an initiation point to a final attaching point which is centered on the electrode. The electrode includes a generally cylindrical body defining a longitudinal axis and having a substantially planar front face that is perpendicular to the longitudinal axis. The front face has a central region at which the arc is to be supported after initiation of the arc. The front face further defines at least one groove extending radially inward for guiding the arc from the point of initiation along the front face toward the central region. Because the arc easily and quickly moves from its initiation point to the central region of the electrode along the groove, starting ability of the plasma arc torch is improved and service life of the electrode is lengthened. Moreover, because the arc is directed to an optimal steady state attaching point in the central region of the electrode, electrode wear due to non-optimum attaching position is reduced, thereby further extending the useful electrode service life.
摘要翻译：提供电极和等离子弧焊炬，其中延长了电极的有用使用寿命，并且由于电弧从起始点转移到以电极为中心的最终附着点，从而提高了焊炬的启动能力。电极包括限定纵向轴线并且具有垂直于纵向轴线的基本平坦的前表面的大致圆柱形主体。前表面具有中心区域，电弧起始之后电弧被支撑在该中心区域。前表面还限定了至少一个径向向内延伸的凹槽，用于将弧从起始点沿前表面向中心区域引导。因为电弧容易且快速地沿着沟槽从电极的起始点移动到电极的中心区域，所以提高了等离子弧焊炬的启动能力，延长了电极的使用寿命。此外，由于电弧被引导到电极的中心区域中的最佳稳态附着点，所以由于非最佳附着位置引起的电极磨损减少，从而进一步延长了有用电极的使用寿命。

5. 发明授权

US5844196A System and method for detecting nozzle and electrode wear 失效
标题翻译：检测喷嘴和电极磨损的系统和方法
公开(公告)号：US5844196A
公开(公告)日：1998-12-01
申请号：US929857
申请日：1997-09-15
申请人： Thomas Franklin Oakley
发明人： Thomas Franklin Oakley
IPC分类号： G01B7/00 , B23K10/00 , G01B21/00 , H05H1/34
CPC分类号： H05H1/36 , B23K10/006 , H05H2001/3494
摘要： A system and method for detecting nozzle and electrode wear of plasma arc torches in which the average change in the stand-off between the electrode or the nozzle assembly of the plasma arc torch and a workpiece is monitored, and corrective measures are taken once the average change in the stand-off of the electrode and nozzle assembly exceeds a predetermined value. The corrective measures may include changing the arc voltage of the plasma arc torch, modifying the speed at which the plasma arc torch travels, modifying the average current of the power supply of the plasma arc torch, or the flow rate of the plasma supply gases or cut water of the plasma arc torch. The number of corrections is monitored so that after a predetermined number of such corrections, the system and method notifies an operator or the plasma arc torch itself that the electrode or surrounding nozzle requires replacement.
摘要翻译：用于检测等离子体电弧割炬的喷嘴和电极磨损的系统和方法，其中监测等离子体电弧焊炬和工件的电极或喷嘴组件之间的间隔的平均变化，并且一旦平均值电极和喷嘴组件的支座的变化超过预定值。纠正措施可以包括改变等离子弧焊炬的电弧电压，改变等离子体电弧炬行进的速度，修改等离子体电弧炬的电源的平均电流或者等离子体供应气体的流速，切割水的等离子弧焊炬。监视校正次数，以便经过预定次数的校正之后，系统和方法通知操作员或等离子体电弧焊炬本身，电极或周围喷嘴需要更换。

6. 发明授权

US5893986A Method of controlling a plasma arc cutting torch 失效
标题翻译：控制等离子弧切割割炬切割成工件的方法
公开(公告)号：US5893986A
公开(公告)日：1999-04-13
申请号：US843045
申请日：1997-04-11
申请人： Thomas Franklin Oakley , Joseph Valerious Warren, Jr.
发明人： Thomas Franklin Oakley , Joseph Valerious Warren, Jr.
IPC分类号： B23K10/00
CPC分类号： B23K10/006
摘要： A method of controlling a plasma are torch in cutting or marking a workpiece along a path of travel having a starting point and stopping point in accordance with a predetermined program and in which an arc extinguish order in issued at a predetermined point or location on the path of travel spaced upstream of the stopping point a distance determined by the speed or velocity of the torch and the arc extinguish delay time between issuance of the arc extinguish order and actual extinguishment of the arc so that the arc is extinguished at the precise instant the torch arrives at the stopping point.
摘要翻译：控制等离子体的方法是根据预定程序沿着具有起点和停止点的行进路径切割或标记工件的割炬，并且其中在路径上的预定点或位置处发出的灭弧顺序在停止点上游的行程距离由火炬的速度或速度确定的距离以及灭弧阶段的发射与电弧的实际熄灭之间的灭弧延迟时间，使得电弧在精确的瞬间熄灭到达停车点。

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