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21. 发明授权

US06365874B1 Power supply for electric arc welding 有权
公开(公告)号：US06365874B1
公开(公告)日：2002-04-02
申请号：US09575264
申请日：2000-05-22
申请人： Elliott K. Stava
发明人： Elliott K. Stava
IPC分类号： B23K909
CPC分类号： B23K9/1075 , B23K9/1062
摘要： A power supply connectable to a source of AC line voltage for AC electric arc welding by an AC arc current across a welding gap between an electrode and a workpiece, the power supply comprises a high capacity transformer that converts said line voltage to an AC output voltage, and a rectifier that converts the AC output voltage to a DC voltage between a positive terminal and a common terminal at generally zero volts and a negative terminal and the common terminal. The power supply has a first switch that connects the positive terminal to the common terminal across the gap when a gate signal is applied to the first switch, a second switch for connecting the negative terminal to the common terminal across the gap when a gate signal is applied to the second switch and a pulse width modulator operated for generating pulses at a frequency of at least about 18 kHz. A logic network has a first circuit for directing the pulses to the first switch for a first time, a second circuit for directing the pulses to the second switch for a second time and a controller to alternately operate first and second circuits to create AC arc welding current.

22. 发明授权

US06172333B2 Electric welding apparatus and method 失效
标题翻译：电焊设备及方法
公开(公告)号：US06172333B2
公开(公告)日：2001-01-09
申请号：US09376401
申请日：1999-08-18
申请人： Elliott K. Stava
发明人： Elliott K. Stava
IPC分类号： B23K909
CPC分类号： B23K9/1735
摘要： An apparatus and method for welding the gap between two ends of adjacent first and second pipe sections comprising: moving a first consumable electrode along the end of the first pipe section; moving a second consumable electrode along the end of the second pipe section; moving the electrodes in unison in side by side relationship on opposite sides of the gap; applying a first welding current to the first electrode; and, applying a second welding current to the second electrode, separate from the first welding current and, optionally, a mechanism for adjusting the spacing of the electrodes.
摘要翻译：一种用于焊接相邻的第一和第二管段的两端之间的间隙的装置和方法，包括：沿着第一管段的端部移动第一可消耗电极; 沿第二管段的端部移动第二消耗性电极; 在间隙的相对侧并排移动电极并排; 向第一电极施加第一焊接电流; 并且向第二电极施加第二焊接电流，与第一焊接电流分离，并且可选地，用于调节电极的间隔的机构。

23. 发明授权

US6051810A Short circuit welder 有权
标题翻译：短路焊机
公开(公告)号：US6051810A
公开(公告)日：2000-04-18
申请号：US200594
申请日：1998-11-27
申请人： Elliott K. Stava
发明人： Elliott K. Stava
IPC分类号： B23K9/173 , B23K9/028 , B23K9/073 , B23K9/09 , B23K9/095 , B23K9/10 , B23K9/12
CPC分类号： B23K9/0286 , B23K9/092
摘要： An apparatus and method of short circuit arc welding two spaced ends of two pipe sections at a groove between the two pipe sections. The method and apparatus include the use of a cored metal electrode and moving the electrode toward the groove as the electrode is moved along the groove and about the outer peripheral surface of the pipe sections during the welding operation. The cored electrode is melted by an electric cycle which comprises a transfer portion and a plasma portion. The plasma portion is controlled to bridge the gap between the pipe sections for laying a root bead along the groove. The cored electrode is preferably a self-shielding electrode and includes alloying components in the core to form a root bead having a substantially similar composition as the composition of the two pipe sections. The apparatus and method has a selector to control the polarity of the individual cycles of a total welding procedure.
摘要翻译：在两个管段之间的槽处，两个管段的两个间隔端的短路电弧焊接装置和方法。该方法和装置包括使用芯金属电极，并且在焊接操作期间随着电极沿着沟槽和围绕管部分的外周表面移动，电极朝着凹槽移动。芯电极通过包括转印部分和等离子体部分的电循环熔化。控制等离子体部分以跨越管段之间的间隙，以沿着沟槽铺设根部珠。芯状电极优选为自屏蔽电极，并且包括芯中的合金成分以形成具有与两个管段的组成基本相似的组成的根珠。该装置和方法具有选择器来控制总焊接程序的各个循环的极性。

24. 发明授权

US6025573A Controller and method for pulse welding 有权
标题翻译：脉冲焊接控制器及方法
公开(公告)号：US6025573A
公开(公告)日：2000-02-15
申请号：US175022
申请日：1998-10-19
申请人： Elliott K. Stava
发明人： Elliott K. Stava
IPC分类号： B23K9/09 , B23K9/095
CPC分类号： B23K9/092
摘要： In a power supply for creating a voltage to cause a current pulse between a consumable electrode and a workpiece to melt the end of the electrode into a droplet and propel the droplet toward the workpiece, where the power supply has a plurality of pulse controlling parameters, the improvement comprising: means for determining the real time dv/dt of the voltage during the current pulse; means for creating a detect signal in response to the real time dv/dt shifting from a negative value to a positive value; and means for adjusting at least one of the welding parameters in response to the detect signal.
摘要翻译：在用于产生电压以引起可消耗电极和工件之间的电流脉冲以将电极的端部熔化成液滴并将液滴推向工件的电源中，其中电源具有多个脉冲控制参数，该改进包括：用于确定当前脉冲期间电压的实时dv / dt的装置; 用于响应于从负值转换为正值的实时dv / dt产生检测信号的装置; 以及用于响应于所述检测信号调整所述焊接参数中的至少一个的装置。

25. 发明授权

US5742029A Method of welding wallpaper alloy an arc welder modified to practice same 失效
标题翻译：焊接壁纸合金弧焊机的方法修改为实践
公开(公告)号：US5742029A
公开(公告)日：1998-04-21
申请号：US679899
申请日：1996-07-15
申请人： Elliott K. Stava , Peter L. Nicholson
发明人： Elliott K. Stava , Peter L. Nicholson
IPC分类号： B23K9/00 , B23K9/09 , B23K9/10 , B23K9/173
CPC分类号： B23K9/0043 , B23K9/092 , B23K9/1043 , B23K9/173 , B23K2201/12
摘要： A method of and welder for welding a corrosion resistant, wallpaper alloy to the inside surface of a vessel wall formed from a corrosion susceptible steel sheet after the wallpaper alloy has been affixed to the inside to provide an exposed seam of wallpaper alloy extending in a given path wherein the method and welder comprising moving a welding wire toward the seam, melting and depositing the welding wire onto the seam along the path by a short circuit arc welding process of the type having a welding cycle with a short condition and an arcing condition, which arcing condition constitutes a plasma boost portion with a set peak current level followed by a plasma portion with a current decreasing from said peak current level toward a set background current level with a given time between the plasma boost portion and the short condition andsetting the length of time of the plasma portion of the arcing condition to a value greater than 25% of the given time or greater than 2.0 ms.
摘要翻译：一种焊接方法和焊接方法，用于在将壁纸合金固定在内部之后将腐蚀性壁纸合金焊接到由耐腐蚀钢板形成的容器壁的内表面上，以提供在给定的壁面上延伸的壁纸合金的暴露接缝路径，其中所述方法和焊接机包括使焊丝朝向接缝移动，通过具有短状态和电弧状态的焊接周期的短路电弧焊接工艺沿着路径熔融并将焊丝沉积到接缝上，该电弧条件构成具有设定峰值电流水平的等离子升压部分，其后是等离子体部分，其中电流从等离子体升压部分和短暂状态之间的给定时间从所述峰值电流电平降低到设定的背景电流电平，并设定长度的电弧条件的等离子体部分的时间大于给定时间的25％或大于2.0ms的值。

26. 发明授权

US4954691A Method and device for controlling a short circuiting type welding system 失效
标题翻译：用于控制短路型焊接系统的方法和装置
公开(公告)号：US4954691A
公开(公告)日：1990-09-04
申请号：US343238
申请日：1989-04-24
申请人： John M. Parks , Elliott K. Stava
发明人： John M. Parks , Elliott K. Stava
IPC分类号： B41M1/00 , B41M7/00 , C09D11/10
CPC分类号： C09D11/102 , B41M1/00 , B41M7/00
摘要： A method and device for controlling a power supply for arc welding in a manner to reduce spatter when the power supply is employed for depositing metal from a welding wire or electrode onto a workpiece by the short circuiting transfer mode wherein a welding current causes the welding wire to alternate between a short circuit condition and an arc condition with metal transfer occurring during a short circuit condition. This method and device includes the concept of shifting the welding current to a background current value in response to a short circuit condition, holding the welding current generally at the background current level for a preselected time, then allowing the welding current to reach the normal unimpeded current level, and causing the holding step to be terminated before the selected time in response to a detected arc condition. This concept provides a predetermined low current condition immediately upon establishing a short circuit between the welding wire or electrode and the workpiece, which low current condition is retained long enough to convert what otherwise would be a spatter-laden momentary short circuit to a short circuit where metal is transferred to the workpiece. Further, the method and device detects the slope of the welding current or voltage and shifts the welding current to the low background current level when the welding current reaches its maximum value just before breakage of the metal from the wire thus reducing the spatter energy when the molten metal breaks from the wire.
摘要翻译：一种电弧焊接用电源的方法和装置，其特征在于，当通过短路转移模式使用电源将焊丝或电极从焊丝或电极沉积到工件上时，减少飞溅，其中焊接电流使焊丝以在短路状态下发生金属转移而在短路状态和电弧状态之间交替。该方法和装置包括响应于短路状态将焊接电流移动到背景电流值的概念，将焊接电流一般保持在背景电流水平预选的时间，然后允许焊接电流达到正常的不受阻碍当前电平，并且响应于检测到的电弧条件使得在所选择的时间之前终止保持步骤。该概念在焊丝或电极和工件之间建立短路时立即提供预定的低电流条件，该低电流条件被保持足够长以将否则将是飞溅的瞬时短路转换成短路，金属被转移到工件上。此外，方法和装置检测焊接电流或电压的斜率，并且当焊接电流在金属从金属线断开之前达到其最大值时将焊接电流移动到低背景电流水平，从而当熔融金属从电线中断。

27. 发明授权

US09259796B2 Synergic TIG welding system 有权
标题翻译：协同TIG焊接系统
公开(公告)号：US09259796B2
公开(公告)日：2016-02-16
申请号：US11331869
申请日：2006-01-17
申请人： Steven R. Peters , Elliott K. Stava
发明人： Steven R. Peters , Elliott K. Stava
IPC分类号： B23K9/10 , B23K9/09 , B23K9/095
CPC分类号： B23K9/091 , B23K9/0953
摘要： There is provided an improved TIG welder comprising a power source for performing an AC TIG welding process across an electrode and a workpiece with a controller for creating an AC waveform. The controller having a synergic input device with an input for receiving a signal level representing a desired set current for the welding process and an output signal determining an aspect of the waveform and representing a non-linear relationship between peak positive current and peak negative current for certain desired set welding currents.
摘要翻译：提供了一种改进的TIG焊机，其包括用于通过用于产生AC波形的控制器在电极和工件上执行AC TIG焊接工艺的电源。控制器具有协同输入装置，其具有用于接收表示用于焊接过程的期望设定电流的信号电平的输入端，以及确定波形的方面并且表示峰值正电流和峰值负电流之间的非线性关系的输出信号，某些所需的设定焊接电流。

28. 发明授权

US07645960B2 Coded welding consumable 有权
标题翻译：编码焊接耗材
公开(公告)号：US07645960B2
公开(公告)日：2010-01-12
申请号：US10872286
申请日：2004-06-18
申请人： Elliott K. Stava
发明人： Elliott K. Stava
IPC分类号： B23K9/095 , G06F17/00
CPC分类号： B23K9/1062 , B23K9/133 , B23K35/02
摘要： A welder for performing a welding process which includes a wire feeder and a code reader. The code reader is designed to obtain information from the welding wire based on a plurality of different cross-sectional sizes and/or different cross-sectional shapes on the outer surface of the welding wire. The information from the code reader is used to monitor at least one welding parameter of an electric arc welding process and/or to control at least one welding parameter of an electric arc welding process.
摘要翻译：一种用于执行焊接过程的焊机，其包括送丝机和代码读取器。代码阅读器被设计为基于在焊丝的外表面上的多个不同的横截面尺寸和/或不同的横截面形状从焊丝获得信息。来自代码阅读器的信息用于监视电弧焊接过程的至少一个焊接参数和/或控制电弧焊接过程的至少一个焊接参数。

29. 发明授权

US07358459B2 Electric arc welder system with waveform profile control 有权
标题翻译：具有波形曲线控制的电弧焊机系统
公开(公告)号：US07358459B2
公开(公告)日：2008-04-15
申请号：US11393634
申请日：2006-03-30
申请人： Elliott K. Stava
发明人： Elliott K. Stava
IPC分类号： B23K9/09
CPC分类号： B23K9/092
摘要： An electric arc welder for creating a succession of AC waveforms between an electrode and workpiece by a power source comprising an high frequency switching device for creating individual waveforms in the succession of waveforms. Each of the individual waveforms has a profile determined by the magnitude of each of a large number of short current pulses generated at a frequency of at least 18 kHz by a pulse width modulator with the magnitude of the current pulses controlled by a wave shaper. The welder is provided with a profile control network for setting more than one profile parameter selected from the class consisting of frequency, duty cycle, up ramp rate and down ramp rate and a magnitude circuit for adjusting the waveform profile to set total current, voltage and/or power.
摘要翻译：一种用于通过电源在电极和工件之间产生一系列交流波形的电弧焊机，其包括用于在所述一系列波形中产生各个波形的高频开关装置。每个单独的波形具有由通过由波形整形器控制的电流脉冲的幅度的脉冲宽度调制器以至少18kHz的频率产生的大量短电流脉冲中的每一个的大小确定的分布。焊机设有配置文件控制网络，用于设置从包括频率，占空比，上升斜率和下降斜坡率的类别中选择的多个配置文件参数，以及用于调整波形轮廓以设置总电流，电压和 /或电源。

30. 发明授权

US07049810B1 Apparatus to measure fill 有权
标题翻译：仪器测量填充
公开(公告)号：US07049810B1
公开(公告)日：2006-05-23
申请号：US10621721
申请日：2003-07-18
申请人： Elliott K. Stava
发明人： Elliott K. Stava
IPC分类号： G01R27/72 , G01R33/12
CPC分类号： B21C51/00
摘要： An apparatus for indicating the wall thickness of a cored welding wire traveling in a given path to determine the percentage of volume of fill. This apparatus comprises a first induction coil surrounding the path; a source of AC current connected across the coil; a second reference coil connected to the AC source where the second reference coil surrounds a fixed section of cored welding wire with a desired wall thickness, and an output device indicating deviation of the wall thickness of the traveling wire from the wall thickness of the fixed section of wire by detecting the inductive reactance of the first coil compared to the second coil.
摘要翻译：用于指示在给定路径中行进的芯焊丝的壁厚以确定填充量的百分比的装置。该装置包括围绕路径的第一感应线圈; 在线圈上连接的交流电流源; 连接到AC源的第二参考线圈，其中第二参考线圈围绕具有期望壁厚的芯焊丝的固定部分，以及输出装置，其指示行进线的壁厚与固定部分的壁厚的偏差通过检测第一线圈的感抗与第二线圈相比的电线。

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