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公开(公告)号：US4418265A
公开(公告)日：1983-11-29
申请号：US239926
申请日：1981-03-03
申请人： Yoichiro Tabata , Shigeo Ueguri , Hirotsugu Komura , Toshio Ito
发明人： Yoichiro Tabata , Shigeo Ueguri , Hirotsugu Komura , Toshio Ito
CPC分类号： B23K9/0678
摘要： An electrical welding device which requires no high frequency insulation and an electrical discharge gap for maintaining the arc discharge is made large. A main power source supplies an arc discharge current through an electrical conductor to the welding electrode. A high frequency electric power source applies a high-frequency high voltage between the electrode and the material to be welded to generate a high frequency discharge for arc ignition in the electric discharge gap. A high frequency magnetic choke element, which is preferably a plurality of stacked annular ferrite discs, surrounds a predetermined part of the electrical conductor. A high-frequency bypass capacitor is utilized to ground the electrical conductor between the magnetic choke element and the main power source.
摘要翻译： 不需要高频绝缘的电焊装置和用于维持电弧放电的放电间隙变大。 主电源通过电导体向焊接电极提供电弧放电电流。 高频电源在电极和待焊接材料之间施加高频高压，以在放电间隙中产生用于电弧点火的高频放电。 优选多个层叠的环形铁氧体磁盘的高频磁扼流圈围绕电导体的预定部分。 使用高频旁路电容器将电导体在磁扼流元件和主电源之间接地。
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公开(公告)号：US4594498A
公开(公告)日：1986-06-10
申请号：US534540
申请日：1983-09-22
申请人： Shigeo Ueguri , Youichiro Tabata , Hirotsugu Komura , Toshio Ito
发明人： Shigeo Ueguri , Youichiro Tabata , Hirotsugu Komura , Toshio Ito
IPC分类号： B23K9/09
CPC分类号： B23K9/091
摘要： A pulse arc welding machine in which the welding operations and welding current are controlled such that the molten portion of a wire electrode is not significantly splattered and the welding arc length and welding bead are uniform. The welding machine of the invention includes a wire electrode, a welding torch confronting a base material while being spaced therefrom, a shielding gas supplying unit for supplying a shielding gas to the welding area on the base material, and a wire feeding unit for feeding the wire electrode to the welding torch. A base current source supplies a base current between the wire electrode and base material with a pulse current from a pulse current source being imposed thereon. A pulse frequency varying circuit varies a number of pulses per unit time for the pulse current so that the number of pulses is proportional to the speed at which the wire electrode is fed thereby to set the average arc current.
摘要翻译： 一种脉冲电弧焊接机，其中控制焊接操作和焊接电流，使得线电极的熔融部分不会显着飞溅，并且焊接电弧长度和焊接珠均匀。 本发明的焊接机包括线电极，与基材隔开的面对基材的焊炬，用于向基材上的焊接区域供给保护气体的保护气体供给单元，以及供给单元 线电极到焊枪。 基极电流源在线电极和基底材料之间提供来自施加在其上的脉冲电流源的脉冲电流的基极电流。 脉冲频率变化电路改变脉冲电流的每单位时间的脉冲数，使得脉冲数与供给线电极的速度成比例，从而设定平均电弧电流。
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公开(公告)号：US4425493A
公开(公告)日：1984-01-10
申请号：US281530
申请日：1981-07-08
IPC分类号： B23K9/09
CPC分类号： B23K9/091
摘要： A pulse arc welding machine in which the repetition frequency of the pulse currect is unaffected by the frequency of the power source and the mean value of the pulse current applied can be accurately controlled over a broad range while the arcing is maintained stable. A pulse peak current supplying circuit is connected in series with an arcing region formed between a consumable wire electrode and a material to be welded between the output terminals of a standard direct current source while a base current supplying circuit is connected in parallel with the pulse peak current supplying circuit. The pulse peak current supplying circuit and the base current supplying circuit are both composed of a switching element such as a transistor coupled in series with an inductive element. Diodes are provided for suppressing high voltage transients in the circuit.
摘要翻译： 一种脉冲电弧焊接机，其中脉冲重复频率不受电源频率的影响，并且在电弧保持稳定的同时，可以在宽范围内精确地控制施加的脉冲电流的平均值。 脉冲峰值电流供给电路与在标准直流电源的输出端子之间形成的消耗性电极电极与被焊接材料之间形成的电弧区域串联连接，而基极电流供给电路与脉冲峰值并联连接 电流供应电路。 脉冲峰值电流供给电路和基极电流供给电路均由与感应元件串联连接的晶体管等开关元件构成。 二极管用于抑制电路中的高电压瞬变。
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公开(公告)号：US4438317A
公开(公告)日：1984-03-20
申请号：US281263
申请日：1981-07-08
申请人： Shigeo Ueguri , Hirotsugu Komura , Takaji Mizuno
发明人： Shigeo Ueguri , Hirotsugu Komura , Takaji Mizuno
IPC分类号： B23K9/09
CPC分类号： B23K9/091
摘要： A pulse arc welding machine including a wire electrode, a wire feeding unit for feeding the wire electrode to a base material, a base current source for supplying a base current between the wire electrode and the base material, a pulse current source for supplying a pulse current superposed on the base current, a detector for detecting the arc discharge voltage between the wire electrode and the base material, and a controller. The controller compares a detected output value from the detector with a preset reference value to thereby control the amount of heat applied to the wire electrode wherein the arc voltage between the wire electrode and the base material is maintained substantially at a value determined by the reference value.
摘要翻译： 一种脉冲电弧焊机，包括线电极，用于将线电极馈送到基底的导线馈送单元，用于在线电极和基底材料之间提供基极电流的基极电流源，用于提供脉冲的脉冲电流源 叠加在基极电流上的电流，用于检测线电极和基材之间的电弧放电电压的检测器，以及控制器。 控制器将来自检测器的检测到的输出值与预设的参考值进行比较，从而控制施加到线电极的热量，其中线电极和基底材料之间的电弧电压基本上保持在由参考值确定的值 。
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公开(公告)号：US4341947A
公开(公告)日：1982-07-27
申请号：US152507
申请日：1980-05-22
CPC分类号： H01J37/32018 , F24H1/101 , H05B7/005 , H05B7/16 , Y10S422/907
摘要： Typically, a bottom of a cup-shaped electrode opposes to that of a similar electrode through a predetermined gap and in a mixture of helium and hydrogen. A step-up transformer connected across an AC source through a resistor applies a voltage in excess of a discharge breakdown voltage for the gap across the electrodes to cause a pilot glow discharge between them before the source voltage reaches a glow hold minimum voltage for the electrodes. A rectified voltage resulting from a transformer connected across the resistor turns a bidirectional triode thyristor on to apply the source voltage across the electrodes through the conducting thyristor. This smoothly transits the pilot glow discharge to a glow discharge between the electrodes. The latter discharge heats a liquid forcedly flowing along inner surfaces of the electrodes. Also an auxiliary electrode can be operatively coupled to the electrodes to cause similarly a pilot glow discharge between it and either one of the electrodes. For a DC source a tubular anode surrounds a middle portion of a tubular cathode though which a liquid flows.
摘要翻译： 通常，杯形电极的底部通过预定间隙和氦和氢的混合物与类似电极的底部相反。 通过电阻器连接在交流电源上的升压变压器对电极之间的间隙施加超过放电击穿电压的电压，以在源电压达到电极的辉光保持最小电压之前在它们之间引起导频辉光放电 。 由连接在电阻器上的变压器产生的整流电压使双向三极管晶闸管导通，通过导电晶闸管将源极电压施加到电极两端。 这样平滑地将导频辉光放电转移到电极之间的辉光放电。 后者的放电加热了沿电极的内表面强制流动的液体。 还可以将辅助电极可操作地耦合到电极，以类似地引起其与电极中的任一个之间的导频辉光放电。 对于DC源，管状阳极围绕液体流过的管状阴极的中间部分。
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公开(公告)号：US4410792A
公开(公告)日：1983-10-18
申请号：US152500
申请日：1980-05-22
CPC分类号： H01J37/32018 , F24H1/101 , H05B7/005 , H05B7/16 , Y10S422/907
摘要： Typically, a bottom of a cup-shaped electrode opposes to that of a similar electrode through a predetermined gap and in a mixture of helium and hydrogen. A step-up transformer connected across an AC source through a resistor applies a voltage in excess of a discharge breakdown voltage for the gap across the electrodes to cause a pilot glow discharge between them before the source voltage reaches a glow hold minimum voltage for the electrodes. A rectified voltage resulting from a transformer connected across the resistor turns a bidirectional triode thyristor on to apply the source voltage across the electrodes through the conducting thyristor. This smoothly transits the pilot glow discharge to a glow discharge between the electrodes. The latter discharge heats a liquid forcedly flowing along inner surfaces of the electrodes. Also an auxiliary electrode can be operatively coupled to the electrodes to cause similarly a pilot glow discharge between it and either one of the electrodes. For a DC source a tubular anode surrounds a middle portion of a tubular cathode through which a liquid flows.
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公开(公告)号：US4339656A
公开(公告)日：1982-07-13
申请号：US152563
申请日：1980-05-22
CPC分类号： H01J37/32018 , F24H1/101 , H05B7/005 , H05B7/16 , Y10S422/907
摘要： Typically, a bottom of a cup-shaped electrode opposes to that of a similar electrode through a predetermined gap and in a mixture of helium and hydrogen. A step-up transformer connected across an AC source through a resistor applies a voltage in excess of a discharge breakdown voltage for the gap across the electrodes to cause a pilot glow discharge between them before the source voltage reaches a glow hold minimum voltage for the electrodes. A rectified voltage resulting from a transformer connected across the resistor turns a bidirectional triode thyristor on to apply the source voltage across the electrodes through the conducting thyristor. This smoothly transits the pilot glow discharge to a glow discharge between the electrodes. The latter discharge heats a liquid forcedly flowing along inner surfaces of the electrodes. Also an auxiliary electrode can be operatively coupled to the electrodes to cause similarly a pilot glow discharge between it and either one of the electrodes. For a DC source a tubular anode surrounds a middle portion of a tubular cathode through which a liquid flows.
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公开(公告)号：US4329563A
公开(公告)日：1982-05-11
申请号：US6780
申请日：1979-01-26
CPC分类号： H01J37/32018 , F24H1/101 , H05B7/005 , H05B7/16 , Y10S422/907
摘要： Typically, a bottom of a cup-shaped electrode opposes to that of a similar electrode through a predetermined gap and in a mixture of helium and hydrogen. A step-up transformer connected across an AC source through a resistor applies a voltage in excess of a discharge breakdown voltage for the gap across the electrodes to cause a pilot glow discharge between them before the source voltage reaches a glow hold minimum voltage for the electrodes. A rectified voltage resulting from a transformer connected across the resistor turns a bidirectional triode thyristor on to apply the source voltage across the electrodes through the conducting thyristor. This smoothly transits the pilot glow discharge to a glow discharge between the electrodes. The latter discharge heats a liquid forcedly flowing along inner surfaces of the electrodes. Also an auxiliary electrode can be operatively coupled to the electrodes to cause similarly a pilot glow discharge between it and either one of the electrodes. For a DC source a tubular anode surrounds a middle portion of a tubular cathode through which a liquid flows.
摘要翻译： 通常，杯形电极的底部通过预定间隙和氦和氢的混合物与类似电极的底部相反。 通过电阻器连接在交流电源上的升压变压器对电极之间的间隙施加超过放电击穿电压的电压，以在源电压达到电极的辉光保持最小电压之前在它们之间引起导频辉光放电 。 由连接在电阻器上的变压器产生的整流电压使双向三极管晶闸管导通，通过导电晶闸管将源极电压施加到电极两端。 这样平滑地将导频辉光放电转移到电极之间的辉光放电。 后者的放电加热了沿电极的内表面强制流动的液体。 还可以将辅助电极可操作地耦合到电极，以类似地引起其与电极中的任一个之间的导频辉光放电。 对于DC源，管状阳极围绕液体流过的管状阴极的中间部分。
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公开(公告)号：US5317116A
公开(公告)日：1994-05-31
申请号：US668519
申请日：1991-03-27
申请人： Yoichiro Tabata , Shigeo Ueguri , Yoshihiro Ueda , Masanori Mizuno , Yoshiaki Katou , Osamu Nagano
发明人： Yoichiro Tabata , Shigeo Ueguri , Yoshihiro Ueda , Masanori Mizuno , Yoshiaki Katou , Osamu Nagano
CPC分类号： B23K9/1062 , B23K9/0734 , B23K9/092 , B23K9/0953 , G05F1/08
摘要： A pulse welding apparatus using a pulse discharge such as a pulse arc welding apparatus and a short-circuit transfer arc welding apparatus. A pulse current waveform control circuit, which controls the pulse arc current so that a desired pulse arc current is supplied to the arc welding power supply for outputting the pulse arc current to the welding load unit, is constructed such that the optimum welding operation may be performed without having to adjust circuit components and modify circuit design. The pulse current waveform control circuit is in the form of a microcomputerized digital circuit which operates under a program to provide a desired pulse arc current. A modification of the program can provide any desired pulse arc currents without changing circuits. The optimum welding current waveform parameters or a target arc length signal is learned in the first welding stage and stored into a memory. An arc length feedback control or a current waveform control is performed under the control of program on the basis of the optimum welding current waveform parameters or the target arc length signal so as to control the faulty separation of globules when magnetic blow occurs and so as to reduce the variation of arc length due to external disturbances occurring at the welding torch so that improved welding quality is ensured under various environments.
摘要翻译： PCT No.PCT / JP90 / 00246 Sec。 371日期1991年3月27日 102（e）1991年3月27日PCT提交1990年2月27日PCT公布。 公开号WO91 / 01842 日期：1991年2月21日。一种使用脉冲放电的脉冲焊接装置，例如脉冲电弧焊接装置和短路转移电弧焊接装置。 控制脉冲电弧电流的脉冲电流波形控制电路被构造为使得最佳焊接操作可以是最佳焊接操作，该脉冲电流波形控制电路控制脉冲电弧电流，使得向焊接电源提供期望的脉冲电弧电流以向焊接负载单元输出脉冲电弧电流 执行而不必调整电路组件并修改电路设计。 脉冲电流波形控制电路是在程序下操作以提供期望的脉冲电弧电流的微计算机数字电路的形式。 该程序的修改可以提供任何期望的脉冲电弧电流而不改变电路。 在第一焊接阶段学习最佳焊接电流波形参数或目标电弧长度信号，并存储到存储器中。 基于最佳焊接电流波形参数或目标电弧长度信号，在程序控制下执行电弧长度反馈控制或电流波形控制，以便在发生磁场发生时控制球的故障分离，从而 减少由焊枪发生的外部干扰引起的电弧长度的变化，从而确保在各种环境下提高焊接质量。
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公开(公告)号：US5150375A
公开(公告)日：1992-09-22
申请号：US535615
申请日：1990-06-11
申请人： Yoichiro Tabata , Yoshihiro Ueda , Shigeo Ueguri , Kazuhiko Hara
发明人： Yoichiro Tabata , Yoshihiro Ueda , Shigeo Ueguri , Kazuhiko Hara
IPC分类号： H01S3/03
CPC分类号： H01S3/031
摘要： A substance vaporizing apparatus which uses a vapor of a substance generated by heating the substance in a gas-filled tube as an exciting medium or an ionizing medium. The apparatus employs an improved container for containing the substance within the gas-filled tube. The improved container suppresses the rate of emission of the vapor of the substance into a discharge space defined by the gas-filled tube to hold the vapor density of the substance at an optimum low value for laser oscillation relative to the buffer gas density in the discharge space. Thus, the mean free path of the atoms of the substance, namely the average distance traveled by the atoms between elastic collisions with the electrons, ions and neutral atoms of the buffer gas, is increased to increase the number of atoms of the subtance excited to a higher energy level, which, consequently, increases laser power and enhances laser beam or ion beam accelerating energy. The employment of segmental discharge electrodes each consisting of a plurality of partial electrodes diametrically distributed in the discharge space of the gas-filled tube enables heating the buffer gas in a substantially uniform diametrical temperature distribution, which enables to increase the length and diameter of the laser medium. The employment of two pulse generating circuits promotes the relaxation of the atoms of the substance from a lower energy level to the ground energy level to enable the next application of a pulse voltage to establish a complete population inversion, which enables the substance vaporizing apparatus to operate at a high efficiency at a high discharge frequency.
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