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.

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

IPC分类号： B23K9/073 ,  B23K9/09 ,  B23K9/095 ,  B23K9/10 ,  G05F1/08

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。

公开(公告)号：US5406052A

公开(公告)日：1995-04-11

申请号：US602232

申请日：1990-10-26

申请人： Masanori Mizuno ,  Yoshiaki Katou ,  Osamu Nagano ,  Yoichiro Tabata ,  Shigeo Ueguri ,  Yoshihiro Ueda

发明人： Masanori Mizuno ,  Yoshiaki Katou ,  Osamu Nagano ,  Yoichiro Tabata ,  Shigeo Ueguri ,  Yoshihiro Ueda

IPC分类号： B23K9/09

CPC分类号： B23K9/092

摘要： The welding equipment according to the present invention divides the pulsed electric current fed to a base metal in the course of a welding process into a plural number of pulse groups, performing instantaneous control over the base electric current period and the base electric current value applied to each of the pulse intervals of the individual pulses within such a group of pulsed electric currents and to each of the groups of pulsed electric currents, the pulse peak value and pulse width of each pulse, and such instantaneous control over a short circuit period and an arc period in the course of performance of the short circuiting transfer arc welding process, in accordance with the detected arc length, in such a manner that an ideal target arc length is thereby achieved. The welding equipment is capable of achieving the separation and transfer of molten globules to the base metal with regularity and also reducing the fluctuations in the short circuit period and the arc period in the short circuiting transfer arc welding process, offering the advantage that the equipment can control the growth and separation of molten globules without being affected by the phenomenon of magnetic arc blow of the arc and can achieve improvements on the quality of weldments even if fluctuations should occur in the shape of welded joints and in the position of the earthing point in operation with the actual arc.

摘要翻译： PCT No.PCT / JP90 / 00244 Sec。 371 1990年10月26日第 102（e）1990年10月26日PCT PCT 1990年2月27日PCT公布。 出版物WO90 / 09856 1990年9月7日。根据本发明的焊接设备将在焊接过程中馈送到母材的脉冲电流分成多个脉冲组，对基本电流周期进行瞬时控制， 施加到这样一组脉冲电流内的各个脉冲的每个脉冲间隔的基极电流值以及脉冲电流组中的每一组脉冲峰值和每个脉冲的脉冲宽度，以及这种瞬时控制 在短路转移电弧焊接工序的过程中，根据检测出的电弧长度，由此实现理想的目标电弧长度。 焊接设备能够有规律地实现熔池与基体金属的分离和转移，并且还可以减少短路转移电弧焊接过程中短路周期和电弧周期的波动，提供设备可以 控制熔融球的生长和分离，而不受电弧磁弧冲击现象的影响，即使在焊接接头的形状和接地点的位置发生波动也可以提高焊接质量 操作与实际弧。

公开(公告)号：US5043557A

公开(公告)日：1991-08-27

申请号：US373841

申请日：1989-06-29

申请人： Yoichiro Tabata ,  Shigeo Ueguri ,  Yoshihiro Ueda

发明人： Yoichiro Tabata ,  Shigeo Ueguri ,  Yoshihiro Ueda

IPC分类号： B23K9/095 ,  B23K9/09 ,  B23K9/10 ,  G01R19/00 ,  H01S3/00 ,  H01S3/036 ,  H01S3/038 ,  H01S3/097 ,  H01S3/134

CPC分类号： B23K9/1056 ,  G01R19/0084

摘要： A load voltage detecting device for use in an apparatus for supplying a current variable with time to a load section. The load voltage detecting device for an apparatus such as a pulsed are welding machine can accurately detect the load voltage from the output voltage of the pulse current supplying section without being affected by the reactor component and the resistance component of the load section and the elements extended to the load section such as the cables and the welding torch.

公开(公告)号：US4994646A

公开(公告)日：1991-02-19

申请号：US353430

申请日：1989-05-18

申请人： Yoichiro Tabata ,  Shigeo Ueguri ,  Yoshihiro Ueda

发明人： Yoichiro Tabata ,  Shigeo Ueguri ,  Yoshihiro Ueda

IPC分类号： B23K9/09

CPC分类号： B23K9/092

摘要： A pulse arc discharge welding apparatus comprising a pulse current waveform control circuit for periodically outputting a pulse current group consisting of a plurality of pulses, pulse arc current supplying means for outputting a pulse arc current according to an output of said pulse current waveform control circuit and an arc welding means for performing pulse arc discharge with an output of said pulse arc current supplying means, to carry out a pulse arc welding operation. In such a pulse arc discharge welding apparatus, with a discharge current waveform provided in the form of high frequency pulses, the discharge light and the gas in pulse discharge and the electrode are regulated and controlled with high accuracy.

公开(公告)号：US5726419A

公开(公告)日：1998-03-10

申请号：US571187

申请日：1995-12-12

申请人： Yoichiro Tabata ,  Shigeo Ueguri ,  Yoshihiro Ueda ,  Masanori Mizuno ,  Yoshiaki Kato ,  Osamu Nagano

发明人： Yoichiro Tabata ,  Shigeo Ueguri ,  Yoshihiro Ueda ,  Masanori Mizuno ,  Yoshiaki Kato ,  Osamu Nagano

IPC分类号： B23K9/09 ,  G05F1/08

CPC分类号： B23K9/092 ,  B23K9/093 ,  G05F1/08

摘要： In pulse welding apparatus of arc welding or short-circuit transfer type arc welding in which a pulse discharge created on the tip of a wire electrode is utilized to perform welding, when a molten droplet produced on the tip of wire electrode is late to separate from the wire due to variations of welding conditions and external disturbances, the wire-supplying speed at which the wire is supplied to the weld zone changes causing undercut. To prevent this, pulse current supplied to the base metal is divided into a plurality of pulse groups and the average current reaches the maximum peak value at a predetermined time after beginning of outputting the pulses, and the group of pulse currents is of a hill-shape in its envelope in accordance with the separation phenomenon of molten droplet, and the group of pulse currents is arranged to have different pulse period, pulse width, and pulse interval. In sort-circuiting arc welding, the short-circuit and arc are instantly controlled in accordance with the detected arc length or wire-supplying speed. This ensures the separation of the molten droplet and its transfer onto the base metal in regular manner. As a result, the growth and separation of molten droplet is not affected by magnetic blow of arc but is controllable.

摘要翻译： 在电弧焊接或短路转移型电弧焊接的脉冲焊接装置中，其中利用线电极的尖端产生的脉冲放电来进行焊接，当在线电极的尖端上产生的熔融液滴迟到时， 由于焊接条件和外部干扰的变化引起的电线，将焊丝供给到焊接区域的焊丝供给速度变化，导致底切。 为了防止这种情况，提供给贱金属的脉冲电流被分成多个脉冲组，并且在开始输出脉冲之后的预定时间内平均电流达到最大峰值，并且脉冲电流组是小时 - 根据熔滴的分离现象形成其包络线，并且脉冲电流组被布置为具有不同的脉冲周期，脉冲宽度和脉冲间隔。 在分选电弧焊接中，根据检测到的电弧长度或电线供电速度立即控制短路和电弧。 这样可以确保熔融液滴的分离及其以规则的方式转移到贱金属上。 结果，熔滴的生长和分离不受电弧的磁力冲击的影响，但是是可控的。

公开(公告)号：US5495091A

公开(公告)日：1996-02-27

申请号：US279069

申请日：1994-07-22

申请人： Yoichiro Tabata ,  Shigeo Ueguri ,  Yoshihiro Ueda ,  Masanori Mizuno ,  Yoshiaki Kato ,  Osamu Nagano

发明人： Yoichiro Tabata ,  Shigeo Ueguri ,  Yoshihiro Ueda ,  Masanori Mizuno ,  Yoshiaki Kato ,  Osamu Nagano

IPC分类号： B23K9/09 ,  G05F1/08

CPC分类号： B23K9/092 ,  B23K9/093 ,  G05F1/08

摘要： In pulse welding apparatus of arc welding or short-circuit transfer type arc welding in which a pulse discharge created on the tip of a wire electrode is utilized to perform welding, when a molten droplet produced on the tip of wire electrode is late to separate from the wire due to variations of welding conditions and external disturbances. The wire-supplying speed at which the wire is supplied to the weld zone changes. This causes undercut, i.e., a defect in welding bead-shape that presents adverse effect to welding quality. To prevent this problem, pulse current supplied to the base metal is divided into a plurality of pulse groups and the average current reaches the maximum peak value at a predetermined time after beginning of outputting the pulses, and the group of pulse currents is of a hill-shape in its envelope in accordance with the separation phenomenon of molten droplet, and the group of pulse currents is arranged to have different pulse period, pulse width, and pulse interval. In the sort-circuiting arc welding, the short-circuit and arc are instantly controlled in accordance with the detected arc length or wire-supplying speed.

摘要翻译： 在电弧焊接或短路转移型电弧焊接的脉冲焊接装置中，其中利用线电极的尖端产生的脉冲放电进行焊接，当在线电极的尖端上产生的熔融液滴迟到时， 由于焊接条件和外部干扰的变化引起的电线。 将焊丝供给到焊接区域的焊丝供给速度发生变化。 这导致底切，即焊接珠形状的缺陷，其对焊接质量产生不利影响。 为了防止这种问题，提供给母材的脉冲电流被分成多个脉冲组，并且在开始输出脉冲之后的预定时间内平均电流达到最大峰值，并且脉冲电流组是小山 根据熔滴的分离现象在其信封中设置，并且脉冲电流组被布置为具有不同的脉冲周期，脉冲宽度和脉冲间隔。 在分选电弧焊接中，短路和电弧根据检测到的电弧长度或电线供电速度立即进行控制。

公开(公告)号：US5416299A

公开(公告)日：1995-05-16

申请号：US194743

申请日：1994-02-09

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

IPC分类号： B23K9/073 ,  B23K9/09 ,  B23K9/095 ,  B23K9/10 ,  G05F1/08

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 environment.

摘要翻译： 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。

公开(公告)号：US5281791A

公开(公告)日：1994-01-25

申请号：US601723

申请日：1990-12-27

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

IPC分类号： B23K9/073 ,  B23K9/09

CPC分类号： B23K9/0732 ,  B23K9/0735 ,  B23K9/092

摘要： A pulsed arc welding for carrying out arc welding or short-circuit transfer type arc welding by utilizing the pulsed discharge generated at the tip of a wire electrode. The propensity of wire electrode curvature causes irregular changes in the contact point of the wire electrode and variations in the arc length between the wire electrode tip and workpieces. Consequently, the invention detects arc voltage and current and checks the instantaneous variation in the arc length. The arc voltage value thus detected is converted to a reference arc voltage variable. Then the detected arc voltage value is compared with the reference value to compute a true arc length. A simulation arc length signal, which varies as welding proceeds, and a reference simulation welding current waveform are set, to compare the simulation arc length signal with the computed arc length signal. The reference simulation welding current waveform is corrected according to this difference signal to form and output a welding current waveform, which is controllable instantaneously to provide an ideal target arc length. Welding can be carried out with stability since the wire electrode is allowed to hold the simulation arc length during each welding process.

摘要翻译： PCT No.PCT / JP90 / 00245 Sec。 371日期1990年12月27日第 102（e）1990年12月27日PCT PCT 1990年2月27日提交PCT公布。 公开号WO90 / 09857 1990年9月7日。一种脉冲弧焊，用于通过利用在线电极尖端产生的脉冲放电进行电弧焊或短路转移型电弧焊。 线电极弯曲的倾向导致线电极的接触点的不规则变化和线电极末端和工件之间的电弧长度的变化。 因此，本发明检测电弧电压和电流并检查电弧长度的瞬时变化。 这样检测的电弧电压值被转换为参考电弧电压变量。 然后将检测到的电弧电压值与参考值进行比较，以计算真正的电弧长度。 设定随着焊接进行而变化的模拟弧长信号和参考模拟焊接电流波形，将模拟电弧长度信号与计算出的电弧长度信号进行比较。 根据该差分信号对参考模拟焊接电流波形进行校正，形成并输出可瞬时控制的焊接电流波形，提供理想的目标电弧长度。 可以稳定地进行焊接，因为允许线电极在每个焊接过程期间保持模拟电弧长度。

公开(公告)号：US4975924A

公开(公告)日：1990-12-04

申请号：US346111

申请日：1989-05-30

申请人： Akihiko Iwata ,  Shigeo Ueguri ,  Kazuhiko Hara ,  Tatsuki Okamoto ,  Yoshihiro Ueda ,  Hiroshi Itoh

发明人： Akihiko Iwata ,  Shigeo Ueguri ,  Kazuhiko Hara ,  Tatsuki Okamoto ,  Yoshihiro Ueda ,  Hiroshi Itoh

IPC分类号： H01S3/03

CPC分类号： H01S3/031

摘要： A metallic vapor laser apparatus comprises a discharge tube, a first pulse circuit (200) for generating a first pulse voltage for causing laser oscillation and a second pulse conduit (16) disposed separately from the first pulse circuit and generating a second pulse voltage delayed from the generation of the first pulse voltage by a predetermined time. The metallic vapor laser apparatus is constructed such that, after the first pulse voltage is applied to the discharge tube, the second pulse voltage is applied to the discharge tube and an output voltage of the second pulse circuit (16) is less than an output voltage of the first pulse circuit (200).

摘要翻译： PCT No.PCT / JP88 / 00805 Sec。 371日期1989年5月30日 102（e）日期1989年5月30日PCT提交1988年8月13日PCT公布。 出版物WO89 / 01713 日本特开1989年2月23日。一种金属蒸汽激光装置，包括放电管，用于产生用于引起激光振荡的第一脉冲电压的第一脉冲电路（200）和与第一脉冲电路分开设置的第二脉冲导管（16） 产生从所述第一脉冲电压的产生延迟预定时间的第二脉冲电压。 金属蒸汽激光装置的结构使得在将第一脉冲电压施加到放电管之后，将第二脉冲电压施加到放电管，并且第二脉冲电路（16）的输出电压小于输出电压 的第一脉冲电路（200）。