公开(公告)号：US4553018A

公开(公告)日：1985-11-12

申请号：US545977

申请日：1983-10-27

申请人： Masatsune Kondo ,  Youichiro Tabata ,  Shigeo Ueguri ,  Takaji Mizuno ,  Hirohisa Segawa ,  Seigo Hiramoto

发明人： Masatsune Kondo ,  Youichiro Tabata ,  Shigeo Ueguri ,  Takaji Mizuno ,  Hirohisa Segawa ,  Seigo Hiramoto

IPC分类号： B23K9/09

CPC分类号： B23K9/091

摘要： A short circuiting arc welding machine increases an arc current density by adding a pulsed current having upper and lower limits to a current flowing when an arc is produced, thereby increasing the depth of bead penetration into a workpiece, removing welding defects, and speeding up the welding operation. The welding machine is capable of alternately changing the direction of flow of a welding current at desired periods to produce arcs in straight, reverse and mixed polarities for achieving intermediate characteristics of arcs of straight and reverse polarities, with a resultant ability to adjust in a wide range a wire melting rate and the amount of heat applied to the workpiece.

摘要翻译： 短路电弧焊机通过向产生电弧时流动的电流增加具有上限和下限的脉冲电流来增加电弧电流密度，从而增加焊道深入工件的深度，消除焊接缺陷，并加快 焊接操作。 焊接机能够以期望的周期交替地改变焊接电流的流动方向，以产生直线，反向和混合极性的电弧，以实现直线和反向极性的电弧的中间特性，从而具有广泛的调整能力 范围是焊丝熔化速率和施加到工件的热量。

公开(公告)号：US4479046A

公开(公告)日：1984-10-23

申请号：US483306

申请日：1983-04-08

申请人： Masanori Mizuno ,  Takaji Mizuno

发明人： Masanori Mizuno ,  Takaji Mizuno

IPC分类号： B23K9/09

CPC分类号： B23K9/092

摘要： A pulse arc welding apparatus in which pulse current and base current are alternately supplied a welding unit 13 comprises a series circuit of a transistor 2, a reactor 3 and a current detector 4 connected between a single power source 1 and the welding unit, and a control circuit 20 for switching the transistor on and off in response to inputs from the current detector, pulse current upper and lower limiters 7, 8, and base current upper and lower limiters 21, 22.

摘要翻译： 一种脉冲电弧焊接装置，其中交替地提供脉冲电流和基极电流，焊接单元13包括连接在单个电源1和焊接单元之间的晶体管2，电抗器3和电流检测器4的串联电路， 控制电路20，用于响应于来自电流检测器，脉冲电流上限和下限7,8以及基极电流上下限21,22的输入而导通和截止晶体管。

公开(公告)号：US4427874A

公开(公告)日：1984-01-24

申请号：US281260

申请日：1981-07-08

申请人： Youichiro Tabata ,  Shigeo Ueguri ,  Takaji Mizuno ,  Masanori Mizuno

发明人： Youichiro Tabata ,  Shigeo Ueguri ,  Takaji Mizuno ,  Masanori Mizuno

IPC分类号： B23K9/09 ,  B23K9/095

CPC分类号： B23K9/091

摘要： A pulse arc welding machine in which, when any one of the material and diameter of a consumable wire electrode or the shielding gas used is varied, a peak current value and pulse width of a pulse current applied between a consumable wire electrode and a base material being welded as well as a wire feeding speed required for optimum welding conditions are automatically adjusted. The welding machine includes a consumable wire electrode, a wire feeding unit for the wire electrode, a base current source, and a pulse current source for supplying a pulse current superposed on the base current. A sensor detects the arc discharge voltage between the consumable electrode and the base material being welded. The quantity of heat applied to the electrode is corrected by comparing an output detection signal produced by the sensor with a preset arc voltage and then producing a pulse width instruction signal in response to the difference signal for setting the pulse width of the pulse current. When the detected arc voltage is large, the quantity of heat applied to the electrode by the welding current is decreased and the wire feeding speed is increased, while when the arc voltage is small, the quantity of heat applied to the wire electrode is increased and the wire feeding speed decreased.

摘要翻译： 一种脉冲电弧焊接机，其中，当消耗线电极的材料和直径或使用的保护气体中的任何一种发生变化时，施加在可消耗线电极和基材之间的脉冲电流的峰值电流值和脉冲宽度 被焊接以及最佳焊接条件所需的送丝速度被自动调节。 焊接机包括消耗线电极，用于线电极的送丝单元，基极电流源和用于提供叠加在基极上的脉冲电流的脉冲电流源。 传感器检测消耗性电极和被焊接的基材之间的电弧放电电压。 通过将由传感器产生的输出检测信号与预置的电弧电压进行比较来校正施加到电极的热量，然后响应用于设置脉冲电流的脉冲宽度的差信号产生脉冲宽度指令信号。 当检测到的电弧电压大时，通过焊接电流施加到电极的热量减少并且焊丝进给速度增加，而当电弧电压小时，施加到线电极的热量增加，并且 送丝速度降低。

公开(公告)号：US4469933A

公开(公告)日：1984-09-04

申请号：US349553

申请日：1982-02-17

申请人： Masanori Mizuno ,  Hirohisa Segawa ,  Takaji Mizuno

发明人： Masanori Mizuno ,  Hirohisa Segawa ,  Takaji Mizuno

IPC分类号： B23K9/073 ,  B23K9/09 ,  B23K9/10

CPC分类号： B23K9/091 ,  B23K9/0732

摘要： A power source includes first and second control circuit for controlling the current provided during short-circuit and arc intervals, respectively. A transistor in series with the power supply is controlled in response to either of the control circuits.

摘要翻译： 电源包括用于分别控制在短路和电弧间隔期间提供的电流的第一和第二控制电路。 响应于任一个控制电路来控制与电源串联的晶体管。

公开(公告)号：US4442339A

公开(公告)日：1984-04-10

申请号：US401774

申请日：1982-07-26

申请人： Takaji Mizuno ,  Hiroshi Suwahara ,  Hirohisa Segawa

发明人： Takaji Mizuno ,  Hiroshi Suwahara ,  Hirohisa Segawa

IPC分类号： B23K9/06 ,  B23K9/073 ,  B23K9/10

CPC分类号： B23K9/0732 ,  B23K9/0731

摘要： A DC arc welding apparatus compares the output voltage with an adjustable, preset voltage, and the amplified and integrated difference signal is supplied to a current control circuit together with a current feedback signal. The resulting apparatus operates in a constant voltage mode, thus rendering it applicable to consumable electrode welding. A constant current mode may also be realized, as an alterantive, by bypassing the comparator and feeding the preset voltage directly to the current control circuit.

摘要翻译： 直流电弧焊接装置将输出电压与可调节的预设电压进行比较，并将放大和积分的差信号与电流反馈信号一起提供给电流控制电路。 所得装置以恒定电压模式工作，从而使其适用于消耗电极焊接。 通过旁路比较器并将预设电压直接馈送到电流控制电路，也可以实现恒定电流模式作为改变。

公开(公告)号：US4425493A

公开(公告)日：1984-01-10

申请号：US281530

申请日：1981-07-08

申请人： Takaji Mizuno ,  Masanori Mizuno ,  Hirotsugu Komura ,  Shigeo Ueguri ,  Youichiro Tabata

发明人： Takaji Mizuno ,  Masanori Mizuno ,  Hirotsugu Komura ,  Shigeo Ueguri ,  Youichiro Tabata

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。