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    • 1. 发明授权
    • Pulse arc welding machine
    • 脉冲弧焊机
    • US4425493A
    • 1984-01-10
    • US281530
    • 1981-07-08
    • Takaji MizunoMasanori MizunoHirotsugu KomuraShigeo UeguriYouichiro Tabata
    • Takaji MizunoMasanori MizunoHirotsugu KomuraShigeo UeguriYouichiro Tabata
    • B23K9/09
    • B23K9/091
    • 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.
    • 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。
    • 2. 发明授权
    • Pulse arc welding machine
    • 脉冲弧焊机
    • US4427874A
    • 1984-01-24
    • US281260
    • 1981-07-08
    • Youichiro TabataShigeo UeguriTakaji MizunoMasanori Mizuno
    • Youichiro TabataShigeo UeguriTakaji MizunoMasanori Mizuno
    • B23K9/09B23K9/095
    • B23K9/091
    • 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.
    • 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。
    • 3. 发明授权
    • Short circuit transfer arc welding machine
    • 短路转移电弧焊机
    • US4485293A
    • 1984-11-27
    • US366614
    • 1982-04-08
    • Youichiro TabataShigeo UeguriTakaji MizunoHirohisa SegawaSeigo Hiramoto
    • Youichiro TabataShigeo UeguriTakaji MizunoHirohisa SegawaSeigo Hiramoto
    • B23K9/09
    • B23K9/092
    • A short circuit transfer arc welding machine including a wire electrode which is fed towards a base metal, a DC source for applying a voltage across the base metal and the wire electrode, a switching element for interrupting the voltage, a voltage detector for detecting a voltage developed across the base metal and the wire electrode, a first comparator for determining when a detection voltage outputted by the voltage detector reaches a voltage value corresponding to the short circuiting of the base metal and wire electrode, a second comparator for determining when the detection voltage of said voltage detector reaches an arc discharge voltage, and a switching element control circuit for closing the switching element in response to a signal from the first comparator and for opening the switching element in response to a signal from the second comparator.
    • 一种短路转移电弧焊机,其特征在于,包括向母材供给的线电极,用于施加电压跨越所述母金属和所述线电极的直流电源,用于中断所述电压的开关元件,用于检测电压的电压检测器 跨越基底金属和线电极开发的第一比较器,用于确定由电压检测器输出的检测电压何时达到与母体金属和线电极的短路相对应的电压值的第一比较器,用于确定何时检测电压 所述电压检测器达到电弧放电电压;以及开关元件控制电路,用于响应于来自所述第一比较器的信号闭合所述开关元件,并响应于来自所述第二比较器的信号来打开所述开关元件。
    • 5. 发明授权
    • Pulse arc welding machine
    • 脉冲弧焊机
    • US4438317A
    • 1984-03-20
    • US281263
    • 1981-07-08
    • Shigeo UeguriHirotsugu KomuraTakaji Mizuno
    • Shigeo UeguriHirotsugu KomuraTakaji Mizuno
    • B23K9/09
    • B23K9/091
    • 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.
    • 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 。