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    AC pulse arc welding control method
    2.
    发明公开
    AC pulse arc welding control method 有权
    Steuerverfahren zumLichtbogenschweißenmit gepulstem Wechselstrom

    公开(公告)号：EP2202024A1

    公开(公告)日：2010-06-30

    申请号：EP09252849.6

    申请日：2009-12-21

    申请人： Daihen Corporation

    发明人： Shiozaki, Hideo ,  Nishisaka, Futoshi ,  Takahashi, Norihito ,  Uezono, Toshiro ,  Mondori, Hiroyasu ,  Hirota, Shugo ,  Nakagawa, Shinichiro ,  Ueyama, Tomoyuki

    IPC分类号： B23K9/09

    CPC分类号： B23K9/09

    摘要： A control method for AC pulse arc welding performed upon application of cyclic AC welding current is provided. The welding current has a cycle including an electrode negative polarity period and an electrode positive polarity period subsequent to the electrode negative polarity period. In the control method, an electrode negative polarity base current (Ibn) and a subsequent electrode negative polarity peak current (Ipn) are applied during the electrode negative polarity period. The electrode negative polarity base current has an absolute value smaller than a first critical value, and the electrode negative polarity peak current has an absolute value greater than the first critical value. Then, an electrode positive polarity peak current (Ip) is applied during the electrode positive polarity period. The electrode positive polarity peak current has a value greater than a second critical value.

    摘要翻译： 提供了在施加循环AC焊接电流时执行的交流脉冲电弧焊接的控制方法。 焊接电流具有包括电极负极性周期和电极负极性周期之后的电极正极性周期的周期。 在控制方法中，在电极负极性期间施加电极负极性基极电流（Ibn）和随后的电极负极性峰值电流（Ipn）。 电极负极基极电流的绝对值小于第一临界值，电极负极性峰值电流的绝对值大于第一临界值。 然后，在电极正极性周期期间施加电极正极性峰值电流（Ip）。 电极正极性峰值电流具有大于第二临界值的值。

    Control method of welding arc length
    3.
    发明公开
    Control method of welding arc length 有权
    Verfahren zum Steuern derLichtbogenlänge

    公开(公告)号：EP0949035A2

    公开(公告)日：1999-10-13

    申请号：EP99302469.4

    申请日：1999-03-30

    申请人： Daihen Corporation

    发明人： Takashi, Norihito ,  Nishikawa, Waichi ,  Ueyama, Tomoyuki ,  Takeda, Tuneo ,  Tong, Honjyun

    IPC分类号： B23K9/073

    CPC分类号： B23K9/0735

    摘要： An arc length controlling method that is used in the practice of the pulsed welding in which welding is carried out by feeding an consumable electrode at a substantially constant speed while the pulse frequency f is set to a predetermined value. This method is carried out by effecting a welding after the counting time Tr and the target short-circuiting frequency Nr have been set, detecting the detected short-circuiting frequency Nk, and controlling the output voltage Vt to a value effective to allow the detected short-circuiting frequency Nk to be equal to the target short-circuiting frequency Nr.

    摘要翻译： 一种电弧长度控制方法，其用于实施脉冲焊接，其中通过在脉冲频率f设定为预定值的情况下以基本上恒定的速度馈送消耗电极进行焊接。 该方法通过在计数时间Tr和目标短路频率Nr设定后进行焊接来进行，检测检测到的短路频率Nk，并将输出电压Vt控制为有效的值，以允许检测短路 - 电路频率Nk等于目标短路频率Nr。

    Power supply for short-circuiting arc welding and automatic welding machine utilizing the same
    5.
    发明公开
    Power supply for short-circuiting arc welding and automatic welding machine utilizing the same 有权
    用于短路电弧焊的电源和利用它的自动焊机

    公开(公告)号：EP1410867A2

    公开(公告)日：2004-04-21

    申请号：EP03255852.0

    申请日：2003-09-18

    申请人： Daihen Corporation

    发明人： Ueyama, Tomoyuki ,  Uezono, Toshiro ,  Morimoto, Keiki

    IPC分类号： B23K9/10

    CPC分类号： B23K9/092

    摘要： A power supply for arc welding includes switching elements PTR, NTR for switching the polarity of the direct voltage from a power circuit PMC. The element PTR is connected in parallel to a series unit of a switching element TR1 and a resistor R1. Likewise, the element NTR is connected in parallel to a series unit of a switching element R2 and a resistor R2. A necking determination circuit ND determines whether a constriction occurs at the molten bridging portion between the welding wire and the base material. When the constriction occurs during the "electrode positive" mode, the switching element PTR is turned off, while the switching element TR1 is brought into the conduction state. When the constriction occurs during the "electrode negative" mode, the switching element NTR is turned off, while the switching element TR2 is brought into the conduction state.

    摘要翻译： 用于电弧焊接的电源包括用于切换来自电源电路PMC的直流电压的极性的开关元件PTR，NTR。 元件PTR与开关元件TR1和电阻器R1的串联单元并联连接。 类似地，元件NTR并联连接到开关元件R2和电阻器R2的串联单元。 颈缩确定电路ND确定焊丝和基材之间的熔融桥接部分是否发生收缩。 当在“电极正极”模式期间发生收缩时，开关元件PTR截止，而开关元件TR1进入导通状态。 当在“电极负极”模式期间发生收缩时，开关元件NTR截止，而开关元件TR2进入导通状态。

    Power supply for short-circuiting arc welding and automatic welding machine utilizing the same
    10.
    发明公开
    Power supply for short-circuiting arc welding and automatic welding machine utilizing the same 有权
    短弧焊电源和自动焊接装置为此

    公开(公告)号：EP1410867A3

    公开(公告)日：2004-11-24

    申请号：EP03255852.0

    申请日：2003-09-18

    申请人： Daihen Corporation

    发明人： Ueyama, Tomoyuki ,  Uezono, Toshiro ,  Morimoto, Keiki

    IPC分类号： B23K9/10 ,  B23K9/09

    CPC分类号： B23K9/092

    摘要： A power supply for arc welding includes switching elements PTR, NTR for switching the polarity of the direct voltage from a power circuit PMC. The element PTR is connected in parallel to a series unit of a switching element TR1 and a resistor R1. Likewise, the element NTR is connected in parallel to a series unit of a switching element R2 and a resistor R2. A necking determination circuit ND determines whether a constriction occurs at the molten bridging portion between the welding wire and the base material. When the constriction occurs during the "electrode positive" mode, the switching element PTR is turned off, while the switching element TR1 is brought into the conduction state. When the constriction occurs during the "electrode negative" mode, the switching element NTR is turned off, while the switching element TR2 is brought into the conduction state.