公开(公告)号：US20050051525A1

公开(公告)日：2005-03-10

申请号：US10741990

申请日：2003-12-19

申请人： Minoru Yamada ,  Akio Tejima

发明人： Minoru Yamada ,  Akio Tejima

IPC分类号： B23K9/073 ,  B23K9/08 ,  B23K9/09 ,  B23K9/10 ,  B23K9/167

CPC分类号： B23K9/1068 ,  B23K9/1675

摘要： A TIG welding apparatus comprises; a twin electrode type welding torch 1 having a first and a second welding electrode 1a, 1b arranged approximately parallel and either side of an insulation plate of a predetermined thickness, and a main unit 2 which supplies to the first welding electrode 1a a first welding current varied at a first period F, and to the second welding electrode 1b a second welding current varied at the first period F and at an opposite phase to the variation of the first welding current. The main unit 2 superimposes a variation of a second period fm being shorter than the first period F, onto the first and second welding currents. As a result, the arc current is increased without increasing the welding current.

摘要翻译： TIG焊接装置包括： 具有大致平行布置的预定厚度的绝缘板的第一和第二焊接电极1a，1b的双电极型焊枪1和向第一焊接电极1a供给第一焊接电流的主单元2 在第一时段F变化，第二焊接电极1b在第一周期F变化的第二焊接电流和与第一焊接电流的变化相反的相位。 主单元2将第一周期fm的第二周期fm的变化与第一和第二焊接电流重叠。 结果，电弧电流增加而不增加焊接电流。

公开(公告)号：US4366362A

公开(公告)日：1982-12-28

申请号：US231141

申请日：1981-02-03

申请人： Ichiro Ohta ,  Akio Tejima ,  Masayuki Watando ,  Akira Yamaoka ,  Kouzi Ishiwata ,  Minoru Yamada

发明人： Ichiro Ohta ,  Akio Tejima ,  Masayuki Watando ,  Akira Yamaoka ,  Kouzi Ishiwata ,  Minoru Yamada

IPC分类号： B23K9/16 ,  B23K9/09 ,  B23K9/167

CPC分类号： B23K9/091 ,  B23K9/167

摘要： In a TIG welding process with controlled welding current pulses, DC current pulses with the frequency set at from tens to hundreds Hz (most preferably from 30 to 300 Hz) are fed to an electrode and current pulses are also fed to a filler wire so that an arc is caused to swing, whereby a large pool of molten metal can be maintained in a positive and stable manner due to the high arc pressure obtained when the welding current pulses at from tens to hundreds Hz is used.

摘要翻译： 在具有受控焊接电流脉冲的TIG焊接工艺中，将频率设置为几十到几百赫兹（最优选30至300Hz）的直流电流脉冲馈送到电极，并且电流脉冲也被馈送到填充线，使得 使电弧摆动，由于当使用几十到数百赫兹的焊接电流脉冲时获得的高电弧压力，可以以正和稳定的方式保持大量的熔融金属。

公开(公告)号：US06982397B2

公开(公告)日：2006-01-03

申请号：US10741990

申请日：2003-12-19

申请人： Minoru Yamada ,  Akio Tejima

发明人： Minoru Yamada ,  Akio Tejima

IPC分类号： B23K9/09

CPC分类号： B23K9/1068 ,  B23K9/1675

摘要： A TIG welding apparatus comprises; a twin electrode type welding torch 1 having a first and a second welding electrode 1a, 1b arranged approximately parallel and either side of an insulation plate of a predetermined thickness, and a main unit 2 which supplies to the first welding electrode 1a a first welding current varied at a first period F, and to the second welding electrode 1b a second welding current varied at the first period F and at an opposite phase to the variation of the first welding current. The main unit 2 superimposes a variation of a second period fm being shorter than the first period F, onto the first and second welding currents. As a result, the arc current is increased without increasing the welding current.

摘要翻译： TIG焊接装置包括： 具有大致平行布置的预定厚度的绝缘板的第一焊接电极1a和第二焊接电极1b的双电极型焊枪1以及首先向第一焊接电极1a供给的主单元2 焊接电流在第一周期F变化，而第二焊接电极1的第二焊接电流在第一周期F变化，并且与第一焊接电流的变化相反。 主单元2将第一周期fm的第二周期fm的变化与第一和第二焊接电流重叠。 结果，电弧电流增加而不增加焊接电流。