公开(公告)号：US4877941A

公开(公告)日：1989-10-31

申请号：US192622

申请日：1988-05-11

申请人： Masahiro Honma ,  Maruyama Tokuji ,  Masashi Okada ,  Yukio Hida

发明人： Masahiro Honma ,  Maruyama Tokuji ,  Masashi Okada ,  Yukio Hida

IPC分类号： B23K9/10

CPC分类号： B23K9/1075 ,  B23K9/1056

摘要： A power supply system for consumable electrode arc welding alternately switches between the reverse polarity and the straight polarity. The formation of an arc is detected. A polarity change control signal is generated when the arc duration reaches a predetermined time or when the quantity of charge reaches a predetermined value. The predetermined value of the welding current or voltage is reduced either immediately before or after the change in polarity.

摘要翻译： 用于消耗电极电弧焊的电源系统交替地在反极性和直极性之间切换。 检测出弧的形成。 当电弧持续时间达到预定时间时或当电荷量达到预定值时，产生极性变化控制信号。 在极性变化之前或之后，焊接电流或电压的预定值减小。

公开(公告)号：USRE33330E

公开(公告)日：1990-09-11

申请号：US896104

申请日：1986-08-13

申请人： Takaaki Ogasawara ,  Tokuji Maruyama ,  Masaharu Sato ,  Yukio Hida ,  Takashi Saito

发明人： Takaaki Ogasawara ,  Tokuji Maruyama ,  Masaharu Sato ,  Yukio Hida ,  Takashi Saito

IPC分类号： B23K9/095

CPC分类号： B23K9/0956

摘要： A method of controlling the output of a power source in consumable electrode are welding in which a short circuiting phase and an arcing phase alternately take place between a consumable electrode and a workpiece in a shielding gas atmosphere, the method being characterized by repetition of a cycle of operation consisting of: a first stage of maintaining the output welding current at a first value of a relatively low level upon establishment of a short circuit across a gap between a consumable electrode and a workpiece; a second stage of maintaining the welding current at a second value of a relatively high level succeedingly to the first stage; a third stage of lowering the welding current to a third value of a low level upon detection of necking as a premonition of rupture of short circuiting molten metal between the electrode and workpiece; a fourth stage of, upon generation of an arc across a gap between the electrode and workpiece subsequent to the third stage, maintaining the welding current at a fourth value of a relatively high level exceeding the value of average welding current; and a fifth stage of maintaining the welding current at a fifth value of a relatively low level until the gap between the electrode and workpiece is short-circuited, under control of substantially constant current characteristics to feed current of constant level irrespective of variations in arc length.

公开(公告)号：US4546234A

公开(公告)日：1985-10-08

申请号：US596686

申请日：1984-04-04

申请人： Takaaki Ogasawara ,  Tokuji Maruyama ,  Masaharu Sato ,  Yukio Hida ,  Takashi Saito

发明人： Takaaki Ogasawara ,  Tokuji Maruyama ,  Masaharu Sato ,  Yukio Hida ,  Takashi Saito

IPC分类号： B23K9/09 ,  B23K9/12

CPC分类号： B23K9/125 ,  B23K9/091

摘要： A method of controlling the output of a power source in consumable electrode arc welding in which a short circuiting phase and an arcing phase alternately take place between a consumable electrode and a workpiece in a shielding gas atmosphere, the method being characterized by repetition of a cycle of operation consisting of: a first stage of maintaining the output welding current at a first value of a relatively low level upon establishment of a short circuit across a gap between a consumable electrode and a workpiece; a second stage of maintaining the welding current at a second value of a relatively high level succeedingly to the first stage; a third stage of lowering the welding current to a third value of a low level upon detection of necking as a premonition of rupture of short circuiting molten metal between the electrode and workpiece; a fourth stage of, upon generation of an arc across a gap between the electrode and workpiece subsequent to the third stage, maintaining the welding current at a fourth value of a relatively high level exceeding the value of average welding current; and a fifth stage of maintaining the welding current at a fifth value of a relatively low level until the gap between the electrode and workpiece is short-circuited, under control of substantially constant current characteristics to feed current of constant level irrespective of variations in arc length.

摘要翻译： 一种在消耗电极电弧焊中控制电源输出的方法，其中在易损电极和工件之间在保护气体气氛中交替发生短路相和电弧相，该方法的特征在于重复循环 包括：在消耗电极和工件之间的间隙上建立短路时，将输出焊接电流维持在相对较低电平的第一值的第一阶段; 第二阶段将焊接电流维持在第一阶段之后的相对较高水平的第二值; 在检测到颈缩时将焊接电流降低到第三值的第三阶段，作为在电极和工件之间短路熔融金属的破裂的预防措施; 第四阶段，在第三阶段之后在电极和工件之间的间隙上产生电弧，将焊接电流保持在超过平均焊接电流值的相对高的水平的第四值; 以及将焊接电流保持在相对较低电平的第五值直到电极和工件之间的间隙短路的第五阶段，在基本上恒定的电流特性的控制下，恒定电平的馈电电流与电弧长度的变化无关 。