公开(公告)号：US11931830B2

公开(公告)日：2024-03-19

申请号：US16981005

申请日：2019-03-08

申请人： Kobe Steel, Ltd.

发明人： Baini Jo ,  Shogo Nakatsukasa ,  Akira Ogawa ,  Eiji Sato

IPC分类号： B23K9/095 ,  B23K9/073 ,  B23K9/12 ,  B23K9/16

CPC分类号： B23K9/095 ,  B23K9/073 ,  B23K9/12 ,  B23K9/16

摘要： A control method for gas-shielded arc welding includes providing a normal arc period in which the welding current is maintained at a setting current Icc set in advance, and providing a separation control period after the separation timing of the molten droplet is detected in the normal arc period, the separation control period including a current decreasing section, a current maintaining section, and a current increasing section. In the separation control period, at least one of the following controls for preventing a short circuit is performed: control of an output voltage, control of a feeding speed, and control of a gas ratio.