| 摘要 |
An ion electrical arc welding method employs a welding gun provided with non-deflection type electrode, an inner nozzle wrapping the non-deflection type electrode, and an outer nozzle wrapping the inner nozzle; the method comprises the following steps: charging first main arc current between the non-deflection type electrode and a first base metal; a first mobile step of enabling the non-deflection type electrode to relatively move to a first direction of the first base metal from the front end of the non-deflection type electrode relative to the inner nozzle in the period of the step of charging the first main arc current; a step of middle guiding arc current conduction between the non-deflection type electrode and the outer nozzle after the first mobile step is started; a step of stopping the first main arc current conduction after the step of middle guiding arc current conduction; a step of starting a second main arc current conduction between the non-deflection type electrode and a second base metal in the period of flowing middle guiding arc current. By employing the structure, the high frequency voltage can be prevented from being applied even if the welding gun with dual-structure is used. |
