| 摘要 |
FIELD: process engineering. ^ SUBSTANCE: invention relates to welding by consumable wire 13. Proposed method comprises removing slag from welding wire end, lighting welding arc 15 between welding wire 13 and processed part 16, and welding with feeding welding wire by wire feed mechanism towards processed part 16. Slag removal started, welding current is reduced to minimum. During slag removal, welding wire 13 is reciprocated, cyclically and repeatedly, towards processed part 16 with preset work stroke and with smaller stroke from part 16 unless control system detects short circuit between welding wire 13 and processed part 16 to strop welding. ^ EFFECT: reliable arc lighting. ^ 10 cl, 3 dwg |
