| 摘要 |
A semi-automatic or automatic welding apparatus using two or more motors having drooping characteristics approximating constant speed for feeding a consumable welding electrode wire, wherein the distance from a wire reel to a welding torch is increased, and the portable portion reduced in size and weight, whereby the maneuverability and portability of the semi-automatic or automatic welding apparatus are improved and the stability of the wire feed is enhanced. |
