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壁厚大于等于10毫米的材料采用窄间隙对接焊时,能显著提高焊接速度,降低热量输入。为了使窄间隙焊接方式取得成功,人们进行了长达二十年之久的研究,这些技术大部分以自耗电极输送过程为基础。采用冷
Wall thickness greater than or equal to 10 mm material with a narrow gap butt welding, can significantly improve the welding speed and reduce heat input. In order to make the narrow-gap welding method successful, people have conducted research for more than two decades. Most of these techniques are based on the consumable electrode transport process. Use cold