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世界各国焊接钢轨都经历了采用断续预热闪光焊工艺的漫长发展过程。我国采用闪光焊焊轨已有30年历史,也都使用这类焊机。 断续预热闪光焊焊机存在着电功率消耗
Welding rails all over the world have experienced a long process of intermittent preheating flash welding process. China has adopted flash welding track 30 years of history, also use this type of welding machine. Intermittent preheating flash welder there is electric power consumption