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接触焊方面的改进目前世界各国对接触焊的研究趋于大幅度的减少,国内某些大学的焊接专业也取消了接触焊方面的课程,这主要与接触焊的接头采用搭接形式,因而费材料以及电能利用率低等有关。这里仅介绍国外有关节电方面的改进情况。1.无电流顶锻闪光焊大截面闪光对焊,需要很大功率。经研究发现,在焊接过程中,只是在顶锻时因次级回路短路功率才大大上升。据此,日本大阪大学与大阪电气公司合作,研制并生产了无电流顶
Contact welding improvements At present, the research on contact welding in various countries in the world tends to be drastically reduced. Some domestic universities also cancel the course of welding in contact welding, which is mainly due to the lap joint with the contact welding. Materials and low energy utilization. Here only introduces the foreign energy-saving improvements. 1. No current forging flash welding large cross-section flash butt welding, you need a lot of power. The study found that, in the welding process, just because of the secondary circuit short circuit power was greatly increased. Accordingly, Osaka University in Japan and Osaka Electric Company to develop and produce a current-free top