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分别采用TIG焊及微束等离子弧焊两种焊接方法,对壁厚0.15 mm的不锈钢膜盒进行焊接工艺试验,提出了解决焊接电弧不稳的工艺措施.采用背面成形技术使膜盒的疲劳寿命提高90%以上.
TIG welding and micro-beam plasma arc welding were used to weld the stainless steel diaphragm with a wall thickness of 0.15 mm, respectively, and the technical measures to solve the unsteady welding arc were put forward.The fatigue life of the diaphragm case Improve more than 90%.