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本文介绍一种在主管上开孔翻边制出凸缘,然后把支管和凸缘对接焊接的接管方法,并对其特点、翻边工艺和设备作了较详细的叙述。
This article describes a method of forming flanges by perforating flanges in the main tube and then butting the tube and flanges in butt joint. The characteristics, flanging techniques and equipment are described in more detail.