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19 1.5 zi tong guan zuo hu han dan mian han shuang mian cheng xing gong yi
Author(s): 
Pages: 18
Year: Issue:  3
Journal: Welding Technology

Keyword:  紫铜管单面焊双面成形氩弧焊中间冷却器德马格焊接结构试压埋弧自动焊钨极焊透;
Abstract: <正> 在我厂自行设计、自行制造的我国第一台大型“德马格”空气压缩机中,每级中间冷却器的芯子都是由180根φ19×1.5的紫铜管与管板锡焊而成。全机共需540根紫铜管。为了在试压或使用过程中便于更换冷却芯子管子,对管子采用了头部直径大、管身直径小的结构。由于管子总长达3米之多,加工制造有困难,因而就改为管口与管身的焊接结构。管子焊后要求
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