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本文主要研究间距为35～45毫米管子对接接头的脉冲等离子弧横焊工艺和消除上咬边的重熔工艺。文中还介绍了申型等离子弧焊炬、焊缝质量闭环控制装置、焊缝背面保护罩的设计以及产品模拟试件的焊接。
This paper mainly studies the pulse plasma arc horizontal welding process of 35-45 mm pipe butt joints and the remelting process to eliminate the upper undercut. The paper also introduced the application of plasma arc torch, weld quality closed-loop control device, the design of the protective cover on the back of the weld and the welding of the product simulated test piece.