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紫铜与低合金钢焊接时的主要问题是焊缝易产生热裂纹， 低合金钢侧近缝区较易形成渗透裂纹。为此， 对采用 Ｔ Ｉ Ｇ 自熔焊焊接铜管与１６ Ｍｎ Ｒ管板接头的焊接性进行了分析；叙述了该项工艺试验及工艺评定的结果；详细介绍了紫铜管换热器产品管板接头的焊接工艺。
Copper and low alloy steel welding the main problem is easy to produce hot cracking weld, low alloy steel near the seam area is easier to form a penetration crack. Therefore, the weldability of T I G self-flux welded copper tube and 16 Mn R tube plate joint is analyzed. The results of the technological test and process evaluation are described. The copper tube heat exchanger product Pipe plate joints of the welding process.