TA2换热器管与管板自熔焊焊接工艺

Study on self-fusible welding procedure for TA2 heat exchanger’s tube and tube sheet

通过对TA2换热器管(φ16mm×1.0mm)和管板(δ10mm)进行自熔TIG焊接,自制出插销对焊接接头进行背面保护,与焊机保护罩的正面保护相结合,将焊接接头严格保护使其免受空气污染,同时对焊接参数进行优选,确保了焊接接头质量,对实际产品中TA2的焊接有一定的指导作用。

According to the self-fusible welding characteristics of the TA2 tube(φ16 nnn×1.0 mm) and tube sheet(δ=10 mm ),special in-serf pins were designed to protect the back of the welded joints, combining with the welding machine’s protecting cover,will strictly keep thewelded joints away from the gas impurity,meanwhile the welding parameters were optimized to ensure that the quality of welded joints. Thewelding procedure play a guiding role in the TA2 welding of the actual product.