【摘要】 以碳钢换热管与不锈钢堆焊层的管子管板的封口焊为例,介绍了管子管板封口焊的焊接工艺制定及其产品的焊接。并通过一系列焊接工艺试验,确定采用管子内缩管板和高铬镍焊材及自动脉冲钨极氩弧焊方法,提高了管子管板的焊接质量和可靠性。更多还原

【Abstract】 Taking the tube-tube sheet welding between carbon steel heat exchanger tube and stainless bead welding layer for example,the establishment of welding procedure of tube-tube sheet welding and the fabrication of equipment were introduced in this article.A series of welding process testing showed that using recessed tube-tube sheet,high Cr-Ni welding materials and automatic TIG welding technology could improve the welding quality of tube-tube sheet and its reliability.更多还原