在管壳式热交换器的制造中,管子与管板的联接接头是两个热交换回路的联接点,必须具有良好的机械强度和密封性,接头质量直接影响了热交换器的质量和使用寿命以及安全性,尤其在核设备和化工设备中,管子与管板的接头,对一、二回路及有毒有害介质 In the manufacture of shell-and-tube heat exchangers, the coupling of the tube to the tube sheet is the point of attachment of the two heat exchange circuits and must have good mechanical strength and tightness. The quality of the joint directly affects the quality and use of the heat exchanger Life expectancy and safety, especially in nuclear equipment and chemical equipment, pipe and tube plate joints, on the first and second loop and toxic and harmful media