In the case of one heat exchanger consist of tantalum(Ta) tube and Ta/16MnR clad sheet,the key factors for quality of welding joint between heat-exchanging tube and tube-plate was discussed.

• 分析了利用钽做换热管、Ta/16MnR复合板做管板的管板式换热器,影响管板焊接接头焊接质量的关键因素。