Research on Quality Control of Assembly Welding of 800H and T22 Heat Exchange Tubes
Heat exchange tubes of high-temperature gas-cooled reactor steam generator are assembly welded structure of Incoloy800H(800H)and SA-213 T22(T22)tubes,with the characteristics of long tube length and complex structure.In order to meet the quality requirement of assembly welding,655 pre-bent tubes are prepared for assembly welding in the steam generator,the welding work is very difficult.For the purpose of reducing welding failure,this study analyzes the difficulties and risks of heat exchange tube assembly welding work,and takes corresponding control measures to ensure the quality of assembly welding,so as to provide guidance on assembly welding of high-temperature gas-cooled reactor steam generator.
NETL
NSTL
万方数据
