Quality control of installation and welding of HPR1000 nuclear island steel lining bottom plate
As an important part of HPR1000 nuclear island steel lining,steel lining bottom plate has the characteristics of large welding engineering,tight construction period and difficult construction.The analysis results showed that the quality of weld root fusion,slag cleaning and repair process control were the key points in the construction quality control of the steel lining bottom plate.Through a series of targeted construction quality control measures,such as group bonding control,bottom welding process optimization,tunnel cleaning control,repair excavation and welding control,the quality of HPR1000 nuclear island steel lining bottom plate was effectively guaranteed,which provided a certain reference for the welding quality control of thin-walled large-sized equipment or components.
nuclear plantsteel liningbottom plateinstallation and weldingquality control