Atomenergomash is the engineering division of Russia's state nuclear corporation, ROSATOM. The operation lasted for ten days with continuous heating of the weld zone - from 150 to 300 degrees Celsius. During this time, about two tons of flux and more than one and a half tons of wire were used.
After welding, the RPV weighing 320 tons will be heated to 300 degrees and, using a crane, will be transferred to the furnace for two days of heat treatment.
Atomenergomash is the supplier of all the equipment for the reactor compartment of Rooppur NPP and a significant part of the equipment for the machine room.