Аннотация
The article presents the technological cycle of manufacturing the outer casing of an immovable ampoule NA-228 of the Pulsed Graphite Reactor (IGR) made of stainless steel 12X18H10T. The results of strength analysis of structural elements and casing manufacturing technology are presented. By welding control samples, the optimal welding parameters of the casing segments were determined, as well as the number of tacks and layers, order and number of passes ensuring high product quality.