En styrstav för kärnreaktorer, samt ett sätt att tillverka en styrstav

摘要

A neutron absorber of composite material with a hafnium plate and a zirconium plate bonded to the hafnium plate has a cross shape in horizontal cross section. The zirconium plate is arranged on the surface of the neutron absorber which contacts reactor water. Wings (124) are fixed with fixing units in thickness direction of each wing, with the fixing unit arranged at positions in vicinity of bases in the wings. The wings are formed from the composite material to provide a cross shape in which a front end structural unit is fixed to upper portions of the wings with the fixing units. An independent claim is included for a method for manufacturing the control rod.