Cutting blade of fuel assembly channel box cutting device

摘要

(57) [Summary] [Objective] The cutting load is averaged to reduce the maximum cutting load, extend the life of the parts constituting the cutting device, and reduce the cutting cost of the fuel assembly channel box. When the pressing blade 3 is pressed against the receiving blade 2 from the outside of the corner portion 1a of the fuel assembly channel box 1, Inside the corner portion 1a of the fuel assembly channel box 1, the receiving blades 2 are arranged so that the entire receiving blades 2 do not abut simultaneously. In the positional relationship with the corner portion 1a of the fuel assembly channel box 1, the blade portion 4 substantially perpendicular to the longitudinal direction of the fuel assembly channel box 1 is substantially aligned with the longitudinal direction of the fuel assembly channel box 1. The blades 5 are projected more than the parallel blades 5.