Apparatus for retrieving witness samples from the field CELL spacing grid of hexagonal shape

摘要

The invention relates to nuclear power engineering and can be used in enterprises for the manufacture of fuel assemblies (FA) for a nuclear reactor, in particular, during the destructive testing of welded joints contact-cells in spacing grids of fuel assemblies. Summary of the utility model: to extract the sample witness out of hexagonal spacer grid slider is rotatably disposed in the casing, the slide grooves have a shaped profile with protrusions allowing when placed in the sample-witness device to rotate the slide relative to the cells, the protrusions formed grooves, come under the witness sample, the handle connected to the support element pivot axis while rotating around which interact with a rack formed on the slide, by means of teeth.