METHODS FOR CALANDRIA TUBE SHEET BORE PREPARATION, CLEANING, AND INSPECTION FOR USE IN RETUBING OF A NUCLEAR REACTOR

摘要

A method of preparing a calandria tube sheet bore for receiving a calandria tube. The method includes the steps of polishing the bore of the calandria tube sheet; and inspecting the bore, wherein the steps of polishing the bore and inspecting the bore are repeated if there are geometric deviations from a uniform engineered surface in the bore that provide a potential leak pathway in the final fabricated joint.