Method of making laboratory degraded heat transfer tubes for steam generator

摘要

Preparing the heat exchanger tube for specimen formation, subjecting the heat transfer tube to sensitizing heat treatment, and contacting the heat exchanger tube surface with an oxidizing solution with application of a radial denting load that stresses the heat transfer tube from the outside to the center of the heat transfer tube Disclosed is a method for fabricating a specimen of a steam generator heat pipe comprising a cracking step. Subsequent to the cracking step, the step of corrosion in a hydrothermal environment, usually high temperature and high pressure, is further provided.;According to the present invention, since it is possible to produce a crack specimen with the steam generator heat transfer having the same shape as the actual shape, by using it more precisely to study the safety and life extension of the pressurized water light reactor, and non-destructive inspection of the steam generator heat pipe Can increase the reliability.