Analysis on Key Points in Drop Weight Test Process of Iron and Steel Materials for Nuclear Power

In order to solve the problem that the re-inspection nil-ductility temperature T_NDT of nuclear power materials was not consistent with the test results of raw material factory, starting from the basic requirements of the drop weight test, combined with the specific test operation, the process key points of the drop weight test of iron and steel materials for nuclear power were analyzed. It is expected to improve the accuracy of drop weight test and the consistency of test results.