Method and device for manufacturing a sealing protective layer on a surface of a nuclear reactor component, and applications.

摘要

The surface of the component (1, 2) to be protected is swept with a semitransferred arc plasma jet (17) into which a metal powder is introduced. The method can be applied to producing a coating layer (18) on the external surface of a weld junction zone (3) between a tube (1) and a primary pipe (2) of a pressurised water nuclear reactor or to coating the internal surface or the junction surface of a penetration adapter for the vessel head of the reactor. <IMAGE>