Abstract: In a hot isostatic pressing (HIP) method, the component to be treated, affected by imperfections, like porosity, cracks and cavities in its structure, is placed into a container together with non-metallic material in form of powder or grains having size greater than the porosity and the cracks and imperfections of the component. During the HIP process, the non-metallic material presses on the whole surface of the embedded component in order to generate a combination of temperature and forces capable to reduce defects, embedded and not embedded, in the component itself. The component is not contaminated during the process thus allowing easily removal of the non-metallic material by a simple operation of mechanical cleaning or chemical washing.

Abstract: In a hot isostatic pressing (HIP) method, the component to be treated, affected by imperfections, like porosity, cracks and cavities in its structure, is placed into a container together with non-metallic material in form of powder or grains having size greater than the porosity and the cracks and imperfections of the component. During the HIP process, the non-metallic material presses on the whole surface of the embedded component in order to generate a combination of temperature and forces capable to reduce defects, embedded and not embedded, in the component itself. The component is not contaminated during the process thus allowing easily removal of the non-metallic material by a simple operation of mechanical cleaning or chemical washing.

Abstract: Protection device for a stator of a turbine of the type comprising a series of annular sectors constrained to each other by means of connection means, each sector of the series of sectors comprises a first surface, suitable for contacting the stator which has at least one cavity for the cooling of the corresponding sector, and a second surface which faces a rotor of the turbine. In a rest configuration in which the turbine is not operating, the second surface of each sector has an axial section having an eccentricity with respect to the trace of the rotation axis of the turbine, whereas in an operating configuration in which the turbine is operating under regime conditions, the second surface of each sector has an axial section which is centered with the trace of the rotation axis of the turbine.

Abstract: Protection device (10) for a stator of a turbine of the type comprising a series of annular sectors (12) constrained to each other by means of connection means, each sector of said series of sectors (12) comprises a first surface (13), suitable for contacting the stator which has at least one cavity (14) for the cooling of the corresponding sector, and a second surface (17) which faces a rotor of the turbine. In a rest configuration in which the turbine is not operating, the second surface (17) of each sector (12) has an axial section having an eccentricity (40) with respect to the trace of the rotation axis of the turbine, whereas in an operating configuration in which the turbine is operating under regime conditions, the second surface (17) of each sector (12) has an axial section which is centered with the trace of the rotation axis of the turbine.