METHOD FOR PREVENTING THE CORROSION OF AN IMPELLER-SHAFT ASSEMBLY OF A TURBOMACHINE

摘要

A method for preventing corrosion of an impeller-shaft assembly of a turbomachine comprises the steps of assembling an impeller (2) on a shaft (3) in order to define an impeller-shaft assembly (1); plating the assembly (1) by inserting said assembly (1) into a plating bath (12); coating at least a first predefined surface (5) on the impeller (2) and a second predefined surface (7) on the shaft (3), the coating step is performed by spraying the predefined surfaces (5, 7).