Method for regenerating diaphragm petals

Method for regenerating diaphragm petals, wherein it comprises at least the following phases:

• supply of at least one petal to be regenerated, wherein said petal to be regenerated comprises:
• at least one hole associable with a frame (T) of a diaphragm (D) and defining an axis of rotation (R1) around which, in use, said petal to be regenerated is movable between an opening position, wherein it partly defines a passage opening of said diaphragm, and a closure position, wherein it partly occludes said passage opening;
• at least a first worn surface defining, in use, at least part of said passage opening;
• at least a second worn surface, contiguous to said first worn surface and, in use, associated with the first surface of an adjacent petal in a sliding manner;
• at least one worn vertex located between said first worn surface and said second worn surface;
• grinding of said first worn surface and of said second worn surface to obtain a first ground surface, a second ground surface and a new vertex located between them, wherein the spacing between said new vertex and said axis of rotation (R1) is less than an original reference value;
• definition of a new hole defining a new axis of rotation (R2) wherein the spacing between said new vertex and said new axis of rotation (R2) corresponds to said original reference value.