WELDED TURBINE SHAFT AND METHOD FOR PRODUCING SAID SHAFT

摘要

The welded turbine shaft (3) which is orientated in a longitudinal direction (4) has a center section (20) and two outer sections (21,22) fastened on the center section in the longitudinal direction. The center section is manufactured from a material which is more resistant to high heat than the two outer sections. The two outer sections are each connected to the center section through a weld (24,25). - Independent claims are also included for the following: - (A) a method for the manufacture of a turbine shaft in which the center section of the shaft consists of a material with resistance to high heat; and - (B) a steam turbine equipped with the shaft as specified in the invention.