WELD BEAD CUTTING DEVICE AND METHOD FOR EXTRACTING RADIAL PIN FROM STEAM TURBINE

摘要

A radial pin (2) has one end (2A) inserted into a through hole (3) formed in a turbine wheel chamber (1) and the other end (2B) protruding from an outer surface of the turbine wheel chamber (1), and has a weld bead (4) formed on the outer circumference of the other end (2B). A weld bead cutting device (10) is provided with a cutting section (12) for cutting the weld bead (4) formed on the outer circumference of the radial pin (2) and a support section (20) that supports the cutting section (12) on an end surface (2C) of the other end (2B) so as to be freely movable along the outer circumference of the radial pin (2).