| 摘要 |
PURPOSE:To prevent erosion on the inner face of a shroud ring by attaching an erosion preventing plate between the covers at the top end of a moving blade. CONSTITUTION:An insertion slot 8 is formed along the transverse direction of a cover 3 in the face adjacent to the cover 3 formed integrally at the top end of moving blade 2 to attach an erosion preventing plate 7 to the slot 8. Thereby, erosion on the inner face of a shroud ring 4 can be prevented by preventing passage of oxidized scale through the gap between the covers 3. |
