| 摘要 |
Method in reconstructing blades and vanes in steam turbines at existing erosion damages. After removal of the portion of the blade or vane having erosion damages, a replacement portion of a material that can be easily melt or dissolved, is built up on the blade or vane, said portion replacing the original profile of the blade or vane. Around the blade or vane thus reconstructed a graphite mold is provided having an ingot, said replacement portion being removed by melting or dissolving the material thereof. A metal powder is hot pressed isostatically in the remaining cavity in the graphite mold, said mold then being 16 removed from the blade or vane reconstructed to a mono- lithic body. |
