| 摘要 |
<p>Repairing gas turbine blades made of a superalloy, comprises: (a) separating a portion of the blade to be replaced; (b) adjusting a surface roughness to = 1.5 mu m, preferably = 1 mu m of the joining surface; (c) attaching a spare part made of a similar type of superalloy on the joining surface; (d) unidirectional force loading of the spare part to the joining surface with a pressure of 0.5-100 MPa; and (e) performing a diffusion welding process at 900-1250[deg] C in inert gas atmosphere and/or under reduced pressure. An independent claim is also included for a device for performing the above mentioned method, comprising at least one force pressurization body for unidirectional force loading that exhibits at least one spring operated in the linear elastic region and/or at least one weight (3) as power source, where the force pressurization body exhibits a three dimensional agility relative to the power source, and the device is highly temperature resistant and is operated at an ambient temperature of at least 900[deg] C, preferably at least 1250[deg] C.</p> |
