| 摘要 |
<p>The invention relates to a method for producing a rotor for a Francis turbine, comprising a rotor base, a rotor ring and rotors. The invention is characterized by the following features: two disk bodies are formed from metal; first one of the two disk bodies has an outside diameter which is equal to or slightly larger than the outside diameter of the rotor base; a second one of the two bodies has an outside diameter whose outside diameter is equal to or slightly larger than the outside diameter of the rotor ring; the two bodies are subjected to such a cutting machining process that the rotor base with blade stubs integrally formed thereon is produced from the one body, and the rotor ring with blade stubs integrally formed thereon is produced from the other body; the blade stubs of the part forming the rotor base and the blade stubs of the part forming the rotor ring are arranged in such away that a blade stub each of the rotor base and a blade stub each of the rotor ring supplement each other to form a complete blade; the two machined parts are associated with each other in such a way that the free ends of the blade stubs integrally formed on the rotor base are opposite of the free ends of the blade stubs integrally formed on the rotor ring; the free ends facing each other are welded together.</p> |
