Impeller wheels for turbines and mfg process for same

摘要

Impeller wheels for turbine machines, esp. gas or steam turbines, in which blades of ceramic materials are joined integrally to discs of high temp. resistance steel alloys by heating and where intermediate layers containing aluminium (Al) or copper (Cu) or nickel (Ni) are applied to the joining surfaces on the blades or the disc by vacuum soldering, electro-plating or sintering prior to joining.A mfg. process for the above is also claimed.