Patent ID: 9605563
Date: 2017-03-28
CPC Classifications: B23K,B23P,F01D,F05D,Y10T

Claim:
1. A method of mounting a guide vane stage including an inner shroud and an outer shroud that are coaxial, being interconnected by substantially radial airfoils, the method comprising: a) engaging radially outer ends of the airfoils in orifices in the outer shroud, and engaging radially inner ends of the airfoils with clearance gaps in orifices in the inner shroud; b) fastening or welding the outer ends of the airfoils to the outer shroud; c) holding plates bearing against an outer surface of the inner shroud so that the plates cover the clearance gaps formed between the orifices in the inner shroud and the airfoils at least partially and in leaktight manner; the plates being positioned circumferentially between the airfoils; d) applying a sealing resin to an inner surface of the inner shroud such that the resin fills the gaps and the radially inner ends of the airfoils are embedded in the resin; and e) removing the plates after applying the sealing resin.