Welded Curtis Wheel
Welded Curtis Wheel
(OP)
Hi everybody!
I have a problem.
An Welded Curtis Wheel- from an 8MW Steam turbine.
I have to reblade integraly this stage. But I don't have the right technology(procedure)for the welding. A particularity of this stage are the holes from the rooth of the blade, right between rooth of the blades.
1. Can someone give me an explanation regarding this holes?
2. A brief description of the welding procedures for welded blade on disk will be wery good.Or at list an web adress.
Thank you!
I have a problem.
An Welded Curtis Wheel- from an 8MW Steam turbine.
I have to reblade integraly this stage. But I don't have the right technology(procedure)for the welding. A particularity of this stage are the holes from the rooth of the blade, right between rooth of the blades.
1. Can someone give me an explanation regarding this holes?
2. A brief description of the welding procedures for welded blade on disk will be wery good.Or at list an web adress.
Thank you!





RE: Welded Curtis Wheel
Regarding welding, I would contact three (3) turbine OEM's that offer rotor welding capability (GE, W and ABB), and seek repair proposals from them. I have dealt with all three of these vendors on turbine rotor welding, and they can work with you on this project. This is a rather complex project and trying to obtain this information on the internet will not be successful.
RE: Welded Curtis Wheel
But one of the major problem.... is:
The firm I work for is in charge with the scope of work, and...
I have just some global ideas about welding this blades.
By the way, recently I found some materials, and it is possible that the hole is for stress release.
I am steel waiting for some clarification.
Thanks!
RE: Welded Curtis Wheel
RE: Welded Curtis Wheel
2) Welding rotating components - Besides the OEMs, there are a lot of spin off service shops in the US that not only duplicate the OEMs, but have developed there own expertise