General Electric Technology Gmbh

Ansaldo Energia IP UK Limited

Alstom Technology Limited

Thomas Opderbecke

Thomas Etter

Guenter Ambrosy

Alexey Drozdov

Daniel Beckel

Sanjiv Kumar Mishra

Kornelia Weidemann

Simone Hoevel

Joergen Ferber

Simon Baldasera

Simon Malcolm Potter

Markus Noe

Dmitry Yakushkov

Sanjiv Mishra

Simon Potter

A rotor has a rotor core with protruding fingers defining slots for conductors and support blocks at the axial ends of the fingers fixed by screws. The fingers have holes for housing the screws. The method for repairing the rotor includes removing the screws and support blocks, drilling the holes to increase the diameter thereof, providing plugs into the holes.

Method for repairing a rotor

A method for post-weld heat treatment of a without a filler material welded high strength component made of a gamma prime (&#x3b3;') strengthened superalloy can include providing the welded component, heating the welded component by applying a rapid heating-up rate in the range of 20&#xb0; C./min to 40&#xb0; C./min during the entire temperature range from room temperature (RT) up to a temperature Tof at least 1000&#xb0; C., holding the welded component at Tand then heating the component by applying a slow heating-up rate of about 5&#xb0; C./min to a final temperature T, then holding the welded component at Tfor a time tsufficient for at least partially dissolving the gamma prime phase in a weld of the welded component and also in a base material surrounding the weld, and cooling the component with a cooling rate that is greater than or equal to about 20&#xb0; C./min.

Method for post-weld heat treatment of welded components made of gamma prime strengthened superalloys

Growing community of inventors

Untersiggenthal, Switzerland

Thomas Opderbecke