Method for repairing a steam turbine or generator rotor

Patent · Tue Jan 06 00:00:00 EST 1987

OSTI ID:6902477

Clark, R E; Amos, D R

A method is described for repairing low alloy steel steam turbine or generator rotors, the method comprising: a. machining mating attachments on a replacement end and a remaining portion of the original rotor; b. mating the replacement end and the original rotor; c. welding the replacement end to the original rotor by narrow-gap gas metal arc or submerged arc welding up to a depth of 1/2-2 inches from the rotor surface; d. gas tungsten arc welding the remaining 1/2-2 inches; e. boring out the mating attachment and at least the inside 1/4 inch of the welding; and f. inspecting the bore.

• Assignee: Westinghouse Electric Corp., Pittsburgh, PA
• Patent Number(s): US 4633554
• Application Number: TRN: 87-006922
• OSTI ID: 6902477
• Resource Relation: Patent File Date: Filed date 8 Aug 1985
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
36 MATERIALS SCIENCE
ROTORS
GAS METAL-ARC WELDING
GAS TUNGSTEN-ARC WELDING
REPAIR
SUBMERGED ARC WELDING
STEAM GENERATORS
STEAM TURBINES
STEELS
INSPECTION
MACHINING
ALLOYS
ARC WELDING
BOILERS
FABRICATION
IRON ALLOYS
IRON BASE ALLOYS
JOINING
MACHINERY
TURBINES
TURBOMACHINERY
VAPOR GENERATORS
WELDING
421000* - Engineering- Combustion Systems
360101 - Metals & Alloys- Preparation & Fabrication