Method for repairing a steam turbine or generator rotor

Patent · Mon Jan 05 23:00:00 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
• OSTI ID: 6902477
• Country of Publication: United States
• Language: English

Related Subjects

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