G - Physics – 01 – N
Patent
G - Physics
01
N
73/83
G01N 3/00 (2006.01) G01N 3/08 (2006.01)
Patent
CA 1300926
RUPTURE TESTING METHOD FOR BOILER TUBES Abstract of Disclosure Disclosed is a method of determining the remaining creep life of metallic boiler tubes which comprises the steps of selecting a section of the boiler tube to be tested, inserting two segments into the tube section, which segments together form a disc having an outside diameter slightly less than the inside diameter of the tube section; exerting two oppositely directed forces on the segments to separate the segments against the wall of the tube section, the forces being selected to simulate the hoop stress applied to the tube section due to internal pressure; and maintaining the application of the oppositely directed forces until the tube section ruptures, wherein the steps are performed at a temperature above the normal service temperature of the tube and the remaining life of the tube is estimated by comparing the time to rupture with predetermined data based on the normal service temperature.
532216
Finlayson & Singlehurst
Foster Wheeler Development Corporation
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