Ultrasonic detection method for defects of welding position of through-wall pipe of peak shaving unit
A detection method and a technology of a peak-shaving unit, which are applied in the use of sound waves/ultrasonic waves/infrasonic waves to analyze solids, use sound waves/ultrasonic waves/infrasonic waves for material analysis, and measurement devices, etc. Defect detection and other issues to achieve the effect of improving the fit
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[0027] Include the following steps:
[0028] (1) Use the same batch of original pipes to be inspected to make test blocks;
[0029] (2) Design a detection probe with a radian to improve the fit between the probe and the pipeline;
[0030] (3) Select a suitable couplant to ensure that the ultrasonic energy can pass into the sample to be tested;
[0031] (4) Use the test block to adjust the sensitivity, and measure the AVG curve and DAC curve;
[0032] (5) Select the K1 probe and use the secondary wave to detect the weld and butt weld at the connection between the wall pipe and the casing;
[0033] (6) Select the K2 probe and use the primary wave to detect the weld and butt weld at the connection between the wall pipe and the casing;
[0034] (7) Select the creeping wave probe to detect the butt weld of the wall-piercing pipe, and detect the weld at the joint between the wall-piercing pipe and the casing with defects to determine whether the defect extends to the wall of the ...
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