Mechanized ultrasonic inspection of annular angular welds of weldolet welding (bosses) using phased array technology
The ECHOPLUS company has developed a "Method of mechanized ultrasonic inspection of annular angular welds of weldolet welding (bosses) using phased array technology. MFAR-NG3-P1M/4-V-21" and technological control cards, including certification and calibration of tuning samples for mechanized ultrasonic control (MUZ).
The ECHOPLUS employees have successfully carried out work on mechanized ultrasonic inspection (MUZ) of welded joints (tie-ins) at the liquefied natural gas (LNG) plant. A scanning scheme from a helicopter from the shell side was proposed according to the figure below.
The scanning scheme and the resulting image is an S–scan.
The same colors on the cross section of the welded joint and the S-scan show the main pipe, the veldolet and the deposited metal.
As a result of measurements, complex images with a lot of glare from geometric reflectors are obtained. The overlay of a sketch of this control object on the image, taking into account the single and double reflection, helps to recognize useful signals.
Image of the defect in a helicopter
Examples of detected defects.
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