Pressure vessels and pipelines, as key equipment for transporting and storing high-risk media in industries such as energy and chemical engineering, their safety is closely related to life, property and environmental protection. X-ray flaw detection is one of the most core non-destructive testing technologies to ensure the manufacturing and in-service safety of these pressure-bearing equipment.

During the manufacturing stage, it is mainly used for comprehensive inspection of longitudinal/circumferential welds of container cylinders, fillet welds of nozzles, etc. Through X-ray images, it is possible to clearly identify whether there are dangerous defects such as incomplete fusion, incomplete penetration, cracks, and strip-shaped slag inclusions inside the weld seam. These defects, under the periodic loading of pressure and the corrosive effect of the medium, are highly likely to become the source of crack initiation and propagation, eventually leading to equipment leakage or explosion.

X-ray flaw detection is also indispensable in the in-service inspection of equipment. For pipelines that have been operating in corrosive environments for many years, the thinning of wall thickness, internal corrosion pits and stress corrosion cracks can be detected and evaluated from the outside without the need for cutting or shutdown. This provides a direct basis for predicting the remaining lifespan of equipment and formulating scientific maintenance and replacement strategies. By conducting regular X-ray "check-ups" for these "industrial arteries", the occurrence of serious accidents can be effectively prevented, achieving a leap in safety management from "post-event remediation" to "pre-event prevention", and the economic and social benefits are huge.