Digital Radiography For Inspection Of Welded Joints For Industrial Pipelines And Building Constructions

Abstract

When installing bearing metal structures as well as when constructing technological pipelines in the oil and gas industry, welded joints are widely used. Non-destructive testing methods are used to control the quality of such joints. To date, one of the most popular methods of control is radiographic. In recent times, there is a gradual transition to modern technologies of radiographic control – digital radiography. The use of digital radiography makes it possible to immediately obtain a digital image of the welded joint that provides the possibility of better and faster decoding of images and detection of existing defects. General information on digital radiography, its features and advantages compared to analog (works in the field, the lack of use of "wet" processes and chemical reagents, repeated use of film, etc.) is presented. The sequence of operations of the radiographic control method is also presented. The economic efficiency of digital radiography in comparison with analog radiography is shown. It is concluded that the development of digital radiography in Russia requires the development of national standards that will cover the full range of problems arising when applying this type of control, as well as to establish quality training and education of specialists capable of working with specialized equipment.