X-ray real-time imaging technology

as a nondestructive flaw detection technique for detecting internaldefects in welding products

has been widely used in aviation

aerospace

boilers

pressure vessels

automobile manu-facturing and many other industries. Many metal welding shell manufacturers at home and abroad have already usedthis technology to test the welding quality of products. In this paper

X-ray real-time imaging method is comparedwith the traditional exposure film method and chemical imaging method. The technical advantages of this method aredefined

and the reliability and practicability are confirmed. This paper introduces the technology principle and sys-tem of X digital X-ray real-time imaging nondestructive testing system for GIS welding of the shell

through a lot oftesting for GIS welding seam according to the characteristics of various kinds of shell

the internal defects of GISshell weld

weld defects will be summarized into six categories:porosity

slag inclusion

incomplete penetration

in-complete fusion crack and loose. Combined with practical work to solve the problem of using the results of the summa-ry

this technology improves the detection efficiency

expand the detection range and improve the accuracy and safe-ty of weld quality evaluation test

reduce environmental pollution

electronic archives management and the system ofthe detection of defects on the characteristics of the database

not only can filing for the day after the show

at thesame time characteristic database establishment enriches the defect characteristics

the practical application of this technique introduces the experience technology into the enterprise of high voltage switch NDT GIS shell.