Application of nondestructive testing X-ray in industry

Date：2022-08-19 16:00:00Views：814

Although X-ray is invisible light, it also has the same characteristics as visible light, such as refraction, reflection, diffraction, scattering and penetration. X-ray transmission inspection can provide photos of defects and relevant dimensions at the tested parts of castings. X-ray detection system is widely used in industrial production. Whether it is casting, welding parts, auto parts or food and drug packaging, X-ray detection system is indispensable. X-ray digital radiography and industrial computed tomography are two important technical branches in the field of industrial nondestructive testing. Dr detection technology is a real-time X-ray digital imaging technology that appeared in the late 1990s. Compared with the film machine which is still widely used at present, the biggest advantage of Dr detection is its strong real-time performance. It can detect the quality defects such as the discontinuity of the workpiece structure medium, the structure shape and the physical density of the medium on-line and in real time. Therefore, Dr detection has a broad development prospect in the field of rapid nondestructive testing.

CT technology was first applied and developed in the 1970s, forming the famous medical CT technology. Later, the United States took the lead in applying it to aerospace, automobile and other industrial departments for testing and analysis, and achieved great results. It formed a new CT technology, i.e. Industrial CT. At the same time, it is considered as a major technological breakthrough in the field of nondestructive testing technology. In 1983, the United States successfully developed the world's first industrial CT equipment. The application of industrial CT technology in parameter analysis, failure research and process improvement has affected almost all industrial fields.

Non destructive testing, which is commonly referred to as non-destructive testing, is a technology for testing materials, parts, equipment defects, chemical and physical parameters by using ray, ultrasonic, infrared, electromagnetic and other technologies in combination with instruments. X-ray nondestructive inspection technology has made great contributions to improving the efficiency and quality of industrial casting production process. Because it can obtain very accurate results in the inspection of various castings and will not damage the inspection object, X-ray inspection technology has developed into one of the most important non-destructive inspection technologies and is the most widely used and mature technology in all inspection methods.

X-ray technology is a good method for detecting volumetric defects such as holes and inclusions in wind turbine blades. It has a certain ability to detect cracks, resin and fiber aggregation perpendicular to the blade surface, and can also measure the fibers in the stack of small thickness wind turbine blades. For defects such as bending, the presence of defects can be directly observed from the inspection image, which is consistent with the inspection of blades before delivery. The X-ray nondestructive testing equipment is more suitable for the fan blades not used in the factory. For the fan blades in use, due to the influence of on-site factors and height restrictions, it is difficult to achieve on-site detection by using X-ray detection method, but using portable X-ray detection equipment still has certain advantages. The volume defect of the fan blade can be detected.

This article can only lead you to have a preliminary understanding of X-ray nondestructive testing, and I hope it will be helpful to you. At the same time, we need to constantly summarize so as to improve our professional skills. We also welcome you to discuss some knowledge points of this article. Our company has professional engineers and industry elite teams, and has three standardized laboratories with an area of more than 1800 square meters. It can undertake various test projects such as electronic component testing and verification, IC authenticity identification, product design and material selection, failure analysis, functional testing, factory incoming material inspection and tape weaving.