Penetration testing technology penetration testing

Permeation detection technology Penetrant inspection is a special inspection method. Based on the capillary principle, the use of the strong permeability of colored dyes or fluorescent dyes to display the traces of defects is very versatile. It can be used for any material other than loose porous materials. Can detect the surface of the obvious open defect material, which determines its application in the field of steel structure is subject to certain restrictions, generally in the engineering, only in a number of special requirements non-ferromagnetic material testing has application.

The engineering example corroborates that for a steel structure project, the inspection work is divided into beam and column loops, and the measured flaw length is up to 50,000 meters. The team is required to apply non-destructive testing to make an accurate assessment, and due to time constraints, it is estimated that the workload per person per day is about 3040. Before the flaw detection, the quality of the weld appearance is examined first. According to the specific project requirements, the type of technology is reasonably selected to match the best combination to achieve the best results. For example, laminated defects can be assisted by ultrasonic technology. Surface defects can be caused by magnetic flux leakage, internal defects Considering that such microscopic flaws can be detected by radiation, the advantage of ultrasonic technology can be exerted. The weld seam of the dark beam web beam is based on the characteristics of the magnetic flux leakage detection technology. Through the above technical combination, the detection accuracy and engineering progress can be guaranteed.

Analyze the common steel structure inspection technology, we can see that each technology has its own uniqueness, but there are also all aspects of the determination of steel structure detection can not be limited to a certain detection method, need to be based on the application of various technologies, reasonable characteristics Choice, combination of best methods, correct defect assessment In addition, high-end technologies such as acoustic emission phased arrays have also been applied in recent years due to the wide range of applications of steel structures, and the associated detection technology is a booming industry to properly test The advantages of technology can provide strong support for the development of construction engineering machinery engineering. We also look forward to the advent of various new nondestructive testing technologies.