Procesprincippet og karakteristika ved ultralydsafbrydelsesdetektion

The ultrasonic flaw detection process is a non-destructive flaw detection technology based on the acoustic principle. It uses the propagation characteristics of ultrasonic waves to detect internal defects in materials. Ultrasonic waves are high-frequency sound waves with strong directional, high penetration ability and concentrated energy. When propagating in materials, they can sensitively reflect structural changes in materials. When the ultrasonic beam encounters defects inside the material (such as cracks, inclusions, pores, etc.), reflection, scattering or diffraction will occur at the defects. After these abnormal signals are received and converted into electrical signals, they are Amplificeret, forarbejdet og analyseret af fejldetektoren for at opnå intern defektdetektion, placering og evaluering af materialer . Den ultralyds fejldetektionsproces har mange betydelige træk . én er, at det er ekstremt følsomt og kan påvise subtile mangler, endda nogle subtile revner, der ikke let opfattes af det nøgne øje .}} optagelse af inspektion af skinn example, the ultrasonic flaw detector can detect tiny cracks with a diameter of only 0.1mm inside the axle. Second, ultrasonic testing is a non-destructive testing method that does not cause any physical damage to the material being tested. It is particularly important for important parts that maintain the integrity of the material. In addition, ultrasonic testing has the advantages of high detection speed, simple operation and low cost, and is widely used in industrial production, aerospace and nuclear industries. The selection of probes, the use of coupling agents and the setting of detection parameters during ultrasonic testing will affect the detection results. Therefore, in the process of ultrasonic testing, it is necessary to consider Egenskaberne for det materiale, der testes, typen af defekter og detekteringskravene, og vælg passende parametre og metoder . På samme tid kræves testpersonalet for at opnå kvalifikationscertifikater og jobcertifikater, der er udstedt ved relevant enheder og modtage faglig uddannelse for at sikre, at de dygtigt kan bruge ultrasonisk testning og forbedre nøjagtigheden og pålideligheden af fejlpåvisning.