Characteristics and scope of application of ultrasonic inspection methods
Non-destructive testing methods include radiographic testing, ultrasonic testing, magnetic particle testing and liquid penetrant testing. Magnetic particle inspection and liquid penetrant inspection are mainly used to detect surface and near-surface defect indications. Radiographic inspection and ultrasonic inspection are mainly used to detect defects within forgings. Radiographic inspection is mainly used to inspect defective displays that have a certain height, while ultrasonic inspection is mainly used to inspect area-type defective displays.
Ultrasonic testing generally refers to the interaction between ultrasonic waves and workpieces, the study of reflected, transmitted and scattered waves, and the detection and characterization of macroscopic defect detection, geometric characteristics measurement, organizational structure and mechanical property changes of the workpiece. Ultrasonic inspection refers to technology that uses ultrasonic waves to evaluate the quality of materials. Ultrasonic inspection has the advantages of strong penetration ability, low inspection cost, fast speed, high sensitivity, accurate defect location, and low requirements on the on-site environment. It is widely used in industrial fields.
