Ultrasonic phased array flaw detector for detecting friction stir welding technology scheme

As an important branch of ultrasonic testing, phased array ultrasonic testing technology has a development history of more than 40 years The concept of phased array originated from military phased array radar. Due to the complexity of the detection system and high equipment prices, the application of phased array detection technology was initially limited to medical use In recent years, with the development of piezoelectric composite materials, microfabrication, microelectronics and other technologies, phased array ultrasonic testing technology has made breakthrough progress in the field of industrial non-destructive testing, especially in aerospace, pipeline circumferential welds and nuclear power plants, such as thin aluminum plate stir friction welding seams and the detection of insulation plates for nuclear power plant main pumps