A new type of forging steel structure piston was introduced. Due to its features of structure and detection requirements, a detecting system used for the detection of its welding surface was designed, which is based on ultrasonic flaw detection technology. The probes posited under the end plane of the piston, facing accurately to the welding faces which contains of the inside ring and the outside ring. Using the longitudinal wave method after being water coupling, the detections can be detected. The detection theory, the hardware composition of the system, the software functions and the detection result were described in detail. The hardware structure of this system is simple and reliable; the software module is clear and stable and has very high flexibility, easy to modify and extend. The system has been applied to the actual production process, the performance has been verified. A nondestructive testing equipment of good performance for the forging steel structure piston’s quality control was provided.
Application of Ultrasonic Flaw Detection Technology in Steel Inspection