Ultrasonic nondestructive testing, ultrasonic flaw detection, ultrasonic nondestructive testing, ultrasonic nondestructive testing, ultrasonic nondestructive testing UT
Tianjin Rong Da Testing Co., Ltd. contact: Wang Jingfu
Cell phone: 13102238283 QQ:3144667033
Telephone: 022-23892103
Electromagnetic ultrasound is a new technology in the field of nondestructive testing, which uses electromagnetic coupling method to drive and receive ultrasonic wave. Compared with the traditional ultrasonic testing technology, it has the advantages of high precision, no need of coupling agent, non contact, high temperature detection and easy to excite all kinds of ultrasonic wave shape. In industrial applications, electromagnetic ultrasound is getting more and more attention and attention.
As a new nondestructive testing technology, electromagnetic ultrasonic testing has been applied in the field of railway steel rail detection, composite material detection and so on. A factory to build a large bar production line nondestructive testing process, the whole line is: on the internal material, straightening, blasting, chamfering, testing, testing, sorting, collecting surface binding, lifting line. Electromagnetic ultrasonic testing technology is used in the internal testing of bars,
Brief introduction of equipment structure and function
The basic principle of electromagnetic ultrasonic testing
The inner part of the bar is divided into the core area and the sub surface area by the electromagnetic ultrasonic testing. The core defects are detected by the shear wave probe SSF, and the sub surface defects are detected by the CF. Shear wave probe CF used to shape the coil, when the magnet magnetic lines perpendicular to the surface of the bar, eddy current force direction is parallel to the surface of the bar, and the particle of the ultrasonic shear wave force perpendicular to the bar, core defect detection. Shear wave probe SSF by serpentine coil, current directions of two adjacent part winding opposite magnetic field lines perpendicular to the metal surface, inside the bar will have a transverse wave, to detect bar sub surface defects. The bar surface produces electromagnetic ultrasonic propagation bar internal flaw reflection wave form, encounter defects, and bar bottom reflection wave is the electromagnetic ultrasonic probe and capture device with A scanning in the echo waveform is displayed, which can analyze the size and location of defects in the bar