What’s the difference between ultrasonic testing and X-ray testing for high pressure pipeline

The instrument which uses the method of ultrasonic testing is called ultrasonic flaw detector. Its principle is: when the ultrasonic wave propagates in the tested material, the acoustic characteristics of the material and the change of the internal structure will have a certain influence on the propagation of the ultrasonic wave. The technology of understanding the material performance and structure change through the detection of the affected degree and condition of the ultrasonic wave is called ultrasonic detection. Ultrasonic testing methods usually include penetration method, pulse reflection method, tandem method and so on. With strong penetration ability, the detection depth can reach several meters.

Ultrasonic nondestructive testing for large diameter 90 degree elbow welds

Ultrasonic nondestructive testing for large diameter 90 degree elbow welds

X-ray testing can penetrate the matter that the general visible light can’t. Its penetration ability is related to the wavelength of the degree X-ray and the density and thickness of the penetrated material. The shorter the wavelength of X-ray, the greater the penetration; the lower the density, the thinner the known thickness, the easier the X-ray penetration. In practical work, the penetrability of X-ray (i.e. the quality of X-ray) is determined by the voltage of the bulb (kV), and the product of the current (MA) passing through X-ray and the channel time in unit time represents the amount of X-ray. The maximum thickness that can be measured is related to the X-ray intensity. Generally, the metal thickness is less than 0.3m.

X ray test for large size pipe fitting

X ray test for large size pipe fitting

Haihao Group is one of the biggest pipeline manufacturers in China,our products contain steel pipes,butt welding or forged pipe fittings and flanges.Our facilities include many kinds of manufacturing equipment,processing line and the quality control devices,which make sure our products in a high quality level.If you want to know more about our products,please feel free to contact us,email:sales@haihaogroup.com

PREV
NEXT

RELATED POSTS