The ultrasonic probe to be completed by the power of sound energy between each other and transform the physical characteristics of ultrasonic waves in an elastic medium to convey when the pipe ultrasonic flaw detection principle foundation.
The ultrasonic probe to be completed by the power of sound energy between each other and transform the physical characteristics of ultrasonic waves in an elastic medium to convey when the carbon steel pipe ultrasonic flaw detection principle foundation. Experiencing disadvantage emitted ultrasonic beam directed to convey in a tube, reflecting both the occurrence of waves and wave attenuation occurs. After signal processing flaw detector, such as the selection reflection detection, echo signal can be obtained shortcomings, such as the use penetration testing method can be achieved by virtue of shortcomings signal attenuation through the waves. Both can give quantitative shortcomings indicated by the instrument.
Using the principle of electromagnetic induction or piezoelectric effect can stimulate the inner tube is not the same type of ultrasound. Thus, the piezoelectric ultrasonic and electromagnetic ultrasonic carbon steel pipe can be used for ultrasonic inspection. But EMAT only for ferromagnetic materials.
Selection of shear (or plate wave) reflection method (or penetration method) in the probe and the pipe relative movement active state inspection, as long as the special large-diameter pipe inspection technology can be conducted. Should take the initiative to check the time or skill to ensure that the beam tube full scan appearance.
Such inspection shortcomings longitudinal beam conveyed in the tube wall along the circumferential direction; disadvantage when checking lateral beam conveyed in the wall along the tube axis. Longitudinal and transverse defects inspection should be carried out in two opposite directions of the tube.When the demand side did not make identification lateral side only drawback for inspection longitudinal shortcomings. Endorsed by both sides to negotiate, longitudinal and transverse defects inspection can be carried out only in one direction of the mild steel pipe.Choose a good coupling active or craft examining them, and not detract from the appearance of the pipe coupling medium.
Difference of PSL1 and PSL2(API 5L)
The API 5L has two standards, PSL1 and PSL2, which are very different from each other. I'll talk more about the differences between PSL1 and PSL2.
Production Process of Pipe Fitting
There are many kinds of processing methods for pipe fittings.
The Future of Steel Pipe Development
The future of steel pipe development is looking promising, according to expert analysis and data. The price of carbon steel pipe is predicted to bounce back this year, with China leading the way in increasing steel consumption demands. This is due to a series of government initiatives aimed at stimulating domestic demand, including the construction of affordable housing and infrastructure projects. The demand for structural steel pipe is also on the rise, thanks to state investment in housing and engineering projects. With private investment projects also gaining popularity, the steel pipe market is set to thrive in 2017.
