Quality inspection of LSAW Steel Pipe

Quality inspection method for lsaw steel pipe in this method, physical method is the most commonly used method of examination, physical examination is used to determine the physical phenomena or inspection method.

Magnetic flaw detection can only find the appearance and appearance of magnetic straight seam welded pipe shortcomings, and the shortcomings can only do quantitative analysis, the nature and depth of the shortcomings can only be based on experience to estimate. 

Radiographic testing is the use of ray penetrable material and attenuation in the material properties to detect defects in a method of detection. According to the different rays used in flaw detection, can be divided into X-ray detection, γ-ray detection, high-energy ray detection of three. 

Ultrasound in metal and other homogeneous media, because in the same media interface will occur on the reflection, and thus can be used for internal defects inspection. Ultrasonic can detect any weldment data, any part of the shortcomings, and can more sensitive to find the defect orientation, but the nature of the defect, shape and size of the more difficult to determine. So Longitudinal Welded Pipe Ultrasonic flaw detection and cooperation often used.