Angle steel can be composed of different stress components according to different needs. Because Angle steel has good weldability, plastic deformation performance and certain mechanical strength in application, it is widely used in metal components, engineering structures and various building structures. But due to improper processing, Angle steel often crack, so how to determine the Angle steel surface crack?
Angle steel surface crack detection is difficult to determine the Angle steel edge irregular shape and the existence of excessive arc, with ultrasonic probe detection of the detection direction is single, it is easy to miss, with oblique probe detection, because of the formation of end Angle reflection, it is difficult to determine the defect.
The direction of the crack is perpendicular to the length direction of the Angle steel, and the direction of the crack is parallel to the length direction of the Angle steel, and the crack is long and thin, both ends are sharp, so the crack is produced in the rolling process, after bending crack diffusion, crack characteristics are more obvious. There are equal angles and unequal angles. Equal angles are of equal width on both sides. Specifications are expressed in mm side width x side width x side thickness.
