Judgment rules for industrial Borehole Pipe Inspection

With the development of industry and the improvement of scientific research technology, industrial Borehole Pipe Inspection is more and more widely used in industry, and it plays an important role as a non-destructive testing tool. And we need to use it correctly, correct detection and determination of the problems, in order to reflect it to bring us value.　

(1) Cracks. When the light beam irradiates the surface of the object to be inspected, black or bright lines are observed, and the lines have irregular edges at a certain magnification, it is judged as a crack. When the crack is wide, the measuring influence line of the measurable probe will bend.

(2) peeling. When the beam is irradiated in parallel, a shadow is observed behind the convex part; when the beam irradiation angle is changed, a clear boundary between the convex part of the surface and the surrounding object to be detected is observed, and it is judged as peeling.

(3) Pull lines and scratches. Under the beam irradiation, a relatively regular continuous long line was observed on the surface, it was judged as a pull line.　

(4) The pits are raised. When the light beam is irradiated at a certain angle, it is connected with the boundary of the surrounding object without boundary. The part near the light source has a shadow, and the part far away from the light source has a bright shadow, which is a pit. When the light beam is irradiated at a certain angle, it is connected with the boundary of the surrounding object without boundary. The raised part has bright shadows, and the back shadows are pits. When the pit is deeper or the protrusion is higher, the measuring line of the measurable probe will bend.

(5) spot. When the light beam is irradiated, a smooth, uneven surface with a different color from the surrounding objects is observed as spots.

(6) corrosion. Under the irradiation of the light beam, a blocky, dot-like matte surface is observed, and the slight unevenness is corrosion at a certain magnification.

(7) Not penetrated. Obvious lines of demarcation between molten metal and base metal and weld layer are observed.

(8) Welding leakage. When the beam is irradiated at a certain angle, it is a solder leak when it is observed that it is connected to the molten metal and has no boundary line.

(9) Superfluous. When the beam is irradiated at any angle, objects other than structures that differ from the surrounding basic objects in color and brightness are redundant.

(10) Borehole Pipe Inspection defects. Structural phenomena that did not meet the technical conditions of the pattern were observed during the inspection.

(11) Size measurement. The measuring probe can be used to measure the shape and position when required.

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