Rules for determining the detection of industrial endoscopy

Date: 2019/7/11

With the development of industry and the improvement of scientific research technology, industrial endoscope is more and more widely used in industry. As a non-destructive testing tool, it plays an important role.

We need to correctly use the industrial endoscope so as to detect the existing problems, in order to reflect the value of the industrial endoscope to us.

Yateks, a non-destructive testing expert, share with you some of the rules of industrial endoscopy testing.

(1)Crack.

When the light beam irradiates the surface of the detected object, black or bright lines are observed, and when the lines have irregular edges at a certain magnification, they are determined to be cracks.

When the crack is wide, the measuring influence line of the measurable probe will bend.

(2) Peeling.

When the beam irradiates in parallel, it is observed that there is a shadow behind the protruding part, and when the beam irradiation angle is changed, it is observed that there is an obvious dividing line between the protruding part of the surface and the detected object, which is judged to be peeling.

(3) Drawing wires and scratches.

Under the irradiation of light beam, it is observed that there is a regular continuous long line on the surface, which is determined to be drawing wire.

(4) The pit bulge.

When the beam irradiates at a certain angle, it is connected with the boundary of the object around it, and there is no dividing line.

There are shadows near the light source and bright shadows far away from the light source, which is a pit.

When the beam irradiates at a certain angle, it is connected with the boundary of the object around it, and there is no dividing line.

The protruding part has a bright shadow, and the shadow behind it is a pit.

When the pit is deep or the bulge is high, the measuring line of the measuring probe will bend.

(5) Spots.

When the light beam is irradiated, it is observed that the smooth non-concave and convex surface is speckled, which is different from the color of the surrounding object.

(6) Corrosion.

Under the irradiation of the light beam, it is observed that the massive and punctate non-smooth surface is slightly uneven at a certain magnification.

(7) Not welded through.

It is observed that there is an obvious dividing line between molten metal and base metal and weld layer.

(8) Welding leakage.

When the beam is irradiated at a certain angle, it is observed that the welding leakage is connected to the molten metal and there is no dividing line.

(9) Surplus.

When the beam is irradiated at any angle, the object outside the structure which is different from the color and brightness of the object around it is redundant.

(10) Assembly defects.

During the detection, the structural phenomena which do not conform to the technical conditions of the pattern are observed.

(11) Size measurement.

When required, the shape and position dimensions can be measured with a measuring probe.

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