Non-destructive testing Refers to testing for defects. or abnormality of the workpiece welding of the workpiece without destroy for testing Does not cause the work piece to change shape, size or performance, that is, it is an inspection. Physical properties such as light, heat, radiation, sound waves, electricity, or magnetism of an object. which will change depending on the abnormality of the internal structure or existing defects
Non-destructive testing is primarily intended for quality control of products, especially those that have high production costs and produce piece by piece as ordered It is also used to detect defects of general construction equipment and descent both before use and during use Work and inspection during factory shutdown to assess service life
It is an inspection to find defects in the material such as cracks or imperfections in the shape of the workpiece. occurring on the skin slightly under the skin and in the material such as
– Magnetic particle inspection checks for minor surface and subsurface defects.
– X-ray inspection can show the defective image on the photographic film and can detect the defect in the material.
– Ultrasonic inspection can detect defects in the material just like radiographs.
– visual inspection It’s a convenient check. By using the basic ability to inspect by yourself and does not require special equipment and the expertise of the inspectors.
