penetrantprøvning
Penetrantprøvning, also known as dye penetrant inspection (DPI) or liquid penetrant testing (LPT), is a widely used non-destructive testing (NDT) method for detecting surface-breaking defects in materials. This technique is applicable to a wide range of non-porous materials, including metals, plastics, and ceramics. The principle behind penetrant testing relies on capillary action, where a liquid with low surface tension is drawn into and held within surface flaws.
The process typically involves several key steps. First, the surface to be inspected is thoroughly cleaned
Penetrant testing is effective in revealing defects such as cracks, porosity, laps, and seams that are open