Farbstoffpenetrant

Farbstoffpenetrant, also known as dye penetrant, is a liquid dye used in non-destructive testing (NDT) to detect surface-breaking defects in materials. The process involves applying the penetrant to the surface of the material, allowing it to seep into any cracks or defects. After a specified dwell time, the excess penetrant is removed, and a developer is applied. The developer draws out the penetrant from the defects, making them visible under certain lighting conditions, such as black light or white light.

Dye penetrant testing is commonly used in industries such as aerospace, automotive, and manufacturing to inspect components for cracks, porosity, and other surface-breaking defects. It is a simple, cost-effective method that can be performed on a wide range of materials, including metals, plastics, and composites. However, it is limited to detecting only surface-breaking defects and may not be suitable for materials with porous surfaces or those that are highly textured.

The effectiveness of dye penetrant testing depends on several factors, including the type of penetrant used, the dwell time, the surface condition of the material, and the lighting conditions used to inspect the defects. Proper training and certification are required to perform dye penetrant testing accurately and reliably.