Liquid penetrant testing

The penetration test (PT) i sone of the most common method of non-destructive testing. IS suitable for searching of superficial defects. Especially PT is used is automotive, aeronautice, petrochemical and power engineering industry. PT method is most common especially in testing of weld joints. This method is easy and finacial profitable. PT method is used for searching superficial defect as cracks, pores, inclusions etc.

The operator can make inspection everywhere acc. to customer requirement thanks to PT transport system independently on any medium as electricity, water etc.

Penetration testing is using penetrant features of liquid. This fluorescent gel, applicated on clean and dry surface, will trapped in those voids will flow back out creating an indication.

When removing the penetrant, the operator must carefully not to remove any penetrant that was flowed into voids. The developer is applied to the surface and given time to allow the penetrant from any voids or fissures creating a visible indication.

Resulting is done acc. to used of type penetrant under the white or ultraviolet light with enough intensity.