Liquid penetration testing

Duration: 4min 32sec Views: 1540 Submitted: 07.04.2021
Category: Scissoring
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Dye penetrant inspection

Liquid penetrant inspection

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Fourth Edition, Volume 1

Dye Penetrant Testing Penetrant testing is based on the capillary action at defects which are open to the surface, as e. Then, after the successive intermediate cleaning the developer becomes sprayed on. After drying the developer draws the penetrant from the crack and the indication widens.
Liquid penetrant examination is one of the most popular Nondestructive Examination NDE methods in the industry. It is economical, versatile, and requires minimal training when compared to other NDE methods. Liquid penetrant exams check for material flaws open to the surface by flowing very thin liquid into the flaw and then drawing the liquid out with a chalk-like developer.