Die penetration test
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Dye Penetrant Inspection Procedures
Dye penetrant inspection (DPI), also called liquid penetrate inspection (LPI) or penetrant testing (PT), is a widely applied and low-cost inspection method used to.
22 Aug Some handy tips for beginners who are new to visible dye penetrant testing or NDT pros who want an easy reference guide.
Description:After excess penetrant has been removed, a white developer is applied to the sample. Below are the main steps of Liquid Penetrant Inspection: Water-washable penetrant should be considered here if no other option is available. It is normally sprayed on the surface causing the greases and other dirt particles to disintegrate from the surface. The surface to be tested is to be free from grease, oil, paints, etc. What class of solvent to remove excess Penetrant? For applications where a greater sensitivity to smaller defects is required, the fluorescent penetrant method is preferred.