Liquid Penetrant Testing (LPT)
LPI is widely applied as low cost inspection method used to locate surface breaking defects in all non-ferrous materials and ferrous materials; although for ferrous components magnetic particle inspection is often used. We offer on-site liquid penetrant testing services using contrast or fluorescent penetrant for highly sensitive inspection. We offer on-site liquid penetrant inspection services. For detecting of surface breaking cracks in non-magnetic materials, we use both color contrast and fluorescent penetrant for highly sensitive inspection.
LPI is used to detect casting, forging & welding surface defects such as hairline cracks, surface porosity, leaks in new products and fatigue cracks on in-service components.
Applications
- It is used to inspect metals for surface defects
- Weld discontinuities open to surface i.e. cracks, porosity and seams
Advantages
- It can be used on a wide variety of materials: ferrous and nonferrous metals and alloys, fired ceramics, powdered-metal products, glass, and some types of organic materials
- Portable, relatively inexpensive equipment
- Expedient inspection results
- Results are easily interpreted
- Requires no electrical energy except for light source
- Indications may be further examined visually
- Adapted to volume processing permitted 100 percent surface inspection
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