Non-Destructive Testing Services
NDT Services
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NDE Methods
• Flaw Detection and Evaluation
• Leak Detection
• Location Determination
• Dimensional Measurements
• Structure and Microstructure Characterization
• Estimation of Mechanical and Physical Properties
• Stress (Strain) and Dynamic Response Measurements
• Material Sorting and Chemical Composition Determination.
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Most Common NDT Methods
• Visual
• Liquid Penetrant
• Magnetic
• Ultrasonic
• Eddy Current
• X-ray
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Visual Inspection
• Tools include fiberscopes, bores copes,magnifying glasses and mirrors.
• Portable video inspection unit with zoom allows inspection of large tanks and vessels, railroad tank cars, sewer lines.
• Robotic crawlers permit observation in hazardous or tight areas, such as air ducts, reactors, pipeline.
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Magnetic Particle Inspection
The part is magnetized. Finely milled iron particles coated with a dye pigment are then applied to the specimen. These particles are attracted to magnetic flux leakage fields and will cluster to form an indication directly over the discontinuity.
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Radiography Testing
The radiation used in radiography testing is a higher energy (shorter wavelength) version of the electromagnetic waves that we see as visible light. The radiation can come from an X-ray generator or a radioactive source.
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Film Radiography
• The part is placed between the radiation source and a piece of film.
• The part will stop some of the radiation.
• Thicker and more distance area will stop more of the radiation.
• The film darkness (density) will vary with the amount of radiation reaching the film through the test object.