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Developers improve flaw visibility by pulling the penetrant retained in a cavity or crack to the surface. Developers are available in dry powder and aqueous forms, depending on the specific penetrant testing method. With the dry powder method, powders are blown onto the part with a bulb, powder applicator or swirl chamber after the application of penetrant to develop or enhance detection of the surface flaw. The fluorescent powder sticks to the penetrant remaining in a flaw or surface crack after cleaning. With aqueous-based developer methods, the powders are suspended in a liquid that is applied to the part by spraying or immersion. Products & Services
X-ray fluorescence spectrometers (XRFs) use a spectroscopic technique that is commonly used with solids, in which X-rays are used to excite a sample and generate secondary X-rays.
NDT supplies and accessories are components, ancillary equipment, standards, and consumable materials used in non-destructive testing (NDT).
Flaw detectors are nondestructive testing instruments that can detect or measure defects in raw materials or finished products.
Non-destructive testing (NDT) equipment is used to detect, inspect, and measure flaws, bond integrity, and other material conditions without permanently altering or destroying the examined part or product.
Powders are finely divided or powdered forms of metals, ceramics, polymers, composites, minerals or other raw materials.
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Topics of Interest
In penetrant testing, penetrant is applied to the part by spray or immersion. The penetrant is pulled into surface flaws by capillary action. Next, a cleaner is used to remove residual penetrant...
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Magnetic particles are fine iron oxide particles with a high permeability (easily magnetized) and low retentivity (ability to stay magnetized). Magnetic particles typically range in size between 0.125...
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Pipeline defect flaw detectors locate surface or sub-surface cracks, inclusions or pores in tubing, piping or pipelines. Pipelines are usually constructed of steel, so NDT techniques suitable for...
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Dry refractories are supplied as a dry powder that is applied and fired in place. Silicate, phosphate or other binders are activated upon firing. Dry refractory powders or aggregates are tamped into...
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Pharmaceutical tablets are given a coating for a number of reasons: • To improve the appearance and aid identification. • To protect the tablet from moisture and other adverse conditions. • To...
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