dye penetrant inspection


dye penetrant inspection
a method for detecting surface porosity or cracks in metal. The part to be inspected is cleaned and coated with a dye which penetrates any flaws that may be present. The surface is wiped clean and coated with a white powder. The powder absorbs the dye held in the defects indicating their location.

Mechanics glossary. 2013.

Look at other dictionaries:

  • Dye penetrant inspection — 1. Section of material with a surface breaking crack that is not visible to the naked eye. 2. Penetrant is applied to the surface. 3. Excess penetrant is removed. 4. Developer is applied, rendering the crack visible. Dye penetrant inspection… …   Wikipedia

  • dye penetrant inspection — A technique of nondestructive testing to detect surface defects in metal or plastic components. The component is soaked in a penetrating liquid and then washed to remove all penetrant from its surface. The surface is then covered with a… …   Aviation dictionary

  • inspection — dye penetrant inspection ultrasonic inspection …   Mechanics glossary

  • Inspection — Maintenance check of electronic equipment on a U.S. Navy aircraft. An inspection is, most generally, an organized examination or formal evaluation exercise. In engineering activities inspection involves the measurements, tests, and gauges applied …   Wikipedia

  • Penetrant — A penetrant is a substance that penetrates or assists some other material to penetrate another substance or object.Penetrant can refer to: * Penetrant (biochemical), a chemical that helps another chemical to invade a living organism in order to… …   Wikipedia

  • Nondestructive testing — or Non destructive testing (NDT) is a wide group of analysis techniques used in science and industry to evaluate the properties of a material, component or system without causing damage.[1] The terms Nondestructive examination (NDE),… …   Wikipedia

  • blink zyglo — A nondestructive dye penetrant inspection technique to confirm the presence of cracks in materials that are subject to vibrations. The surface of the part is coated with a penetrant in which a visible, or fluorescent, dye is dissolved or… …   Aviation dictionary

  • dwell time — The period for which a dye penetrant should remain on the surface of the component being inspected for any surface defect by dye penentrant inspection method. The dwell time is a direct function of the size of the surface defect and the… …   Aviation dictionary

  • Merbromin — Merbromin …   Wikipedia

  • Forging — This article is about the metalworking process. For specific hot forging hearth, see forge. For the act of counterfeiting, see forgery. Hot metal ingot being loaded into a hammer forge Forging is a manufacturing process involving the shaping of… …   Wikipedia


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