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  2. Spark testing - Wikipedia

    en.wikipedia.org/wiki/Spark_testing

    Spark testing is a method of determining the general classification of ferrous materials. It normally entails taking a piece of metal, usually scrap, and applying it to a grinding wheel in order to observe the sparks emitted. [ 1 ]

  3. Electrical discharge machining - Wikipedia

    en.wikipedia.org/wiki/Electrical_discharge_machining

    Electrical discharge machining (EDM), also known as spark machining, spark eroding, die sinking, wire burning or wire erosion, is a metal fabrication process whereby a desired shape is obtained by using electrical discharges (sparks). [1]

  4. Spark extinguishing system - Wikipedia

    en.wikipedia.org/wiki/Spark_Extinguishing_System

    Spark detectors and extinguishing device must be arranged in a certain distance to ensure that the detected ignition source can be extinguished reliably. This distance is called quenched spark gap and is calculated based on the transport speed of the material and the system-related delay time.

  5. Spark gap - Wikipedia

    en.wikipedia.org/wiki/Spark_gap

    A spark plug.The spark gap is at the bottom. A spark plug uses a spark gap to initiate combustion.The heat of the ionization trail, but more importantly, UV radiation and hot free electrons (both cause the formation of reactive free radicals) [citation needed] ignite a fuel-air mixture inside an internal combustion engine, or a burner in a furnace, oven, or stove.

  6. Dye penetrant inspection - Wikipedia

    en.wikipedia.org/wiki/Dye_penetrant_inspection

    Dye penetrant inspection (DP), also called liquid penetrate inspection (LPI) or penetrant testing (PT), is a widely applied and low-cost inspection method used to check surface-breaking defects in all non-porous materials (metals, plastics, or ceramics).

  7. Spark (fire) - Wikipedia

    en.wikipedia.org/wiki/Spark_(fire)

    Sparks from a pyrotechnic sparkler.. In pyrotechnics, charcoal, iron filings, aluminum, titanium and metal alloys such as magnalium may be used to create sparks. [2] The quantity and style of sparks produced depends on the composition and pyrophoricity of the metal and can be used to identify the type of metal by spark testing.

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  9. Spark plug - Wikipedia

    en.wikipedia.org/wiki/Spark_plug

    Spark plug with single side electrode An electric spark on the spark plug. A spark plug (sometimes, in British English, a sparking plug, [1] and, colloquially, a plug) is a device for delivering electric current from an ignition system to the combustion chamber of a spark-ignition engine to ignite the compressed fuel/air mixture by an electric spark, while containing combustion pressure within ...

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