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  2. Water jet cutter - Wikipedia

    en.wikipedia.org/wiki/Water_jet_cutter

    In 1956, Carl Johnson of Durox International in Luxembourg developed a method for cutting plastic shapes using a thin stream high-pressure water jet, but those materials, like paper, were soft materials. [4] In 1958, Billie Schwacha of North American Aviation developed a system using ultra-high-pressure liquid to cut hard materials. [5]

  3. Hydrodemolition - Wikipedia

    en.wikipedia.org/wiki/Hydrodemolition

    Robotic Hydrodemolition in Folkestone, UK. Hydrodemolition of concrete exposing the rebar.. Hydrodemolition (also known as hydro demolition, hydroblasting, hydro blasting, hydromilling, waterblasting, and waterjetting) is a concrete removal technique which utilizes high-pressure water, often containing an abrasive material, to remove deteriorated and sound concrete as well as asphalt and grout.

  4. In-water surface cleaning - Wikipedia

    en.wikipedia.org/wiki/In-water_surface_cleaning

    Cavitation water jet – this system uses jets of water containing cavitation voids of water vapour, generated ultrasonically in the nozzle, which develop high localised impact pressures on hard surfaces when the bubbles implode at the surface to be cleaned. This is claimed to do less damage to surface coatings than high pressure jetting, and ...

  5. Pump-jet - Wikipedia

    en.wikipedia.org/wiki/Pump-jet

    A pump-jet, hydrojet, or water jet is a marine system that produces a jet of water for propulsion. The mechanical arrangement may be a ducted propeller ( axial-flow pump ), a centrifugal pump , or a mixed flow pump which is a combination of both centrifugal and axial designs.

  6. Hydraulic mining - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_mining

    A miner using a hydraulic jet to mine for gold in California, from The Century Magazine January 1883. Hydraulic mining is a form of mining that uses high-pressure jets of water to dislodge rock material or move sediment. [1] In the placer mining of gold or tin, the resulting water-sediment slurry is directed through sluice boxes to

  7. Hydraulic intensifier - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_intensifier

    There are two specialized types of hydraulic intensifier used for water jet cutting. The first and most common is the inline hydraulic intensifier. Oscillating hydraulic pistons are used to compress water to the required pressure levels. The water jet system's cutting head restricts the water flow to generate pressure and direct it onto the ...

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