| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid droplet injection nozzle excellent in workability, wherein droplets with high energy can be injected in a wide range, a big damage can be given to a structural body injected with the droplets in a short time, and therefore a cleaning work for removing rust and foreign materials on the surface of a metallic material, a chipping work for removing a surface fouled paint, a concrete fouled layer and an abrasion layer of a grindstone surface, an anchor-pattern forming for improving an adhesion property of the surface of the metallic material, an inorganic material, etc. and a paint, a large-area surface modifying treatment for removal of an oxidation film of a welding part, etc., a cutting work of concrete and stone materials, etc. and the like can be carried out in a short time. SOLUTION: The droplet injection nozzle has a liquid chamber to which a high-pressure liquid is supplied, a plurality of orifice opening parts arranged or formed at a lower-side end part of the liquid chamber, an injection opening arranged or formed at a lower side of the orifice opening parts, and a dividing wall dividing the liquid chamber arranged or formed at the lower-side end part of the liquid chamber between the adjacent orifice opening parts. COPYRIGHT: (C)2006,JPO&NCIPI
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