| 摘要 |
PROBLEM TO BE SOLVED: To provide a water nozzle inhibiting metal contamination of a target to be sprayed. SOLUTION: The water nozzle 1 for passing water pressurized behind through an orifice hole 5a, accelerating it and spraying it forward is provided with: a nozzle orifice 5 made of monocrystal diamond and having the orifice hole 5a formed therein; and a nozzle body 3 for holding the nozzle orifice 5. At least a part of the nozzle body 3 in contact with the water pressurized behind is made of resin. COPYRIGHT: (C)2009,JPO&INPIT
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