PROBLEM TO BE SOLVED: To provide a cold spray nozzle having a prolonged life capable of preventing metal particles from sticking to the inside thereof.;SOLUTION: A cold spray device 1 comprised of a heat conductive cylindrical nozzle body 11 made from stainless steel is disclosed. One end 11a of the nozzle body 11 is attached to an ejection port 1a of the cold spray device 1. A cooler 12 is coaxially attached to the nozzle body 11 protruding from the ejection port 1a of the cold spray device 1 in a manner covering the outer face of the nozzle body 11. The cooler 12 is constructed in such a manner that cooling water introduced from its water feed port 12b into its water path 12a is allowed to circulate therewithin and to flow out of its water discharge port 12c. The cooler 12 cools the inner face of the nozzle body 11 by uniformly cooling the outer face thereof.;COPYRIGHT: (C)2009,JPO&INPIT
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