Film material and cold spray method

Abstract

Provided are: a film material for use in a cold spray device; and a cold spray method, each of the film material and the cold spray method enabling an improvement in rate of adhesion of a spray material to a base material. A film material for use in a cold spray device ( 100 ) and to be sprayed onto a base material ( 20 ) includes a spray material and flux powder.

1 . A film material for use in a cold spray device and to be sprayed onto a base material, comprising:
 a spray material; and   flux powder.   
     
     
         2 . The film material as set forth in  claim 1 , wherein:
 the spray material is nickel;   the flux powder is soldering flux powder; and   the film material comprises the spray material and the flux powder in a volume ratio ranging from  1 : 3  to  3 : 1 .   
     
     
         3 . A cold spray method comprising the steps of:
 mixing a spray material and flux powder so as to produce a film material; and   spraying the film material, together with a carrier gas, onto a base material so as to form a film on the base material.   
     
     
         4 . The cold spray method as set forth in  claim 3 , wherein the carrier gas is set to a temperature of not less than 250° C. and not more than 340° C. 
     
     
         5 . The cold spray method as set forth in  claim 3 , wherein the carrier gas is set to a pressure of not more than 1 Mpa.