| 摘要 |
<p>The device according to the invention makes it possible to spray pulverulent substances of very fine particle size and is noteworthy in that it comprises a reservoir 1 receiving a layer of fluidised pulverulent substance 3 distributed over an air diffuser 2, the said substance being sucked up by an associated means with a view to discharging it. The device finds numerous applications, for example for surface treatments, in particular by abrasion using sandblasting, for prestressing by peening (spraying) with steel balls or glass balls, and for discharging and spraying all pulverulent substances having fine particle size. <IMAGE></p> |
