| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a powder scattering apparatus capable of performing uniform scattering by reliably scattering powder even when the powder easily forms a lump. <P>SOLUTION: This powder scattering apparatus is provided with a chamber the lower surface of which is opened, a powder supply port which is opened on the upper part of the chamber, a nozzle for stirring which jets stirring gas toward the upper side on the lower part of the chamber, and a nozzle for scattering which jets the gas in the direction of intersecting with a falling path of the powder supplied from the powder supply port on a position higher than the nozzle for stirring. A curved guide surface which is made concave with respect to the central part of the chamber is desirably disposed on the chamber inner surface part opposite to the jetting end of the nozzle for scattering. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
