Verfahren und Vorrichtung zur Beschichtung der Innenfläche hohler zylindrischer Gegenstände.
摘要
<p>A method and apparatus for spraying a solid particulate powder onto the interior surface of tubular articles (3) by intermittently pumping the powder from a fluidized bed of powder through a powder supply line containing an intermittently operated venturi pump and air amplifier, as well as a pair of constantly operated air diffusers and an electrostatic charging apparatus. A powder collection shroud (6, 23) adjacent at least one open end of the tubular article (3) has a carefully regulated vacuum applied thereto in order to collect oversprayed powders.</p>
申请公布号
DE69012363(D1)
申请公布日期
1994.10.20
申请号
DE1990612363
申请日期
1990.02.07
申请人
NORDSON CORP., WESTLAKE, OHIO, US
发明人
KNOBBE, ALAN J., LORAIN, OHIO 45053, US;PINTELON, JOSEPH A.E., B-1680 LENNICK, BE;PINAULT, DANIEL, F-02310 ROMENY SUR MARNE, FR