公开(公告)号：EP1452236A2

公开(公告)日：2004-09-01

申请号：EP04076629.7

申请日：2001-07-09

申请人： NORDSON CORPORATION

发明人： Sanner, Michael Ross ,  Rehman, William R. ,  Lader, Harry J. ,  Guskov, Sergey ,  Knobbe, Alan John ,  Messerly, James W. ,  Crum, Gerald W.

IPC分类号： B05B5/047

CPC分类号： B05B5/0418 ,  B05B1/02 ,  B05B1/04 ,  B05B1/042 ,  B05B1/265 ,  B05B5/032 ,  B05B5/0407 ,  B05B5/0426 ,  B05B5/047 ,  B05B5/053

摘要： A plurality of unconventional negative tribocharging materials are described for use as the powder contact surfaces in tribocharging and corona powder spray guns, gun components, and powder delivery system components. The invention also provides a short barrel tribocharging powder spray gun (200) having an interchangeable powder contact insert (220) and nozzle (230), with turbulence inducing air jets (240). The invention further provides novel tribocharging and corona gun designs. Improved powder coating systems are made possible wherein, for example, negative tribo guns can be utilized with negative corona guns to coat different parts of the same workpiece in a powder coating system. Also provided is an inside-out configuration in which pressurized air directs powder coating material outward towards a charging surface. Additional configurations provide air jet induced tribocharging and conventional tribocharging portions combined in a single gun.

摘要翻译： 描述了多种非常规的负摩擦充电材料用作摩擦充电和电晕粉末喷枪，枪组件和粉末输送系统部件中的粉末接触表面。 本发明还提供了具有可互换的粉末接触插入件（220）和喷嘴（230）的短桶摩擦充量粉末喷枪（200），其具有引起湍流的空气射流（240）。 本发明还提供新颖的摩擦充电和电晕枪设计。 改进的粉末涂覆系统是可能的，其中例如可以使用负电晕枪与负电晕枪一起在粉末涂覆系统中涂覆相同工件的不同部分。 还提供了一种内向外配置，其中加压空气将粉末涂料向外朝向充电表面引导。 另外的配置提供喷气式感应摩擦增压和在单个喷枪中组合的常规摩擦充量部分。