公开(公告)号：US20070074656A1

公开(公告)日：2007-04-05

申请号：US11243467

申请日：2005-10-04

申请人： Zhibo Zhao ,  Bryan Gillispie ,  TaeYoung Han ,  John Rosen ,  Michael Irish

发明人： Zhibo Zhao ,  Bryan Gillispie ,  TaeYoung Han ,  John Rosen ,  Michael Irish

IPC分类号： B05C19/00

CPC分类号： C23C24/04 ,  B05B7/1486

摘要： An improved kinetic spray nozzle system design is disclosed. The nozzle includes an improved powder injector having an injector tube and a sleeve wherein the injector tube is received in the sleeve and secured to the sleeve. The powder injector further includes an air gap defined between an inner diameter of the sleeve and an outer diameter of the injector tube wherein the air gap is from 50 to 200 microns. The improved injector is capable of spraying a variety of powder materials including hard and “gummy” powders for without clogging for extended periods of time whereas under similar spray conditions previous designs became completely plugged within minutes. The improved injector design enabled the use of higher main gas temperatures to achieve improved coating formation and deposition efficiencies. Most importantly, the improved design makes it possible to use the kinetic spray system with a wide range of powder materials in a manufacturing setting without interruptions caused by powder injector clogging related problems.

摘要翻译： 公开了改进的动力喷嘴系统设计。 喷嘴包括具有喷射器管和套筒的改进的粉末喷射器，其中喷射器管被容纳在套筒中并固定到套筒上。 粉末喷射器还包括限定在套筒的内径和喷射器管的外径之间的空气间隙，其中气隙为50至200微米。 改进的注射器能够喷涂各种粉末材料，包括硬和“粘性”粉末，以免长时间堵塞，而在类似的喷雾条件下，以前的设计在几分钟内完全堵塞。 改进的喷射器设计使得能够使用更高的主气体温度来实现改进的涂层形成和沉积效率。 最重要的是，改进的设计使得可以在制造设置中使用具有各种粉末材料的动力喷雾系统，而不会由于粉末喷射器堵塞相关问题而中断。