公开(公告)号：DE602008004029D1

公开(公告)日：2011-02-03

申请号：DE602008004029

申请日：2008-08-20

Applicant: UNITED TECHNOLOGIES CORP

Inventor： STROCK CHRISTOPHER ,  LANG THOMAS E

IPC: B05B13/02 ,  B05B15/04

公开(公告)号：SG136043A1

公开(公告)日：2007-10-29

申请号：SG2007013345

申请日：2007-02-26

Applicant: UNITED TECHNOLOGIES CORP

Inventor： LANG THOMAS E ,  STROCK CHRISTOPHER W

Abstract: A powder port blow-off system for a plasma spray process includes a faceplate that includes a bore therein that is co-radially aligned with a nozzle of a plasma spray gun, which emits a plasma plume. A plurality of powder feed ports are arranged circumferentially around the nozzle for injecting a flow of powder particles toward the plasma plume. A plurality of powder port blow-offs are arranged circumferentially around the nozzle in order to direct blow-off gas across the powder feed ports. The powder port blow-offs are directed across the plasma plume to create a vortex for carrying away powder particles unconsumed by the plasma plume.