公开(公告)号：DE19542863A1

公开(公告)日：1997-05-22

申请号：DE19542863

申请日：1995-11-17

Applicant: ABB RESEARCH LTD

Inventor： BOERNER GUENTER DIPL ING ,  NIENBURG HANS CHRISTOPH DIPL C ,  WITTMANN JOSEF ,  BOEHME HELMUT PROF DR ING

IPC: B05B1/26 ,  B05B5/03 ,  B05B5/053 ,  B05B5/025 ,  B05B7/14

Abstract: The gun has a chamber (1) into which is blown the powder/air mixture via a lateral duct (11). This generates a swirl action and the exit of the chamber passes HT electrodes (7) before being expelled via a deflector plate (9) to spread the powder spray. The earthing electrode (5) is surrounded by a sheath and has clean air blown through the space between the sheath and the electrode. The air keeps the electrode clean of powder deposits. The spacing of the electrodes is adjustable and the HT electrodes are in a ring, or in several rings. The HT electrodes are similarly supplied with cleaning air flows.