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Fukumasa Osamu

Affiliate Master Yamaguchi University

Performance characteristics of forced constricted type plasma jet generator with divergent nozzle anode for processing

Vacuum Volume 73 Issue 3-4 Page 365-371
published_at 2004
Title
Performance characteristics of forced constricted type plasma jet generator with divergent nozzle anode for processing
Creators Osaki Katashi
Creators Fujimoto Satoru
Creators Fukumasa Osamu
Creators Kobayashi Akira
Creator Keywords
Plasma jet Arc plasma Arc constriction Plasma jet generator Nozzle anode
In order to increase a jet power and an operating duration time of the forced constricted type plasma jet generator developed by authors, newly designed divergent nozzle anodes were developed. The diameter of nozzle anode changed in two steps, i.e. the inner diameter increased stepwise from the inlet towards the exit. The effects of the nozzle configuration on the characteristics of the arc and plasma jet were studied experimentally. The anode spot always attached at the taper section between the inlet region and the exit region. The arc voltage decreased by 3.2-9.1 V compared with that of a cylindrical nozzle anode, but a stable operating arc current expand up to 200 A. A stable and high power plasma jet was maintained over a long time at 200 A in arc current. The most suitable length of the inlet region was 2 mm, when the diameter of the inlet and exit regions was 6 and 8 mm, respectively.
Languages eng
Resource Type journal article
Publishers Elsevier
Date Issued 2004
File Version Not Applicable (or Unknown)
Access Rights metadata only access
Relations
[ISSN]0042-207X
[NCID]AA00879589
info:doi/10.1016/j.vacuum.2003.12.056
[isVersionOf] [URI]http://www.sciencedirect.com/science/journal/0042207X
Schools 大学院理工学研究科(工学)