https://doi.org/10.1007/s100530050308
Experimental study for the optimization of plasma torch operations
1
Dipartimento di Fisica, sez. Plasmi, Via Celoria 16, 20133 Milano, Italy
2
Dipartimento di Scienze dell'Ambiente e del Territorio, Via Emanueli 15, Milano, Italy
Received:
20
November
1998
Revised:
11
December
1998
Published online: 15 May 1999
In this paper the electric and efficiency attributes of a low-powered dc
plasma torch has been investigated. Torch operations require reproducibility,
reliability and economicity to be attained. The characterisation allowed
to scope operative ranges on the basis of minimum voltage fluctuations and
maximum thermal efficiency levels for different gas flow rates, anode dimensions,
arc current and two process gases 
.
PACS: 52.75.Hn – Plasma torches. / 52.75.Rx – Plasma applications in manufacturing and materials processing (etching, surface cleaning, spraying, arc welding, ion implantation, film deposition, etc.).
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 1999
