Properties of Novel Hybrid Water-Gas DC Arc Plasma Torch

0438654 - ÚFP 2015 RIV CZ eng A - Abstract
Chráska, Tomáš - Hrabovský, Milan - Glanc, Aleš - Mušálek, Radek - Medřický, Jan
Properties of Novel Hybrid Water-Gas DC Arc Plasma Torch.
Electronic Proceedings of ETSA workshop 2014: Coatings for high temperature applications. Plzeň: University of West Bohemia, 2014 - (Houdková, Š.; Křenek, T.). ISBN 978-80-261-0433-9.
[Workshop on thermal spray and laser clad coatings: Coatings for high temperaure applications. 14.10.2014-15.10.2014, Plzeň]
Institutional support: RVO:61389021
Keywords : Water-Gas * Plasma Torch
Subject RIV: JK - Corrosion ; Surface Treatment of Materials
http://etsa-thermal-spray.org/uploads/articles/0662da367b8d9d1b398ff8a37bb8af7c84777a88.pdf

A new type of plasma torch with combined stabilization of electric arc by water vortex and gas flow is presented. This hybrid water/gas stabilization offers the possibility of adjusting plasma jet parameters within a wide range from high-enthalpy low-density plasmas typical for liquid stabilized torches to lower enthalpy higher density plasmas generated in gas stabilized torches. Moreover, gas flow in the cathode part protects a cathode tip and thus a consumable graphite cathode used in water-only stabilized plasma torches could be replaced by a fixed tungsten cathode. Examples of hybrid WSP torch utilization for high temperature application are given.
Permanent Link: http://hdl.handle.net/11104/0242074