Results 221 to 230 of about 30,015 (273)
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FROM TRANSFERRED ARC TO PLASMA TORCHES
High Temperature Material Processes (An International Quarterly of High-Technology Plasma Processes), 2005Thermal plasma generated either by transferred arc or by plasma torches are involved in many industrial processes including, for example, cutting, welding, powder synthesis or coating elaboration by plasma spray techniques. The common feature is that electrical energy is converted into thermal energy, which must be transferred differently following the
Coudert, Jean-François +3 more
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Plasma torch igniter for scramjets
Journal of Propulsion and Power, 1989A small, uncooled plasma torch was developed and used in combination with an injector designed to study ignition and flameholding in hydrogen-fueled supersonic flows. The plasma torch was operated on mixtures of hydrogen and argon with total flows of 10 to 70 scfh.
Timothy C. Wagner +3 more
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1978
The plasma torch is a poorly understood, little known prodigy among the physical modalities used in medicine. It is unknown to most physicians because it is presently an experimental tool, references in the medical literature are sparse, and it masquerades under several aliases.
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The plasma torch is a poorly understood, little known prodigy among the physical modalities used in medicine. It is unknown to most physicians because it is presently an experimental tool, references in the medical literature are sparse, and it masquerades under several aliases.
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Arcs, plasma torches and applications
IEEE Conference Record - Abstracts. 2002 IEEE International Conference on Plasma Science (Cat. No.02CH37340), 2003Summary form only given, as follows. The applications of arcs and plasma torches can be roughly classified in two domains: electrical engineering and thermal (or chemical) processes. In the first category we can consider circuit-breakers, arc lamps and some aspects concerning lightning. In the second category, we can distinguish metallurgical processes
A. Gleizes +2 more
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Ion implantation for plasma torches
Vacuum, 2002Abstract It has been shown before that the erosion of a cathode is related to the condition of its surface, particularly with respect to its composition. The composition of the surface seems to affect different parameters, including the work function of the surface.
I.R. Jankov, I.D. Goldman, R.N. Szente
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Platelet-cooled plasma torch electrode
26th Plasmadynamics and Lasers Conference, 1995This paper discusses design and testing of a hollow type platelet-cooled plasma torch electrode having more than ten times the life of conventional electrodes. The platelet electrode possesses internal water cooling channels as well as gas injection passages which permit tangential injection of a secondary gas at the electrode inner diameter.
Scott Sieger +3 more
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Next Generation Plasma Spray Torch
AM&P Technical Articles, 2021Abstract Innovations built into a new plasma spray torch address shortcomings of previous axial injection equipment.
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Atmospheric pressure microwave plasma torch
2011 Abstracts IEEE International Conference on Plasma Science, 2011An home made atmospheric pressure microwave plasma torch has been built. The plasma discharge has been generated at 2.45 GHz frequency for different powers with argon and helium gases for the different flow rates. Optical emission spectrum of microwave excited discharge will be provided.
F. Bozduman +3 more
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Understanding plasma fluid dynamics inside plasma torches through advanced modeling
2007 16th IEEE International Pulsed Power Conference, 2007The aim of this paper is to investigate the behavior of different types of transferred-arc dual-gas plasma torches used for the cutting of metallic materials by means of a 2-D FLUENT-based numerical model, putting into evidence the physical reasons for the industrial success of various design and process solutions appeared over the last years, such as ...
COLOMBO, VITTORIO +4 more
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Induction-Coupled Plasma Torch
Journal of Applied Physics, 1961A new method of generating a stable plasma at atmospheric pressure using inductive coupling at a frequency of several Mc is described. Methods of starting and operating this plasma in argon, and mixtures of argon with helium, hydrogen, oxygen, and air are discussed.
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