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Mostrando ítems 1-10 de 19
Correlation methods in cutting arcs
(IOPscience, 2017)
On the gas heating mechanism for the fast anode arc reattachment in a non-transferred arc plasma torch operating with nitrogen gas in the restrike mode
(Springer, 2015-10)
The present work provides a detailed kinetic analysis of the time-resolved dynamics of the gas heating during the arc reattachment in nitrogen gas in order to understand the main processes leading to such a fast reattachment. ...
Numerical Modelling of a Cutting Arc Torch
(Jan Awrejcewicz. INTECH, 2017)
Investigation of the relevant kinetic processes in the initial stage of a double-arcing instability in oxygen plasmas
(American Institute of Physics, 2018-05)
A numerical investigation of the kinetic processes in the initial (nanosecond range) stage of the double-arcing instability was developed. The plasma-sheath boundary region of an oxygen-operated cutting torch was considered. ...
Estudo de tochas de plasma através da teoria da similaridade
([s.n.], 2003)
Modelling of the Plasma–Sheath Boundary Region in Wall-Stabilized Arc Plasmas: Unipolar Discharge Properties
(Springer, 2018-01)
A two-dimensional model of the non-equilibrium unipolar discharge occurring in the plasma–sheath boundary region of a transferred-arc was developed. This model was used to study the current transfer to the nozzle (1 mm ...
Redução aluminotérmica do óxido de tântalo usando uma tocha de plasma como ignitor
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em Ciência e Engenharia de MateriaisProcessamento de Materiais a partir do Pó; Polímeros e Compósitos; Processamento de Materiais a part, 2007-03-23)
In this work was used a plasma torch of non transferred arc with argon as work gas, using a power supply with maximum DC current of 250 A and voltage of 30 V to activate the plasma and keep it switched on. The flame ...