Generation of plasma flows by arc plasmatrons

5th International Congress on Energy Fluxes and Radiation Effects 2016

Anshakov, A.S.^1 ; Domarov, P.V.^2 ; Faleev, V.A.^1 ; Danilenko, A.A.^2

Kutateladze Institute of Thermophysics SB RAS, Lavrentiev av. 1, Novosibirsk

630090, Russia^1

Novosibisrsk State Technical University, Karl Marx av. 20, Novosibirsk

630073, Russia^2

关键词: Distribution of temperature;    Functional properties;    Interelectrodes;    Material modifications;    Plasma technology;    Plasmatrons;    Thermal plasma;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/830/1/012052/pdf
DOI  :  10.1088/1742-6596/830/1/012052

来源: IOP

【 摘 要 】

Plasma technologies of material modification and deposition of coatings with different functional properties can be implemented if the efficient sources of plasma flows are available. These sources are the electric-arc generators of thermal plasma (plasmatrons). The effect of different plasmatron schemes on distribution of temperature and velocity of plasma flows is considered in the current study. For example, it is shown that a partitioned interelectrode insert and gas injection between the sections ensure a plateau in temperature distribution T(r). A similar result was obtained for the plasma flow at the exit of the plasmatron with a stepped output electrode.