| Title |
Extension of Electrode Lifetime for Plasma Torch by Axial Magnetic Field |
| Authors |
조주현(Cho, Chu-Hyun) ; 한용기(Han, Yong-Ki) ; 한현(Han, Hyun) ; 권오경(Kwon, Oh-Kyung) ; 최영욱(Choi, Young-Wook) |
| Keywords |
plasma torch ; arc voltage ; electrode lifetime ; magnetic field |
| Abstract |
Axial magnetic field was applied into the hollow anode of plasma torch for the purpose of extension of electrode lifetime. The average arc voltage increased because the arc column became longer, the arc voltage ripple frequency became low. The steady state of arc voltage was removed by applied magnetic filed. The lifetime of electrode was 60 times longer than operation without magnetic field. |