Arc Root Attachment on the Anode Surface of Arc Plasma Torch Observed with a Novel Method
PAN Wen-Xia1 , LI Teng1 , MENG Xian1 , CHEN Xi2 , WU Cheng-Kang1
1 Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080
2 Department of Engineering Mechanics, Tsinghua University, Beijing 100084
Arc Root Attachment on the Anode Surface of Arc Plasma Torch Observed with a Novel Method
PAN Wen-Xia1 ;LI Teng1 ;MENG Xian1 ;CHEN Xi2 ;WU Cheng-Kang1
1 Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080
2 Department of Engineering Mechanics, Tsinghua University, Beijing 100084
关键词 ：
52.80.Mg ,
52.70.Kz ,
52.50.Nr
Abstract ： The arc-root attachment on the anode surface of a dc non-transferred arc plasma torch has been successfully observed using a novel approach. A specially designed copper mirror with a boron nitride film coated on its surface central-region is employed to avoid the effect of intensive light emitted from the arc column upon the observation of weakly luminous arc root. It is found that the arc-root attachment is diffusive on the anode surface of the argon plasma torch, while constricted arc roots often occur when hydrogen or nitrogen is added into argon as the plasma-forming gas.
Key words ：
52.80.Mg
52.70.Kz
52.50.Nr
出版日期: 2005-11-01
:
52.80.Mg
(Arcs; sparks; lightning; atmospheric electricity)
52.70.Kz
(Optical (ultraviolet, visible, infrared) measurements)
52.50.Nr
(Plasma heating by DC fields; ohmic heating, arcs)
引用本文:
PAN Wen-Xia;LI Teng;MENG Xian;CHEN Xi;WU Cheng-Kang. Arc Root Attachment on the Anode Surface of Arc Plasma Torch Observed with a Novel Method[J]. 中国物理快报, 2005, 22(11): 2805-2898.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2005/V22/I11/2805
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