Effects of Nozzle Length and Process Parameters on Highly Constricted Oxygen Plasma Cutting Arc

doi:10.1007/s11090-008-9154-y

	Effects of Nozzle Length and Process Parameters on Highly Constricted Oxygen Plasma Cutting Arc
	Zhou, Qianhong 1; Li, Hui 2; Liu, Feng 1; Guo, Shaofeng 1; Guo, Wenkang 1; Xu, Ping 1
刊名	PLASMA CHEMISTRY AND PLASMA PROCESSING
	2008-12-01
卷号	28 页码:729-747
关键词	Nozzle length Arc current Mass flow rate Plasma cutting arc Numerical simulation
ISSN号	0272-4324
DOI	10.1007/s11090-008-9154-y
英文摘要	The influence of nozzle length and two process parameters (arc current, mass flow rate) on the plasma cutting arc is investigated. Modeling results show that nozzle length and these two process parameters have essential effects on plasma arc characteristics. Long nozzle torch can provide high velocity plasma jet with high heat flux. Both arc voltage and chamber pressure increase with the nozzle length. High arc current increases plasma velocity and temperature, enhances heat flux and augments chamber pressure and thus, the shock wave. Strong mass flow has pinch effect on plasma arc inside the torch, enhances the arc voltage and power, therefore increases plasma velocity, temperature and heat flux.
资助项目	CSIRO Materials Science and Engineering, Australia
WOS关键词	TRANSPORT-COEFFICIENTS ; SPECTROSCOPIC ANALYSIS ; TORCH ; AIR ; ARGON ; DYNAMICS ; NITROGEN
WOS研究方向	Engineering ; Physics
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000261288700006
资助机构	CSIRO Materials Science and Engineering, Australia
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/29432]
专题	中国科学院近代物理研究所
通讯作者	Zhou, Qianhong
作者单位	1.Fudan Univ, Inst Modern Phys, Plasma Lab, Shanghai 200433, Peoples R China 2.Univ Sci & Technol China, Dept Thermal Sci & Energy Engn, Hefei 230027, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Qianhong,Li, Hui,Liu, Feng,et al. Effects of Nozzle Length and Process Parameters on Highly Constricted Oxygen Plasma Cutting Arc[J]. PLASMA CHEMISTRY AND PLASMA PROCESSING,2008,28:729-747.
APA	Zhou, Qianhong,Li, Hui,Liu, Feng,Guo, Shaofeng,Guo, Wenkang,&Xu, Ping.(2008).Effects of Nozzle Length and Process Parameters on Highly Constricted Oxygen Plasma Cutting Arc.PLASMA CHEMISTRY AND PLASMA PROCESSING,28,729-747.
MLA	Zhou, Qianhong,et al."Effects of Nozzle Length and Process Parameters on Highly Constricted Oxygen Plasma Cutting Arc".PLASMA CHEMISTRY AND PLASMA PROCESSING 28(2008):729-747.