Experimental Study on the Characteristics of a Miniature Laminar Plasma Torch with Different Gas Flow Patterns

详细信息    查看全文

• 作者：Jianguo Miao ; Deping Yu ; Xiuquan Cao ; Yong Xiang…
• 关键词：Miniature laminar plasma torch ; Laminar plasma jet ; Gas flow pattern
• 刊名：Plasma Chemistry and Plasma Processing
• 出版年：2015
• 出版时间：September 2015
• 年：2015
• 卷：35
• 期：5
• 页码：879-893
• 全文大小：3,330 KB
• 参考文献：1.Lermen RT, Machado IG (2012) Development of a new hybrid plasma torch for materials processing. J Mater Process Tech 212:2371-379View Article
  2.Pfender E (1999) Where do we stand and where are we going. Plasma Chem Plasma Process 19(1):1-1View Article
  3.Lin HF, Liao SC, Hung SW (2005) The dc thermal plasma synthesis of ZnO nanoparticles for visible-light photocatalyst. J Photochem Photobiol A 174:82-7View Article
  4.Shigeta M, Murphy AB (2011) Thermal plasmas for nanofabrication. J Phys D Appl Phys 44:174025View Article
  5.Cao M, Gitzhofer F, Gravelle DV, Henne R, Boulos MI (1997) A torch nozzle design to improve plasma spraying techniques. Plasma Sour Sci Technol 6:39-5View Article
  6.Muggli FA, Molz RJ, McCullough R, Hawley D (2007) Improvement of plasma gun performance using comprehensive fluid element modeling: part I. J Therm Spray Technol 16:677-83View Article
  7.Samotugin SS, Pirch II, Mazur VA (2003) Optimising the design of plasma torches for surface hardening of materials. Weld Int 17(5):404-06View Article
  8.Li HP, Pfender E (2005) Three-dimensional effects inside a dc arc plasma torch. IEEE Trans Plasma Sci 33(2I):400-01
  9.Das AK (2000) Arc root dynamics in high power plasma torches—evidence of chaotic behavior. Pramana 55(5-):873-86View Article
  10.Duan Z, Heberlein J (2002) Arc instabilities in a plasma spray torch. J Therm Spray Technol 11:44-1View Article
  11.Zha BL, Jiang P, Yuan XJ, Qiao SL, Huang DY (2012) The study of plasma jet characteristics. Nucl Fusion Plasma Phys 32:187-92
  12.Pan WX, Zhang WH, Ma W, Wu CK (2001) Characteristics of argon laminar DC plasma jet at atmospheric pressure. Plasma Chem Plasma Process 22(2):271-83View Article
  13.Pan WX, Zhang WH, Zhang WH, Wu CK (2001) Generation of long, laminar plasma jets at atmospheric pressure and effects of flow turbulence. Plasma Chem Plasma Process 21(1):23-5View Article
  14.Xiang Y, Yu DP, Cao XQ, Yao J (2014) Experimental study on characteristic of direct-curent laminar-flow nitrogen plasma-jet. High Power Laser Paticle Beams 26(09):168-72
  15.Osaki K, Fukumasa O, Kobayashi A (2000) High thermal efficiency-type laminar plasma jet generator for plasma processing. Vacuum 59:47-4View Article
  16.Huang HJ, Pan WX, Guo ZY, Wu CK (2008) Laminar/turbulent plasma jets generated at reduced pressure. IEEE Trans Plasma Sci 36(4, 1):1052-053View Article
  17.Pan WX, Meng X, Li G, Fei QX, Fei CK, Wu CK (2005) Feasibility of laminar plasma jet hardening of cast iron surface. Surf Coat Technol 197:345-50View Article
  18.Wu GZ, Li T, Pan WX (2006) Laminar plasma sraying of metal wire in atmosphere. Heat Treat Met S1:143-45
  19.Ma W, Fei QX, Pan WX, Wu CK (2006) Investigation of laminar plasma remelting/cladding processing. Appl Surf Sci 252:3541-546View Article
  20.Langlois-Bertrand E, de Izarra C (2011) Experimental characterization of an argon laminar plasma jet at atmospheric pressure. J Phys D Appl Phys 44:415201View Article
  21.Krowka J, Rat V, Coudert JF (2013) Investigation and control of dc arc jet instabilities to obtain a self-sustained pulsed laminar arc jet. J Phys D Appl Phys 46:505206View Article
  22.Deng J, Li YJ, Xu YX, Sheng HZ (2011) Numerical simulation of fluid flow and heat transfer in a DC non-transferred arc plasma torch operating under laminar and turbulent conditions. Plasma Sci Technol 13(2):201-07View Article
  23.Li G, Pan WX, Meng X, Wu CK (2005) Application of similarity theory to the characterization of non-transferred laminar plasma jet generation. Plasma Sour Sci Technol 14:219-25View Article
  
• 作者单位：Jianguo Miao (1)
  Deping Yu (1)
  Xiuquan Cao (1)
  Yong Xiang (1)
  Meng Xiao (1)
  Jin Yao (1)
  
  1. School of Manufacturing Science and Engineering, Sichuan University, Chengdu, 610065, China
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Mechanics
  Characterization and Evaluation Materials
  Mechanical Engineering
  Inorganic Chemistry
  Nuclear Physics, Heavy Ions and Hadrons
  
• 出版者：Springer Netherlands
• ISSN：1572-8986

文摘

As laminar plasma jet has long stable plasma jet, low temperature gradient, negligible noise emission, good processing reproducibility and controllability, it is suitable for industrial applications with high precision requirement. However, the conventional laminar plasma torches are large in size and thus can hardly be applied in processing occasions with space limitation. In this paper, a miniature DC non-transferred arc laminar plasma torch with an external size of about 57?×?56?×?42?mm is proposed to meet the processing requirements in these occasions. It can generate long laminar plasma jet with a maximum jet length of about 300?mm at atmospheric pressure with pure nitrogen. Experimental study on the proposed plasma torch has been carried out to obtain its arc voltage characteristics and the jet length characteristics. It has been founded that the plasma torch with spiral gas flow pattern generally has higher arc voltage and longer jet length than that with axial gas flow pattern. In addition, a special jumping arc voltage characteristic and the variation appearances of the plasma jet were founded, which may be used to design miniature laminar plasma torch with high arc voltage and thus low arc current for the same output power as the conventional ones.