λ (nm) pyrometers λ (nm) O I λ (nm) O II λ (nm) Fe I λ (nm) Fe II λ 0 1001 999.5 1001 999.8 1001 1005 λ 1 1061 1067 1064 1057 λ 2 1133 1129 1133 1137 1135
23 more rows ... May 15 2019Author: Ph Teulet, L Girard, M Razafinimanana, A Gleizes, Ph Bertrand, F Camy-Peyret, E Baillot, F RichardCited by: 42Publish Year: 2006sp.info Experimental study of an oxygen plasma cutting torch: I ...Mar 30, 2006 · An experimental study of the oxygen plasma jet of an OCP 150 cutting torch marketed by Air Liquide is presented. A fast CCD camera is used to visualize the shock wave geometry at the nozzle exit. Optical emission spectroscopy techniques are used to determine the temperature, the electron number density, the pressure and the fraction of nitrogen in the …Cited by: 59Publish Year: 2006Author: L Girard, Ph Teulet, M Razafinimanana, A Gleizes, F Camy-Peyret, E Baillot, F Richardsp.info Experimental study of an oxygen plasma cutting torch: II ...Mar 30, 2006 · Metal plasma cutting devices are widely used in industry, and recent developments of torch design together with the use of oxygen as plasma producing gas allow improvement in cutting quality [1, 2]. Because of its oxidising properties, oxygen leads to more regular surfaces inside the kerf with a better evacuation of the molten metal and less dross …Cited by: 42Publish Year: 2006Author: Ph Teulet, L Girard, M Razafinimanana, A Gleizes, Ph Bertrand, F Camy-Peyret, E Baillot, F RichardEstimated Reading Time: 11 minssp.info Experimental study of an oxygen plasma cutting torch: I ...An experimental study of the oxygen plasma jet of an OCP 150 cutting torch marketed by Air Liquide is presented. A fast CCD camera is used to visualize the shock wave geometry at …Estimated Reading Time: 11 mins
Apr 01, 2006 · Abstract. A study of arc-material interaction and energy transfer in the case of plasma cutting is presented. A fast CCD camera moving with the torch is used to estimate the anodic arc root location inside the kerf. Temperature measurements on the cut-front surface and on the kerf edges are performed by infrared pyrometry.Cited by: 42Publish Year: 2006Author: Ph Teulet, L Girard, M Razafinimanana, A Gleizes, Ph Bertrand, F Camy-Peyret, E Baillot, F RichardEstimated Reading Time: 1 minsp.info Numerical and experimental study of a plasma cutting torch ...Dec 19, 2001 · A low current intensity study of a cutting plasma torch is presented. The operating gas is oxygen discharging in an air environment. A two-dimensional turbulent plasma model is developed with the commercial code Fluent 4.5. An experimental and a theoretical study are presented. Two configurations were used: one where the arc is transferred to a rotating anode …Cited by: 116Publish Year: 2002Author: P Freton, J J Gonzalez, A Gleizes, F Camy Peyret, G Caillibotte, M DelzenneEstimated Reading Time: 6 minssp.info (PDF) Experimental Determination of Temperature Electronic ...An experimental study of the oxygen plasma jet of an OCP 150 cutting torch marketed by Air Liquide is presented. A fast CCD camera is used to visualize the shock wave geometry at …sp.info Experimental Study of the Effect of Plasma Cutting on the ...Nov 30, 2021 · The cutting process in plasma cutting begins with the formation of a pilot arc between the electrode and the workpiece as a result of the electrical ionization reaction of the highly conductive cutting gas. The gas is heated by the pilot arc until its temperature rises very high then the gas will be ionized and become a conductor of electricity.
An experimental study of a torch for oxygen plasma arc cutting (PAC) was conducted. We made a nozzle equipped with a window and a port for measurement. We observed the hafnium (Hf) electrode during working, using a color high-speed video camera through the window.sp.info Experimental Investigation of the Plasma Arc Cutting …Fig. 2. Plasma arc cutting history milestones The objective of this paper is the investigation and determination of the most important parameters that influence the cutting quality on oxygen ...sp.info Spectroscopic measurements on an oxygen cutting plasmaAn experimental study of the oxygen plasma jet of an OCP 150 cutting torch marketed by Air Liquide is presented. A fast CCD camera is used to visualize the shock wave geometry at …sp.info Experimental Investigation of the Plasma Arc Cutting ...Jan 01, 2012 · Investigations on plasma cutting process on various materials have identified as dominant process parameters the following ones [1, 2]: Î¾ cutting speed, Î¾ cutting current, Î¾ cutting height or standoff (i.e. the distance maintained between torch and workpiece after piercing and while cutting), Î¾ nature, pressure and flow of the ...Cited by: 107Publish Year: 2012Author: K. Salonitis, S. Vatousianos
Experimental results obtained during cutting of 1mm thick mild steel plates at 60 A with steam, air, nitrogen and 6 oxygen plasma gases are presented. The results discuss effect of the plasma gas nature and flow rate on arc characteristics, melting rate of the material, energy balance of the cutting process and kerf shape. Keywords: transferred ...sp.info Numerical and experimental study of a plasma cutting torch ...Jan 01, 2002 · Numerical and experimental study of a plasma cutting torch. A low current intensity study of a cutting plasma torch is presented. The operating gas is oxygen discharging in an air environment. A two-dimensional turbulent plasma model is …Cited by: 116Publish Year: 2002Author: P Freton, J J Gonzalez, A Gleizes, F Camy Peyret, G Caillibotte, M DelzenneEstimated Reading Time: 1 minsp.info Experimental Study of Consumption of Hafnium Electrode in ...Mar 19, 2013 · An experimental study was conducted on the consumption of hafnium electrodes during oxygen plasma arc cutting (PAC). Hafnium (Hf) is used as a refractory cathode material for thermionic emission in a high-temperature region. The consumption of an Hf electrode was investigated by measuring the concavity depth on the Hf electrodes after operations. These …Cited by: 3Publish Year: 2012Author: Yoshihiro Yamaguchi, Kazuki Yoshida, Yoshihiko Uesugi, Yasunori Tanaka, Shigeo Morimoto, Mikio Minon...Estimated Reading Time: 5 minssp.info RIDSODVPD - IOPscienceA low current intensity study of a cutting plasma torch is presented. The operating gas is oxygen discharging in an air environment. A two-dimensional turbulent plasma model is developed with the commercial code Fluent 4.5. An experimental and a theoretical study are presented. Two conﬁgurations were used: one where the arc is transferred toCited by: 116Publish Year: 2002Author: P Freton, J J Gonzalez, A Gleizes, F Camy Peyret, G Caillibotte, M Delzenne
plasma torch or Plasma gun. ... The main purpose of this experimental work was to study the plasma arc cutting parameters in smooth ... layout in order to study Plasma Arc Cutting (PAC).sp.info Spectroscopic Characterization of a Steam Arc Cutting TorchAug 21, 2011 · In the theoretical and experimental study of an oxygen plasma cutting torch, Freton et al. proposed an iterative method that uses an experimental emission coefficient of a single ionic line and half width of an atomic line to determine the temperature and the electron number density simultaneously.Cited by: 6Publish Year: 2011Author: V. Sember, A. Mašláni, P. Křenek, M. Heinrich, R. Nimmervoll, H. Pauser, M. HrabovskýEstimated Reading Time: 12 minssp.info Girard, L, Teulet, Ph, Razafinimanana, M, Gleizes, A, Camy ...Experimental study of an oxygen plasma cutting torch: I. Spectroscopic analysis of the plasma jet: Journal: Journal of Physics D: Applied Physics: Authors: Girard, L: Author: Teulet, Ph: Author: Razafinimanana, M: Author: Gleizes, A: Author: Camy-Peyret, F: Author: Baillot, E: Author: Richard, F: Author: Year: 2006 (April 21) Volume: 39: Page(s) 1543-1556: Publisher: …sp.info A theoretical study of a cutting air plasma torch (Journal ...Feb 01, 1999 · For cutting metallic plates, plasma torches must produce a narrow supersonic plasma jet with enough energy and momentum densities to melt, vaporize, and remove the metal from the impingement region. The model allows us to study the details of the flow and to make predictions on arc voltage, heat transfer to the workpiece, force, and pressure exerted by the …Estimated Reading Time: 10 mins
Dec 14, 2019 · The present research work exhibits the experimental study of the effect of plasma gas type and flow rate on hardox-400 material plate. Argon, air, nitrogen, and oxygen were used as plasma gas for cutting the aforesaid material. The following conclusions are drawn on the basis of the results of present investigation.Cited by: 2Publish Year: 2020Author: Deepak Kumar Naik, Kalipada Maitysp.info Effects of Nozzle Length and Process Parameters on Highly ...Oct 23, 2008 · Just recently, Colombo et al. investigated the behavior of different types of transferred-arc dual-gas plasma torches used for the cutting of metallic materials by means of a 2-D FLUENT-based numerical model. To obtain high power and velocity plasma jet, the constricted nozzle should be long and finer . Up to now, choosing length-diameter ratio of the …Cited by: 11Publish Year: 2008Author: Qianhong Zhou, Hui Li, Feng Liu, Shaofeng Guo, Wenkang Guo, Ping XuEstimated Reading Time: 9 minssp.info Experimental Analysis of Different Coolants Used in Plasma ...The plasma cutting technology has been emerged as a developing technology which finds tremendous potential in fabrication and metal cutting industries. Thus for the cutting operation, the electrode inside the plasma torch plays a vital role for the plasma arc generation. The temperature of the arc is very high and at the electrode is around 3500°C.Cited by: 1Publish Year: 2015Author: Ginka Ranga Janardhana, Mani Senthil Kumar, B. Dhanasekarsp.info Control of fluid dynamic instability in oxygen plasma arc ...plasma jet interacts with the cold gas environment. This research is focused on the characterization of the arc instabilities, and on plasma torch design changes to minimize the effect of the instabilities and to optimize cut quality. 2. Experimental setup Fig.1 shows the main components of the plasma arc cutting system .
Jan 01, 2016 · The results of the experimental evaluation of the response of low-alloy steels on the thermal cycle of plasma and oxy-fuel cutting to determine their applicability for preparation of workpiece edges without subsequent machining are given in this article.sp.info A Study on the Cut Surface Quality of Mild Steel Plate by ...cutting in order to remove internal stresses. Nozzle diameter and the stand-off height of cutting torch are constant. Cutting experiments were carried out under different arc currents and cutting speeds. Experimental conditions are shown in Table 1. Moreover, a cut of 100 mm length lied in the middle of width.Cited by: 8Publish Year: 1999Author: Kazuomi Kusumoto, Jiayou Wang, Kikuo Nezusp.info Experimental Thermal and Fluid Sciencethicker than in other thermal processes like laser or plasma. Fig. 1 shows a torch tip geometry typical to most oxyfuel cutting systems. The preheat fuel/oxygen mixture is issued from a series of small passages arranged annularly around a central hole which issues the cutting oxygen. The small passages are sized to prevent the ﬂamesp.info Measurement of Temperature in the Steam Arcjet During ...Feb 16, 2013 · One of the first was Pardo et al. who presented experimental values of temperature, pressure, electron number densities and species densities for a commercial air plasma cutting torch operated at three arc currents 50, 100 and 150 A. Girard et al. studied cutting torch operated with oxygen as a plasma gas at arc current 60 A. Their results include …Cited by: 5Publish Year: 2013Author: A. Mašláni, V. Sember, T. Stehrer, H. Pauser
This study concerned the region situated under the shock wave located in the immediate vicinity of the nozzle exit. 1. Introduction 2.2. Experimental setup Several investigations about oxygen plasma cutting In the acquisition device, an optical system, which torch were realized previously in our laboratory [1-2].Including results for experimental study of an oxygen plasma cutting torch.Do you want results only for experimental study of an oxygen plasma cutting torchii?
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