Triplex – An Innovative Three-Cathode Plasma Torch

Author:

Zierhut J.1,Haslbeck P.1,Landes K.D.1,Barbezat G.2,Muller M.2,Schutz M.2

Affiliation:

1. Universitat der Bundeswehr Munchen, Plasma Techniques Laboratory, Neubiberg, Germany

2. Sulzer Metco AG, Wohlen, Switzerland

Abstract

Abstract Present standard d.c. plasma torches are characterized by the combination of a single rod-shaped cathode and a conical one-piece anode. Mixtures of inert gases and molecular gases are used for plasma spraying of high melting powders. By adding the molecular gases high enthalpy plasma jets are generated, but simultaneously the well-known art root fluctuations cause an inhomogeneous treatment of the injected powder. The innovative plasma torch system TRIPLEX is characterized by a long nozzle and by three parallel cathodes. The nozzle consists of several rings all electrically insulated except for the last one which operates as an anode. By increasing the number of rings the three arts between the cathode tips and the anode ring can be lengthened. This leads to a higher art voltage and therefore to a higher enthalpy in the plasma jet. No molecular gases have to be used and are root fluctuations are prevented. The result is a uniform treatment of the injected powder. Using optical and electrical diagnostics the TRIPLEX torch ist compared to a typical conventional plasma torch. High spray rates and deposition efficiencies show the good performance of TRIPLEX.

Publisher

ASM International

Cited by 11 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Plasma Spray Process Integration;Handbook of Thermal Plasmas;2023

2. DC Plasma Torch Design and Performance;Handbook of Thermal Plasmas;2023

3. Plasma Spray Process Integration;Handbook of Thermal Plasmas;2022

4. Plasma-Particle Momentum, Heat and Mass Transfer;Handbook of Thermal Plasmas;2017-11-02

5. DC Plasma Torch Design and Performance;Handbook of Thermal Plasmas;2017

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3