Observation of HF Cathode and ARC Root Inside Cutting Plasma Torch

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F13%3A00395504" target="_blank" >RIV/61388998:_____/13:00395504 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Observation of HF Cathode and ARC Root Inside Cutting Plasma Torch

Original language description

Electric arc and a cathode of a cutting plasma torch was observed through fused silica window in a specially modified nozzle. Sample rate of used high-speed camera was up to 120 kHz, sufficient for detecting high-frequency fluctuations in arc plasma intensity, produced mainly by current ripple. Fluctuations were examined up to 60 kHz by Fast Fourier Transformation (FFT). Increased cathode material loss at start-up and shut-down phase of the plasma torch was observed. At start up phase, large number of small particles are ejected from the cathode. After electric current shuts down, large droplets of molten material are usually detected.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

BL - Plasma physics and discharge through gases

OECD FORD branch

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Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2013

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

XXth Symposium on Physics of Switching Arc

ISBN

978-80-214-4753-0

ISSN

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e-ISSN

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Number of pages

4

Pages from-to

297-300

Publisher name

Brno university of Technology

Place of publication

Brno

Event location

Nové Město na Moravě

Event date

Sep 2, 2013

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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