Počet záznamů: 1
Diagnostics of cathode material loss in cutting plasma torch
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SYSNO ASEP 0429753 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Diagnostics of cathode material loss in cutting plasma torch Tvůrce(i) Gruber, Jan (UT-L) RID, ORCID
Šonský, Jiří (UT-L) RID
Hlína, Jan (UT-L) RIDZdroj.dok. Journal of Physics D-Applied Physics. - : Institute of Physics Publishing - ISSN 0022-3727
Roč. 47, č. 29 (2014)Poč.str. 10 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova plasma torch ; plasma cutting ; cathode wear Vědní obor RIV BL - Fyzika plazmatu a výboje v plynech Institucionální podpora UT-L - RVO:61388998 UT WOS 000338860300006 DOI 10.1088/0022-3727/47/29/295201 Anotace A cutting plasma torch was observed in several ways by a high-speed camera with a focus on the cathode area. In the first experiment, the plasma arc between the nozzle tip and anode was recorded in a series of duty cycles ranging from new unworn cathodes to cathode failure due to wear and material loss. In the second experiment, we used a specially modified nozzle to observe the inside area between the cathode and the nozzle exit through a fused silica window. Finally, using tilted view, we observed a pool of molten hafnium at the cathode tip during the plasma torch operation. The process of cathode material melting, droplet formation, their expulsion and rate of cathode material loss was examined. Pracoviště Ústav termomechaniky Kontakt Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Rok sběru 2015
Počet záznamů: 1