Loading...
Novel jet stability evaluating method for DC plasma torch
Cao, Xiuquan Chen, Weiming Liang, Yunhao Liu, Xing Li, Bin Tang, Yufeng
Cao, Xiuquan
Chen, Weiming
Liang, Yunhao
Liu, Xing
Li, Bin
Tang, Yufeng
Citations
Altmetric:
Advisors
Editors
Other Contributors
EPub Date
Publication Date
2025-12-27
Submitted Date
Collections
Files
Loading...
Article - VoR
Adobe PDF, 4.11 MB
Other Titles
Abstract
The jet stability of a DC plasma torch affects not only the service life of the torch but also processing consistency in industrial applications. To evaluate both instantaneous and longstanding jet stabilities of a plasma torch, a novel jet stability evaluation method has been developed in this study. The collected raw signals were first analyzed using the fast Fourier transform and filtered with identified characteristic frequencies. Based on the filtered signals, a 200 ms sliding window method was employed to evaluate the relative fluctuation of arc voltage in terms of both longstanding and instantaneous jet stabilities of the plasma torch. The results show that: (1) the proposed method can effectively evaluate both instantaneous and longstanding jet stability of a DC plasma torch; (2) the arc voltage and arc current signals contain a characteristic frequency, which is strongly influenced by the gas flow rate; (3) the laminar plasma torch operates stably at an arc current of 90 A, and its longstanding jet stability improves with increasing gas flow rate. The findings and proposed method provide informative guidance to those interested in the improvement of plasma jet stability and processing consistency.
Citation
Cao, X., Chen, W., Liang, Y., Liu, X., Li, B., & Tang, Y. (2026). Novel Jet Stability Evaluating Method for DC Plasma Torch. Plasma Chemistry and Plasma Processing, 46(1), 11. https://doi.org/10.1007/s11090-025-10634-4
Publisher
Springer Nature
Journal
Plasma Chemistry and Plasma Processing
Research Unit
PubMed ID
PubMed Central ID
Type
Article
Language
en
Description
The version of record of this article, first published in Plasma Chemistry and Plasma Processing, is available online at Publisher’s website: https://link.springer.com/article/10.1007/s11090-025-10634-4.
Series/Report no.
ISSN
0272-4324
EISSN
1572-8986
ISBN
ISMN
Gov't Doc
Test Link
Sponsors
The authors appreciate the supports of the Scientific Research and Innovation Team Program of Sichuan University of Science and Technology (No. SUSE652A004), the Luzhou City Science and Technology Plan Project (No.2024JYJ004) and the Key Laboratory of Mechanical Structure Optimization & Material Application Technology of Luzhou (No.SCHYZSA-2025-01).