| Autor: |
Popil, Yu. S., Korzh, V. M., Chernyak, V. Ya., Zakharov, Ye. A. |
| Předmět: |
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| Zdroj: |
Paton Welding Journal; 2020, Issue 11, p36-40, 5p |
| Abstrakt: |
The problem of obtaining a low-temperature plasma jet, where the plasma-forming gas is a hydrogen-oxygen mixture produced by electrolysis-water generators, was considered. The aim of the work is to determine the size of the active zone of the jet, along the length of which the melting and heating of the particle takes place, and to control it by changing the nature of the flow. In the course of diagnosing the plasma jet, the distribution of temperature, velocity and effective thermal power depending on the nature of the jet flow was determined. It was determined that the sizes of the active zone of the plasma jet can be 1.4 times larger at a laminar nature of the flow than at a turbulent one. The maximum temperature is observed in the arc part of the plasmatron and amounts to 8400 ± 1000 K, in the jet of hydrogen-oxygen plasma the average temperature is 5000 ± 500 K. Taking into account the results of the diagnostics, the material for plasma spraying and distance can be chosen. 19 Ref., 1 Table, 2 Figures. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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