| 2011 №01 (05) | 2011 №01 (07) |
The Paton Welding Journal, 2011, #1, 32-35 pages
CONCENTRATIONS OF CARBON OXIDE AND NITROGEN DIOXIDE IN AIR OF A WORKING ZONE IN COVERED-ELECTRODE WELDING
O.G. LEVCHENKO1, A.O. LUKIANENKO1 and Yu.O. POLUKAROV2
1E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
2NTUU «Kiev Polytechnic Institute», Kiev, Ukraine
Abstract
The paper presents the results of investigations of dependencies of concentrations of noxious gases (carbon oxide and nitrogen dioxide) released into working zone air in covered-electrode manual arc welding on distance to welding arc under different ventilation conditions (with general ventilation, local ventilation and without ventilation). Respective analytical equations are derived that allow forecasting noxious gas concentrations in different points of the working zone depending on welding arc power.
Keywords: arc welding, covered electrodes, noxious gases, carbon oxide, nitrogen dioxide, ventilation, concentration of gases in air, prediction
Received: ??.??.??
Published: 28.01.11
References
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