Automatic Welding, 2017, №01



2017 №01 (03)

DOI of Article 10.15407/as2017.01.04

2017 №01 (05)

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Avtomaticheskaya Svarka (Automatic Welding), #1, 2017, pp. 35-38
 

Mathematical modeling of chemical composition of welding fumes in manual arc welding with high-alloyed electrodes

O.G. Levchenko¹ and O.N. Bezushko²

¹NTUU «Igor Sikorsky KPI» 37 Pobedy Prosp., 03056, Kiev, Ukraine
²E.O. Paton Electric Welding Institute, NASU 11 Kazimir Malevich Str., 03680, Kiev, Ukraine. E-mail: office@paton.kiev.ua
 
Abstract
A mathematical model of convective evaporation of metal from the melt surface was proposed for prediction of the composition of fumes formed in manual arc welding. Numerical analysis of the characteristics of the flow of multicomponent metal vapour in welding with high-alloyed chromium-nickel electrodes was performed. Rates of evaporation of welding fume components at application of electrodes for high-alloyed steel welding were established. Obtained mathematical model enables calculation of not only the relative mass fraction of toxic component in the fume, as it was possible up to now, but also of convective flows of welding fume components. 12 Ref., 2 Tables, 4 Figures.
 
Keywords: electric arc welding, coated electrodes, welding fumes, chemical composition, evaporation intensity, mathematical modeling
 
Received:                16.02.17
Published:               17.11.16
 
 
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