Characterization of fume particles generated during arc welding with various covered electrodesстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 14 февраля 2019 г.
Аннотация:Arc welding operations are considered to be risky procedures by generating hazardous welding
fume for human health. This study focuses on the key characteristics, as well as dispersion models,
of welding fumes within a work zone. Commercial and widely used types of electrodes with various
types of covering (rutile, basic, acidic and rutile-cellulose) were used in a series of experiments on arc
welding operations, under 100 and 150 amps of electric current. According to the results of this study,
maximum levels of pollution with particles of PM10 fraction occur in the workspace during arc welding
operations. Disregarding the types of electrodes used, the 3D models of dispersion of the РМ10 particles
at the foor plane exhibit corrugated morphologies while also demonstrate high concentrations of
the РМ10 particles at distances 0–3m and 4–5m from the emission source. The morphology of these
particles is represented by solid and hollow spheres, ‘nucleus-shell’ structures, perforated spheres,
sharp-edged plates, agglomerates of the tree-like (coral) shape. At last the bifractional mechanism of
fume particle formation for this type of electrodes is also shown and described. In this article results are
reported, which demonstrate the hazards of the arc welding process for human health. The results of
the characterization of WFs reported improve our understanding of risks that these operations pose to
human health and may strengthen the need for their control and mitigation.