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ISSN 2227-6858
English version IS Bulletin Archive 2017. N 3/32


CONSTRUCTION
Environmental Safety of Construction

DOI.org/10.5281/zenodo.897017

Kirichenko K., Kosyanov D., Drozd V., Gridasov A., Matokhin G., Samsonov A., Savchenko V., Kulesh V., Karabtsov A., Agoshkov A., Golokhvast K.

KONSTANTIN KIRICHENKO, Postgraduate, Leading Specialist, e-mail: Kirichenko2012@gmail.com
DENIS KOSYANOV, Scientific Employee of the Department of Theoretical and Experimental Physics, e-mail: kosianov.diu@dvfu.ru
VALERIY SAVCHENKO, Doctor of Physical and Mathematical Sciences, Professor of the Department of General Physics, e-mail: savchenko.vn@dvfu.ru
School of Natural Sciences, Far Eastern Federal University
VLADIMIR DROZD, Postgraduate, Research Fellow, e-mail: v_drozd@mail.ru
ALEXANDER GRIDASOV, Candidate of Technical Sciences, Head of the Department of Welding Production, e-mail: gridasov.av@dvfu.ru
GENNADIY MATOKHIN, Doctor of Technical Sciences, Professor of the Department of Welding, e-mail: matohin@bk.ru
ANATOLIY SAMSONOV, Doctor of Technical Sciences, Professor of the Department of Ship Power Engineering and Automation, e-mail: aicam@mail.ru
VICTOR KULESH, Doctor of Technical Sciences, Professor of the Department of Shipbuilding and Ocean Engineering, e-mail: vkulesh@mail.ru
ALEXANDER AGOSHKOV, Doctor of Technical Sciences, Professor, Head of the Department of Life Safety in the Technosphere, e-mail:  bgdtsdvfu@mail.ru
KIRILL GOLOKHVAST, Doctor of Biology, Professor of the Department of Health and Safety in the Technosphere, e-mail: droopy@mail.ru
School of Engineering, Far Eastern Federal University
8 Sukhanova St., Vladivostok, Russia, 690091
ALEXANDER KARABTSOV, Head of Laboratory, e-mail: e-mail: karabzov@fegi.ru
Far East Geological Institute, Far Eastern Branch, Russian Academy of Sciences
159 Prospekt 100-letiya, Vladivostok, Russia, 690022

The comparative analysis of particulate aerosol welding electrodes during welding with different types of coating

Abstract: A series of experiments on arc welding with commercial coated electrodes of rutile, basic, acidic and rutile-cellulose types was carried out at a current strength of I = 100 and 150 A. The features of the propagation of welding smoke particles in the working area space are revealed, and the types of geometry of the 3D models of their propagation are proposed depending on the given process parameters. The maximum decrease (by half) of the particle size up to 0.1 μm with increasing welding current strength is typical for the burning of electrodes of the main type. For this type of electrodes, a bifractional mechanism for the formation of welding smoke particles is shown, the fine fraction of which is characterized by a high concentration of manganese-containing compounds (3rd hazard class). The scientific and practical recommendations for conducting welding operations are given.

Key words: welding aerosol, Electric voltage, welding electrodes, nanoparticles, atmospheric suspensions, morphology, toxicology, PM10.

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