The influence of electrode coating type on key parameters of PM10 fraction of the welding aerosol

Kirichenko, Konstantin; Kazarin, O. A.; Gridasov, A. V.; Kosyanov, D.Yu.; Карабцов, А. А.; Golokhvast, Kirill S.

doi:10.1063/1.4998090

Cited by 3 publications

(3 citation statements)

References 4 publications

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“…Particles up to 10 μm and more are retained on the surface of the bronchial tree mucosa, while small solid particles (up to 5 μm) penetrate much deeper. While passing through the alveoli membranes, small-sized particles can get into blood which is of the utmost danger [13][14][15][16]. When passing from one medium to another, heavy metals can change their chemical structure and cause deficiency of essential elements replacing them in metal-containing protein structures.…”

Section: Introductionmentioning

confidence: 99%

Assessment of negative influence of manganese in welding fumes on welder's health and ways to reduce it

Il’yaschenko¹,

Chinakhov²,

Chinakhova³

et al. 2020

FME Transactions

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The article presents the results of a theoretical study (literature review of publications), which allowed to establish the negative impact of welding aerosol (manganese and other elements) on the human body: you can use special welder protection equipment (ventilation and individual welder protection); reduce the quantitative and qualitative content of manganese welding aerosols (welding technology, power sources, modern welding materials); reduce the content of manganese in the human body, removing it with medicines. Experimental studies have shown that the use of an inverter power source, compared with a diode rectifier, contributes: to ensuring the drop-by-drop transfer of electrode metal to reduce the time of their formation by 46% and the transition by 28%; ensures the transition of alloying elements from welding materials to the weld metal by 6% and reduces its losses from the fusion line by 6% and HAZ by 3%; to reduce the intensity of education (g / min) SA and their components by 23%; to reduce the specific allocation of CA and their components by 23%.

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Section: Introductionmentioning

confidence: 99%

Assessment of negative influence of manganese in welding fumes on welder's health and ways to reduce it

Il’yaschenko¹,

Chinakhov²,

Chinakhova³

et al. 2020

FME Transactions

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show abstract

“…It is of burning importance to further enhance accuracy in methods which assess the impact of dynamic properties of power supply equipment with various forms of energy conversion on a consumable electrode welding stability and quality. Literature review [1][2][3][4][5][6][7][8][9][10][11] confirms that objectives, aimed at improving critical (in terms of extreme work and low temperatures) metal structures reliability, demand innovative approaches, i.e. :…”

Section: Introductionmentioning

confidence: 99%

“…The first method, in case of a shielded manual arc welding, cannot be used in production quantities, as soon as it is rather difficult to introduce nano powder components into a weld pool [5][6][7][8]. Also, it is necessary to take into account a negative impact nano powders produce on welders [9][10][11][12][13], which is a constraining factor to the wide use of these components in welding. This also causes difficulties when registering them in an authorized catalogues of welding materials of such important oil and gas companies as ExxonMobil (USA), Sinopec (China), Royal Dutch Shell (Netherlands), and Gazprom (Russia).…”

Section: Introductionmentioning

confidence: 99%

How Dynamic Properties of Inverters Influence Electrode Metal Transfer to the Weld Pool, and Change Structural and Phase Composition of Welded Joints Produced via High Alloyed Electrodes

Il’yaschenko

Chinakhov

Mamadaliev³

et al. 2018

MSF

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Covered-electrode arc welding has been currently widely-spread in assembly and maintenance technologies, as soon as it is a reliable tool, which helps get safe permanent joints in critical structural systems applied in Arctic. It is of burning importance to further enhance accuracy in methods which assess the impact of dynamic properties of power supply equipment with various forms of energy conversion on a consumable electrode welding stability and quality. Literature review [1–11] confirms that objectives, aimed at improving critical (in terms of extreme work and low temperatures) metal structures reliability, demand innovative approaches, i.e.:

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Features of fume distribution in the working zone during arc welding operations with various covered electrodes

Kirichenko,

Stratidakis,

Kholodov

et al. 2024

Preprint

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Particles in welding fumes (WFs) generated through arc welding operations pose serious health concerns to the welders through their exposure to heavy metals. In this study, the influence of different covering types of industrial electrodes (rutile, basic, acid, rutile-cellulose) on the particle size distribution, morphology, and elemental composition of particles of welding fumes was investigated. Quantitative analysis was conducted in order to determine the distribution of particles with diameters of 10μm, or less, (PM10 fraction) of the WFs within the workplace, followed by the comparison of the results with the current international normative documents on the maximum permissible concentration of the PM10 fraction in the working zone air. The most hazardous types of electrode coverings were determined based on the dispersion, chemical composition, and concentration of formed particles of the PM10 fraction in space and time. The dependence of the particle size distribution time of the WFs in the working zone was identified for a basic covered industrial electrode. The maximum sizes of WF particles were reported for operations held at 100 A with electrodes having the rutile-cellulose type of covering, and at 150 A having the basic type of covering. A concentration of 0.05 mg/m3 for the PM10 fraction of WFs in the workplace was achieved after 1 hour of the welding machine operation at a current equal to 100 A. Thus, the results of the characterization of WFs demonstrate the risks of the arc welding process to human health and stress the need for their control and mitigation. According to the results of the study, a proportional relationship between the average particle diameter and the WF particle distribution period in the workplace has been demonstrated, which has been particularly evident from the height of the WF particles. 3D modeling of the dispersion of WF particles during welding arc operations proved to be a suitable method for their characterization.

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The influence of electrode coating type on key parameters of PM10 fraction of the welding aerosol

Cited by 3 publications

References 4 publications

Assessment of negative influence of manganese in welding fumes on welder's health and ways to reduce it

Assessment of negative influence of manganese in welding fumes on welder's health and ways to reduce it

How Dynamic Properties of Inverters Influence Electrode Metal Transfer to the Weld Pool, and Change Structural and Phase Composition of Welded Joints Produced via High Alloyed Electrodes

Features of fume distribution in the working zone during arc welding operations with various covered electrodes

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