The Paton Welding Journal, 2023, №07



2023 №07 (04)

DOI of Article 10.37434/tpwj2023.07.05

2023 №07 (06)

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The Paton Welding Journal, 2023, #7, 37-42 pages

Technologies for producing low-hydrogen fused fluxes

I.O. Goncharov, V.V. Holovko, A.P. Paltsevych, A.M. Duchenko

E.O. Paton Electric Welding Institute of the NAS of Ukraine 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: office@paton.kiev.ua

Abstract
The influence of the technology of producing welding fluxes on the content of hydrogen in them and nature of its thermal desorption was investigated. From the fluxes produced by the method of duplex process (sequentially operating gas flame and electric arc furnace), hydrogen is mainly removed at temperatures to 600 °С. It was established that the content of diffusion hydrogen in the deposited metal in welding under the fused fluxes, produced by the method of duplex process, is approximately by 30 % lower compared to fluxes produced in gas-flame furnaces. The use of fused semi-products in the composition of a charge while producing agglomerated fluxes was proposed. 12 Ref., 3 Tabl., 2 Fig.
Keywords: hydrogen, automatic arc welding under the fused fluxes

Received: 19.06.2023
Accepted: 06.09.2023

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