Prediction of filling factor and charge density of self-shielding flux-cored wire with variable composition

Keywords

self-shielded flux cored wire, fusion, fill factor, exothermic addition.

Cite as

Trembach B. O., Hlushkova D. B., Hvozdetskyi V. M., Vynar V. A., Zakiev V. I., Kabatskyi O. V., Savenok D. B., and Zakavorotnyi O. Yu. Prediction of filling factor and charge density of self-shielding flux-cored wire with variable composition. Physicochemical Mechanics of Materials. 2023. 59(1), 22-29.

https://doi.org/10.15407/pcmm2023.01.022

Abstract

The use of exothermic addition (EA) as a filler core component in a flux-cored wire is a promising way to improve the welding and technological characteristics of welded joints. The mathematical models to determine the core filler density and the filling factor, which depend on the EA content, the ratio of graphite and oxidizer of the EA (CuO/C) and the ratio of the oxidizer to the reducing agent in the composition of the EA (CuO/Al) are built. It is found that the investigated fusion modes depend most of all on such parameters: EA =
= 26-28 mass%, CuO/C = 4-4.5 and CuO/Al = 4.5-5.25.

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