Special features of fused welding flux granular forming in carbon steel surfacing during plasma granulation

7th International Conference for Young Scientists "High Technology: Research and Applications"

工业技术（总论）

Naumov, S.V.^1 ; Artemov, A.O.^1 ; Ignatov, M.N.^1 ; Belousov, K.I.^1

Perm National Research Polytechnic University, 29, Komsomolsky prospekt, Perm

614990, Russia^1

关键词: Alkali metal oxides;    Charge materials;    High-content;    Iron content;    Metal components;    Metal substrate;    New approaches;    Repair works;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/510/1/012013/pdf
DOI  :  10.1088/1757-899X/510/1/012013

学科分类：工业工程学

来源: IOP

【 摘 要 】

This paper proposes a qualitatively new approach for production fused welding fluxes in carbon steel surfacing based on direct-action plasma arc influence on a metal substrate and charge materials made from the Ural region raw minerals. During plasma granulation there is an intense burnout of alkali metal oxides that is compensated by the use of liquid potassium and / or sodium glass as a binder of charge materials before granulation. Forming a slag crust on granules surface resulted in iron content exceeding more than 90 wt. % in the granule center. Otherwise without the formation of a slag on granules surface the iron was oxidized and its content reached 38.42 wt. % Studies have shown that the volume of granules that are completely coated and protected by slag crust on an oxide-silicate basis, reaches up to 95%. Such welding flux granules with a high content of metal components provide high performance (deposition rate) during repair works and surfacing of products using submerged arc welding.