OBRABOTKAMETALLOV Vol. 25 No. 4 2023 technology 400A/37 V produced lowest longitudinal strain and an unsatisfactory weld root formation. The best welding parameters are 450 A/27 V (1,350 kJ/mm) that will form a good bead both on the face and root to meet GOST 8713-79-S4 and minimize the residual strain of the welded component. 3. It is found that a higher arc voltage results in a larger root bead width and has little effect on the weld cap width. In contrast, a higher welding current increases the weld cap width and has no effect on the root bead width. The selected welding parameters range of 400–600 A and 25–40 V has no effect on the weld cap height, but a substantial effect on the root bead height. It is determined the best welding parameters for butt welds of a 5 mm thick mild steel sheet to achieve the normal weld size as required by GOST 8713-79-S4, that is, a travel speed of 54 cm/min, a welding current of 550 A, and an arc voltage of 30 V. References 1. Verkhoturov A.D., Babenko E.G., Makienko V.M. Metodologiya sozdaniya svarochnykh materialov [Methodology of creation of welding materials]. Khabarovsk, Far Eastern State Transport University Publ., 2009. 128 p. ISBN 978-5-262-00458-4. 2. Sviridova T.V., Bobrova O.B., Peryatinsky A.Yu., Nekerov E.A. Evaluation of the influence of slag heaps on the state of the urban residential area. IOP Conference Series: Materials Science and Engineering, 2019, vol. 537 (6). DOI: 10.1088/1757-899X/537/6/062009. 3. Khamatova A.R., Khohryakov O.V. Elektrostaleplavil’nyi shlak OAO «Izhstal’» dlya tsementov nizkoi vodopotrebnosti i betonov na ikh osnove [The electro-steel-smelting slag JSC “Izhstal” for cements of low water demand and concrete on their basis]. Izvestiya Kazanskogo gosudarstvennogo arkhitekturno-stroitel’nogo universiteta = News KSUAE, 2016, no. 2 (36), pp. 221–227. 4. Tsakiridis P.E., Papadimitriou G.D., Tsivilis S., Koroneos C. Utilization of steel slag for Portland cement clinker production. Journal of Hazardous Materials, 2008, vol. 152 (2), pp. 805–811. DOI: 10.1016/j.jhazmat.2007.07.093. 5. Wu Chzhan. Mixed slag smelting reduction production and thermal refining method. Patent of China, no. 201610570916, 2018. 6. Albuquerque Contrucci М., Marcheze E.S. Method for the use of electric steel plant slag for self-reducing agglomerates. Patent US, no. 6391086, 2002. 7. Krofchak D. Method of making cement or mine backfill from base metal smelter slag. Patent US, no. 6033467, 2000. 8. Edlinger A. Method of manufacturing pig iron or steel and cement clinker from slags. Patent US, no. 5944870, 2016. 9. Song Q., Shen B., Zhou Z. Effect of blast furnace slag and steel slag on cement strength, pore structure and autoclave expansion. Advanced Materials Research, 2011, vol. 168–170, pp. 17–20. DOI: 10.4028/www.scientific. net/AMR.168-170.17. 10. Skaf M., Manso M.J., Aragon A., Fuente-Alonso J.A., Ortega-López V. EAF slag in asphalt mixes: A brief review of its possible re-use. Resources, Conservation and Recycling, 2017, vol. 120, pp. 176–185. DOI: 10.1016/j. resconrec.2016.12.009. 11. Yung V.N., Butt Yu.M., Zhuravlev V.F., Okorokov S.D. Tekhnologiya vyazhushchikh veshchestv [Technology of binders]. Moscow, Gosstroiizdat Publ., 1952. 600 p. 12. Laskorin B.N., Gromov B.V., Tsygankov A.P., Senin V.N. Problemy razvitiya bezotkhodnykh proizvodstv [Problems of development of waste-free production]. Moscow, Stroiizdat Publ., 1981. 207 p. 13. Bakhmatov P.V., Startsev E.A., Grigor’ev V.V., Bryanskii A.A. Scrap deficit problem at the Amurstal metallurgical plant and search for alternatives to substitute it. Metallurgist, 2022, vol. 66 (3), pp. 376–382. DOI: 10.1007/s11015-022-01339-6. 14. Belskii S.S., Zaitseva A.A., Tyutrin A.A., Ismoilov Z.Z., Baranov A.N., Sokolnikova Yu.V. Current state of steelmaking slag processing. iPolytech Journal, 2021, vol. 25 (6), pp. 782–794. DOI: 10.21285/1814-3520-2021-6782-794. 15. ITS 26–2017. Informatsionno-tekhnicheskii spravochnik po nailuchshim dostupnym tekhnologiyam. Proizvodstvo chuguna, stali i ferrosplavov [ITS 26-2017. Information and technical guide to the best available technologies. Production of pig iron, steel and ferroalloys]. Moscow, Byuro NTD Publ., 2017. 478 p.
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