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Radial-shear rolling as a new technological solution for recycling bar scrap of ferrous metals

S. N. Lezhnev, Candidate of Technical Sciences, Associate Professor, NJSC ", A. B. Naizabekov, I. E. Volokitina, E. A. Panin, E. I. Kuldeyev, Rudny Industrial Institute", , Professor of the Department. ", Metallurgy and mining", , +770117725358, sergey_legnev@mail.ru (correspondent author), Doctor of Technical Sciences, Professor, NJSC "Rudny Industrial Institute", Rector, info@rii.kz, PhD, NJSC "Rudny Industrial Institute", Associate Professor of the Department. "Metallurgy and Mining", +77012509353, irinka.vav@mail.ru (+2 others)
2021 Kompleksnoe ispolʹzovanie mineralʹnogo syrʹâ/Complex Use of Mineral Resources/Mineraldik shikisattardy Keshendi Paidalanu  

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Waste recycling of both ferrous and non-ferrous metals is a useful process for the economy of any country. This paper proposes a new technology for recycling bar scrap of ferrous metals by rolling it in radial-shear rolling mills by producing a commercial product in the form of bars with an ultrafine-grained gradient structure. Studies have shown that the deformation of bar scrap in the form of pieces of reinforcement made of steel grade 18G2S in a radial-shear rolling mill makes it possible to
more » ... significantly disperse its structure by producing a gradient ultrafine-grained structure, and this, in turn, leads to the elevating of the mechanical characteristics of this steel grade. Thus, the tensile limit of the 18G2S grade steel deformed on the radial-shear rolling mill was 620 MPa (at the initial value of 365 MPa).
doi:10.31643/2021/6445.06 fatcat:swgvqnj7szgozolj5pk4k7rofq
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S. N. Lezhnev, Candidate of Technical Sciences, Associate Professor, NJSC ", A. B. Naizabekov, I. E. Volokitina, E. A. Panin, E. I. Kuldeyev, Rudny Industrial Institute", , Professor of the Department. ", Metallurgy and mining", , +770117725358, sergey_legnev@mail.ru (correspondent author), Doctor of Technical Sciences, Professor, NJSC "Rudny Industrial Institute", Rector, info@rii.kz, PhD, NJSC "Rudny Industrial Institute", Associate Professor of the Department. "Metallurgy and Mining", +77012509353, irinka.vav@mail.ru, PhD, NJSC "Rudny Industrial Institute", Senior Researcher, +77017754616, cooper802@mail.ru, Candidate of Technical Sciences, Associate Professor, "Institute of Metallurgy and Ore Benefication" JSC, Leading Researcher. kuldeev_erzhan@mail.ru. "Radial-shear rolling as a new technological solution for recycling bar scrap of ferrous metals." Kompleksnoe ispolʹzovanie mineralʹnogo syrʹâ/Complex Use of Mineral Resources/Mineraldik shikisattardy Keshendi Paidalanu (2021) 46-52