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Metallurgist
Published in: Metallurgist 5-6/2014

01-09-2014

Optimizing the Rolling Conditions on a 250-2 Light-Section Mill

Authors: A. A. Umanskii, Yu. A. Mart’yanov

Published in: Metallurgist | Issue 5-6/2014

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Abstract

Tests were performed on the continuous 250-2 light-section mill at the EVRAZ ZSMK combine to study the effect of the deformation regimes on the healability of surface defects on semifinished products. It was confirmed experimentally that increasing the degree of similarity between the pass and the cross-sectional shape of the initial semifinished product increases the healability of the defects. A new pass system was developed for the rolls in the roughing-stand group of the 250-2 mill. Introduction of the new system has increased usable output 3% by reducing the incidence of rejections due to surface defects.
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Literature
1.
Yu. V. Zil’berg and S. V. Revyakin, “Change in the form of surface defects during rolling in simple passes,” Metallurg. Gornorud. Prom., No. 8, 23–25 (1996).
2.
Yu.V. Zil’berg et al., “Change in surface defects during the rolling of a tubular semifinished product made of corrosion-resistant steel,” Stal, No. 10, 33–36 (1991).
3.
G. S. Utkin et al., “Accelerating the healing of surface defects during the production of semifinished products,” Proizvod. Prokata, No. 4, 18–22 (2004).
4.
V. N. Asanov et al., “Improving the pass system of rolls used to roll rounds and rebars,” Stal, No. 11, 90–91 (2008).
5.
V. D. Egorov et al., “Healability of defects in the rolling of heavy steel sections,” Stal, No. 1, 32–34 (1995).
6.
A. A. Umanskii and Yu. A. Mart’yanov, “Modeling the processes involved in healing surface defects on semifinished products under different rolling conditions,” Vest. Gorno-Metallurg. Sek. RAEN. Otd. Metallurgii, Moscow–Novokuznetsk (2012), Iss. 30, pp. 51–58.
7.
A. A. Umanskii and Yu. A. Mart’yanov, “Developing and improving section-rolling regimes with the use of modern methods for modeling the deformation of semifinished products in passes,” Metallurgy: Technologies, Management, Innovations, Quality: Proc. All-Russ. Sci.-Techn. Conf., Novokuznetsk (2013), pp. 150–157.
Metadata
Title
Optimizing the Rolling Conditions on a 250-2 Light-Section Mill
Authors
A. A. Umanskii
Yu. A. Mart’yanov
Publication date
01-09-2014
Publisher
Springer US
Published in
Metallurgist / Issue 5-6/2014
Print ISSN: 0026-0894
Electronic ISSN: 1573-8892
DOI
https://doi.org/10.1007/s11015-014-9944-9

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