Influence of the Reduction in the First Matched Groove Pair of a Three-High Stand on Billet Damage
- Authors: Smirnov E.N.1, Smirnov A.N.2, Sklyar V.A.1, Mikheev V.V.3, Belevitin V.A.4, Pivovarov R.E.1
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Affiliations:
- Stary Oskol Institute, Moscow Institute of Steel and Alloys
- Physicotechnical Institute of Metals and Alloys, Ukrainian Academy of Sciences
- PAO Donetskii Metalloprokatnyi Zavod (DMZ)
- South Ural State Humanitarian and Pedagogical University
- Issue: Vol 49, No 5 (2019)
- Pages: 332-338
- Section: Article
- URL: https://journals.rcsi.science/0967-0912/article/view/180584
- DOI: https://doi.org/10.3103/S0967091219050139
- ID: 180584
Cite item
Abstract
The influence of the one-time reduction in the first pair of matched grooves in a three-high stand on the cracking at the end of the billet is simulated. The traditional six-pass procedure in the three-high stand is compared with the new six-pass procedure and the eight-pass procedure proposed in the present work. The comparison shows that, by milder reduction in the first pair of matched grooves, the effective stress may be decreased, along with the likelihood of cracking at the end of the billet. The damage at the ends of the multiple billets in the three-high roughing stand may be minimized by means of further decrease in deformation in the first passes on rolling multiple continuous-cast billets made of high-quality structural steel, along with decrease in the initial rolling temperature and division of the billet into measured lengths on a band saw.
About the authors
E. N. Smirnov
Stary Oskol Institute, Moscow Institute of Steel and Alloys
Email: stalevoz@i.ua
Russian Federation, Stary Oskol
A. N. Smirnov
Physicotechnical Institute of Metals and Alloys, Ukrainian Academy of Sciences
Author for correspondence.
Email: stalevoz@i.ua
Ukraine, Kiev
V. A. Sklyar
Stary Oskol Institute, Moscow Institute of Steel and Alloys
Email: stalevoz@i.ua
Russian Federation, Stary Oskol
V. V. Mikheev
PAO Donetskii Metalloprokatnyi Zavod (DMZ)
Email: stalevoz@i.ua
Russian Federation, Donetsk
V. A. Belevitin
South Ural State Humanitarian and Pedagogical University
Email: stalevoz@i.ua
Russian Federation, Chelyabinsk
R. E. Pivovarov
Stary Oskol Institute, Moscow Institute of Steel and Alloys
Email: stalevoz@i.ua
Russian Federation, Stary Oskol