TY - JOUR

T1 - Morphological Analysis of Methods to Recover Operability of Steel Rolls in Sheet Mills

AU - Sokolov, P. B.

AU - Muravieva, A. V.

PY - 2022/8/1

Y1 - 2022/8/1

N2 - One of the possible ways to improve the efficiency of mill rolls is to recover their operability based on the latest technologies. The well-known methods include: CPC (Japanese method of liquid metal surfacing), Spray (English–American technology of liquid metal spraying onto a heated axle), HIP (hot isostatic pressing of powders onto a forged axle), LM ESS (liquid metal electroslag surfacing), and sleeving. On the basis of morphological analysis, the sleeving method was chosen as the most reasonable to recover the operability of steel rolls in sheet mills. Fundamentally new designs of sleeved rolls were developed considering the current requirements. They eliminate circumferential and axial displacement of the sleev relative to the roll arbor, even with minimum tightness. The Ural Machine Building Plant PJSC (PAO Uralmashzavod) restored decommissioned backup rolls of a VIZ-Steel LLC (OOO VIZ-Stal) 1300 cold rolling mill and a Novolipetsk Iron and Steel Works PJSC (PAO NLMK) 1400 cold rolling mill. The successful operation of sleeved rolls in heavily loaded 1300 and 1400 cold rolling mills confirmed the proposed design and engineering solutions to be correct. © 2022, Allerton Press, Inc.

AB - One of the possible ways to improve the efficiency of mill rolls is to recover their operability based on the latest technologies. The well-known methods include: CPC (Japanese method of liquid metal surfacing), Spray (English–American technology of liquid metal spraying onto a heated axle), HIP (hot isostatic pressing of powders onto a forged axle), LM ESS (liquid metal electroslag surfacing), and sleeving. On the basis of morphological analysis, the sleeving method was chosen as the most reasonable to recover the operability of steel rolls in sheet mills. Fundamentally new designs of sleeved rolls were developed considering the current requirements. They eliminate circumferential and axial displacement of the sleev relative to the roll arbor, even with minimum tightness. The Ural Machine Building Plant PJSC (PAO Uralmashzavod) restored decommissioned backup rolls of a VIZ-Steel LLC (OOO VIZ-Stal) 1300 cold rolling mill and a Novolipetsk Iron and Steel Works PJSC (PAO NLMK) 1400 cold rolling mill. The successful operation of sleeved rolls in heavily loaded 1300 and 1400 cold rolling mills confirmed the proposed design and engineering solutions to be correct. © 2022, Allerton Press, Inc.

UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85144329901

U2 - 10.3103/S0967091222080149

DO - 10.3103/S0967091222080149

M3 - Article

VL - 52

SP - 783

EP - 788

JO - Steel in Translation

JF - Steel in Translation

SN - 0967-0912

IS - 8

ER -