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- W2069822425 abstract "During the first year of production in the 2250 mm hot strip mill of Qian'an Iron and Steel Company of Shougang Steel Corporation, roll spalling and broken rolls were frequent occurrences, especially on the second stand of roughing mill (R2), and resulted in enormous economic losses. In addition, improvements to strip shape were required. One of the factors resulting in strip shape defects after finish rolling is that the transfer bar usually had an unsound profile such as a large wedge, camber or negative crown after roughing rolling. To solve these problems, a variable contact back-up roll contour curve with six order of polynomials and negative crown contour was designed and applied to the back-up roll and work roll of roughing mill stands R1 and R2 instead of a conventional flat roll contour. After the application, roll spalling, crown and wedge quality of the transfer bar and strip quality all improved." @default.
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- W2069822425 date "2010-11-01" @default.
- W2069822425 modified "2023-09-23" @default.
- W2069822425 title "VCR back-up roll and negative work roll contour design for solving roll spalling and transfer bar profile problems in hot strip mill" @default.
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- W2069822425 doi "https://doi.org/10.1179/030192310x12700328925949" @default.
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