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| Application of Roll Contour Shifting Roll and Bending Roll for Shape Control |
| YU Bin1, WANG Yi-dong2, YANG Xu1, GUO Bao-an1, HE An-rui3, LIU Hong-min4 |
1. Anshan Iron and Steel Company Bayuquan Subsidiary Company， Yingkou 115007， Liaoning， China
2. Anshan Iron and Steel Company， Anshan 114001， Liaoning， China
3. National Engineering Research Center for Advanced Rolling Technology， University of Science and Technology Beijing， Beijing 100083， China
4. Institute of Mechanical Engineering, Yanshan University， Qinhuangdao 066004， Hebei， China |
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Abstract According to the shape control theory and actual working condition, the type configuration of a 1580 mm hot-rolled finishing mill train was researched. Roll contour of back-up roll and work roll with the type adaptation was developed based on the middle bending force, which expanded the adjustment ability of bending force on roll gap, and technology system of shifting roll matching work roll contour was established, which formed the combined control technology of sine curve work roll+VCR back-up roll, long stroke shifting roll and strong bending roll. The production practice showed that long stroke WRS technology discretized the roll thermal deformation and made the work roll wear curve flat and smooth, and combining roll contour and bending roll technology can keep normal bearing roll gap shape, which achieved good control of shape and profile of hot-rolled strip.
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Received: 15 April 2014
Published: 02 November 2014
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2014, Vol. 49 
