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| Analysis and Control of Strip Wedge in 2250 Conventional Continuous Hot Rolling |
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Abstract This study focused on the product section wedge of one wide strip conventional hot continuous rolling in China. Through finite element method, it established static simulation model, calculated the quantitative effect of work piece deviation and incoming wedge inherit on strip section wedge value at the outlet of hot continuous mill, and validated the calculation result with the practical production data. The author optimized alignment accuracy and opening gap margin of finish vertical rolling and side guide to enhance the alignment during the course of rolling, and also used rough rolling strong side guide, optimized rough rolling roller contour and advanced manual leveling control to improve the incoming wedge of rough rolling; consequently it reduced the 3rd grade shape products rate, that was caused by wedge in the hot continuous mill, from 47% to 10%.
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Received: 08 November 2011
Published: 05 September 2012
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2012, Vol. 47 
