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roll profile electromagnetic control characteristics under roll heterogeneity

Journal of Iron and Steel Research International 2022年第12期29卷 1927-1938页

作者： Ting-song Yang Yu-hang Bai Yang Hai Qi-fa Chen Feng-shan Du National Engineering Research Center for Equipment and Technology of Cold Strip rolling Yanshan UniversityQinhuangdao 066004HebeiChina College of Mechanical Engineering Yanshan UniversityQinhuangdao 066004HebeiChina

The electromagnetic control roll(ECR)and electromagnetic stick(ES)are the core elements and the main driving parts of roll profile electromagnetic control technology(RPECT).To prolong the service life,it is necessary to treat ECR and ES *** to the heterogeneous characteristics of surface treatments,the roll profile electromagnetic control characteristics were analyzed for different *** electromagnetic-thermal-force coupled axisymmetric finite element model was built to explore the differences in performance as a result of several treatment strategies,and the model was verified by experimental results measured with a roll profile electromagnetic control experimental *** model was used to analyze the influence of the heterogeneity of ECR inner hole and ES on the roll crown,the roll profile,the average contact pressure,and the stress state during RPECT *** results indicate that the heterogeneous layer at ECR inner hole has a restrictive effect on RPECT and that the heterogeneous layer of ES can enhance the profile control ability of RPECT.A reasonable configuration scheme between the heterogeneity of ECR inner hole and the ES can increase the life of ECR and maintain the control ability of RPECT.

关键词： Electromagnetic control roll Heterogeneous treatment roll crown roll profile electromagnetic control technology Electromagnetic stick

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Control of thermal crown in the roller inside the continuous annealing furnace

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Baosteel Technical Research 2009年第1期3卷 51-55页

作者： HU Guangkui Cold rolling Plant Baosteel Branch Baoshan Iron ＆ Steel Co. Ltd. Shanghai 200941 China

In a continuous annealing furnace, the hearth rollers are affected by heat, which in turn affects the stable operation of the steel strips. In order to ensure the stable operation of the steel strips the ability of the rollers to correct themselves and to prevent the steel strips from buckling, effective measures are required to control the surface crown of the rollers inside the furnace. Starting from production, this study analyzes the way in which the crown of the hearth rollers inside the continuous annealing furnace changes. The study suggests control measures to prevent buckling and and misalignment. The study definitely provides guidance to the stable operation of steel strips in continuous annealed furnaces.

关键词： hearth roller roll crown misalignment buckling

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