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《Baosteel Technology》 2006-04
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Failure Analysis and Improvement of a Removing Scale Roll Unit for the Cold Pickling Line

Li Wenyi(Cold Rolling Plant,Baosteel Branch,Shanghai 200941,China)  
In Baosteel Branch's 2030mm Cold Rolling Plant,there is a removing scale unit for improvement of pickling effect close to the pay-off reels of the pickling line.Since it was put into use,the unit has not been in proper use because the strip came off from the line seriously where it met the removing scale roll and the strip tense fluctuated badly.Through analyzing the effect of the synchronous axis rigidity and the closed-loop control mode,some improvements such as changing the roll's screwdown control,enhancing the removing scale roll's mechanical rigidity,and raising the response rate of the hydraulic system,have been advanced.After implementation of the above measures,the problem of the strip deviation has been solved,the pickling line's efficiency improved greatly,the process speed increased by 8%,and the capacity expanded correspondingly.
【CateGory Index】: TG333
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 Zhou Jiangang Ren Xueping(Neimenggu Science and Technology University);Dynamic Study on Main Drive System of Hot Continuous Strip Mill[J];Angang Technology;2007-01
2 Kong Shunfu (Maanshan Iron & Steel Co. Ltd.);The Revamping Project of Medium-plate Shear and Its Result[J];Anhui Metallurgy;2005-01
3 ZHANG Xiao-jun,XU Ze-ning(School of Mechanical Engineering and Automation,Anshan University of Science and Technology,Anshan 114044,China);Design of F 400 NC flying saw[J];Journal of Anshan University of Science and Technology;2006-02
4 AI Hou-Zhuang~1,ZHANG De-chen~2,TANG Han~3,LI Jiu-hui~2(1.The Cold Rolling Strip Mill,BenXi Iron & Steel(Group) Co Ltd,Benxi 117021,China;2.School of Mechanical Engineering,University of Science and Technology Liaoning,Anshan 114051,China;3.Angang Intyrpaise Company of Civif Adminix Trion,Anshan 114001,China);Investigation of dynamic characteristics for 1700 four rollers strip mill[J];Journal of Anshan University of Science and Technology;2006-05
5 WU Guo-yan1,LUO Ying-yan2,LI Xin2,ZHANG De-chen2,WANG Yan-guo2 (1.Anling Iron & Steel Co Ltd,Angang Group,Chaoyang 122500,China;2.School of Mechanical Engineering,University of Science and Technology Liaoning,Anshan 114051,China);Analysis of ruggedness rigidity and vibration for 2150 hot tandem mill frame[J];Journal of University of Science and Technology Liaoning;2008-06
6 ZHENG Wen-guang,XU Ze-ning,HU Su-ying(School of Mechanical Engineering and Automation,University of Science and Technology Liaoning,Anshan 114051,China);Research and application of packing steel strips rewinding with PLC[J];Journal of University of Science and Technology Liaoning;2009-02
7 Chen Dahong (East China Institue of Metallurgy)Wang Fuyuan Zhao Zhouli (Baoshan Iron & Steel(Group)Corporation);Brittle Fracture Assessment for Universal Coupling of 1300mm Blooming Mill[J];Bao Steel Technology;1996-02
8 XIONG Jie (Baosteel Equipment Department,Shanghai China,201900);Mechanical Analysis of Clamping-force in Tube Cutting[J];Bao Steel Technology;2003-05
9 LI Wen-yi(Baosteel Cold Rolling Mill,Shanghai 200941,China);Cause Analysis and Improvement of Cold Strip's Trimmed Waves[J];Bao Steel Technology;2004-04
10 Liao Yongfeng,Jiang Guangbiao(Hot Strip Rolling Plant,Baosteel Branch,Shanghai 200941,China);Study on Power of Coilers in Baosteel No.3 Hot Strip Rolling Mill[J];Baosteel Technology;2006-04
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