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第十届国际轧钢大会

作者： Li Xiujun~1,Zhang Xibang~2,Wei Xiao~1 (1.Steel Sheet cold Rolling Plant,Baoshan Iron & Steel Co.,Ltd.,Shanghai 200431,China 2.School of Mechanical Engineering,University of Science and Technology Beijing, Beijing 100083,China)

＜正＞The DR material has its characteristics such as very thin specification,strong intensity, high flatness and surface *** has produced with the double cold reduction（DCR） technology for several years in *** this paper,we present the slicing water and cooling synthesis control object function and establish a set of coolant spray synthesis control model,which has been applied in the productive practice of Baosteel DCR *** makes the coolant supply of mill not only satisfy the request of slicing water to assure surface quality of strip steel but also get effective cooling to assure flatness quality of strip steel,and it gets substantial economic return and has further extend application value.

关键词： double cold reduction slicing water cooling flatness

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Design and Engineering Application of Direct Mixing Lubrication System for Emulsion Pipeline in Secondary cold Rolling Mill

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Mechanical Engineering Science 2020年第1期2卷 36-47页

作者： Hangzhe DONG Yazhen ZHANG Wantong HU Zhen-hua BAI Yan-yan ZHANG National Engineering Research Center for Equipment and Technology of cold Strip Rolling Yanshan UniversityYanshan UniversityQinhuangdaoChina State Key Laboratory of Metastable Materials Science and Technology Yanshan UniversityQinhuangdaoChina

With the benefit fierce competition in the steel industry market in recent years,double cold reduction products have been developed towards strength improvement and thickness *** traditional cold-rolling lubrication process with a fixed flow rate and concentration cannot solve the problems,which are uncontrollable plate shape and the excessive consumption of lubricating ***,based on the analysis of the traditional direct aplication lubrication system of double cold reduction mill,a set of design scheme suitable for the emulsion pipeline direct mixing lubrication system of double cold reduction mill unit was *** design completed the selection of key components,which included the static mixer and atomization nozzle selection,pump and oil pump design selection,pipeline design selection,flow type selection,pressure gauge selection,electronic control cabinet design selection and other eight *** of the emulsion pipeline direct mixing lubrication system of double cold reduction has been *** with characteristics of the traditional direct aplication lubrication system,the emulsion pipeline direct mixing lubrication system was better applied to the production practice of a 1220 double cold reduction *** consumption of ton of steel was reduced by 9.6%.The rolling energy consumption and fuel consumption comprehensive costs decreased by 10.7%,and the strip steel section thickness difference was reduced by 19.3%.In addition,the plate shape quality defect rate decreased by 25.6%,otherwise creating a large economic benefit for the unit and promoting the application value.

关键词： double cold reduction emulsion direct mixing lubrication system static mixer plate thickness

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