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| 1 | Comprehensive contour prediction model of work rolls in hot wide strip mill显示文摘The predictive calculation of comprehensive contour of work rolls in the on-line strip shape control model during hot rolling consists of two important parts of wear contour calculation and thermal contour calculation, which have a direct influence on the ac- curacy of shape control. A statistical wear model and a finite difference thermal contour model of work rolls were described. The comprehensive contour is the equivalence treatment of the sum of grinding, wear, and thermal contours. This comprehensive contour calculation model has been applied successfully in the real on-line strip shape control model. Its high precision has been proved through the large amounts of actual roll profile measurements and theoretical analyses. The hit rates (percent of shape index satisfying re- quirement) of crown and head flatness of the strips rolled, by using the shape control model, which includes the comprehensive contour calculation model, have about 16% and 10% increase respectively, compared to those of strips rolled by using manual operation. | Xiaodong Wang Quan Yang Anrui He Renzhong Wang | 2007 | Journal of University of Science and Technology Beijing2007，14，3： | 6 |
| 2 | PROFILE AND FLATNESS CONTROL SYSTEM IN 1700mm HOT STRIP MILLS OF ANSTEEL显示文摘Varying contact-length backup roll and linearly variable crown work roll are provided for improving the mill performance of profile and flatness control.Integrated with theses technologies, relevant profile and flatness control models are developed for hot strip mills on the basis of large amount of finite element calculation.These models include shape setup control model in process control system,bending force feedforward control model,crown feedback control model and flatness feedback control model in basis automation system.Such a profile and flatness control system with full functions is applied in 1700 mm industrial hot strip mills of Ansteel.Large amount of production data shows that the crown precision with the tolerance of±18μm is over 90%,the strip percentage which the actual flatness is within±25 I-unit surpasses 96%,and general roll consume is reduced by 28% by using the profile and flatness control system.In addition,schedule-free rolling is realized. | HE Anrui YANG Quan CHEN Xianlin ZHAO Lin | 2008 | Chinese Journal of Mechanical Engineering2008，21，3： | 6 |
| 3 | Thermal Behaviors of Work Roll in Finishing Trains of Hot Rolling显示文摘In order to analyze the thermal field and thermal contour of work roll in finishing trains of hot rolling in rolling process, a quasi two-dimension implicit finite difference model is developed. To improve the calculating speed and precision, some special solutions are introduced, including the development of this model, the simplification of boundary conditions and the computation of heat transfer coefficients. The results show that these solutions of thermal behaviors of work roll are very much efficient and the model can be used as an on-line profile and flatness control model of large industrial mills.. | Anrui He, Jie Zhang, Chen Zhang, Qingdong Zhang, Gangcheng Wei, Siqing Huang Mechanical Engineering School, University of Science and Technology Beijing, Beijing 100083, China Wuhan Iron and Steel Group Corporation, Wuhan 430083, China | 2001 | Journal of University of Science and Technology Beijing2001，8，1： | 2 |
| 4 | Study and application of crown feedback control in hot strip rolling显示文摘Crown feedback control is one part of the automatic shape control (ASC) system. On the basis of large simulation researches conducted, a linear crown feedback control model was put forward and applied in actual strip rolling. According to its successful operation in the ASP1700 hot strip mill of Angang Group for one year and also from the statistical results of several crown measurements, it can be definitely said that this control model is highly effective and shows stable performance. The control effectiveness of different gauges of strips with the feedback control is found to increase by 10%-30% compared with that without feedback control. | Xiaodong Wang Anrui He Quan Yang Zhi Xie Hongtao Yang | 2007 | Journal of University of Science and Technology Beijing2007，14，2： | 1 |
| 5 | Calculation of thermal stress affecting plate flatness change during run-out table cooling in hot steel plate rolling显示文摘 | WANG Xiaodong YANG Quan HE Anrui | | 0，，： | 1 |
| 6 | Calculation ofthermal stress affecting strip flatness change during run-out table cooling in hot steel strip rolling显示文摘 | Wang Xiaodong Yang Quan He Anrui | 2008 | J MaterProcess Technol2008，207，： | 1 |
| 7 | Calculation of thermal stress affecting strip flatness change during run-out table cooling in hot steel strip rolling显示文摘 | Xiaodong Wang Quan Yang Anrui He | 2007 | Journal of Materials Processing Tech2007，，1： | 1 |
| 8 | Deep learning for predictive mechanical properties of hot-rolled strip in complex manufacturing systems显示文摘Higher requirements for the accuracy of relevant models are put throughout the transformation and upgrade of the iron and steel sector to intelligent production.It has been difficult to meet the needs of the field with the usual prediction model of mechanical properties of hotrolled strip.Insufficient data and difficult parameter adjustment limit deep learning models based on multi-layer networks in practical applications;besides,the limited discrete process parameters used make it impossible to effectively depict the actual strip processing process.In order to solve these problems,this research proposed a new sampling approach for mechanical characteristics input data of hot-rolled strip based on the multi-grained cascade forest(gcForest)framework.According to the characteristics of complex process flow and abnormal sensitivity of process path and parameters to product quality in the hot-rolled strip production,a three-dimensional continuous time series process data sampling method based on time-temperature-deformation was designed.The basic information of strip steel(chemical composition and typical process parameters)is fused with the local process information collected by multi-grained scanning,so that the next link’s input has both local and global features.Furthermore,in the multi-grained scanning structure,a sub sampling scheme with a variable window was designed,so that input data with different dimensions can get output characteristics of the same dimension after passing through the multi-grained scanning structure,allowing the cascade forest structure to be trained normally.Finally,actual production data of three steel grades was used to conduct the experimental evaluation.The results revealed that the gcForest-based mechanical property prediction model outperforms the competition in terms of comprehensive performance,ease of parameter adjustment,and ability to sustain high prediction accuracy with fewer samples. | Feifei Li Anrui He Yong Song Zheng Wang Xiaoqing Xu Shiwei Zhang Yi Qiang Chao Liu | 2023 | International Journal of Minerals,Metallurgy and Materials2023，30，6： | 0 |
| 9 | Additive manufacturing of multi-morphology graded titanium scaffolds for bone implant applications显示文摘Porous Titanium scaffolds have attracted widespread attention as bone implants for avoiding the stress shielding effect and promoting bone-in-growth.In this study,multi-morphology graded scaffolds hy-bridized by Primitive and Gyroid structures with porosity of 50,60,and 70%were designed(denoted as PG50,PG60,and PG70,respectively)and fabricated by selective laser melting.The simulation results showed that the maximum von-Mises stress of hybridized scaffolds increased from 504.22 to 884.24 MPa with porosity.The permeability and average pore size of multi-morphology PG50,PG60,and PG70 were in the range of 3.58×10^(-9)-5.50×10^(-9) m^(2) and 568.1-758.4μm,respectively.The microstructure of multi-morphology graded scaffolds consisted of a fully martensiticα′phase.Tested permeabilities of PG50 and PG60 were 3.27×10^(-9) and 4.35×10^(-9) m^(2),respectively,which were within the range of human bone(0.01-12.1×10^(-9) m^(2)).Elastic modulus and compressive yield strength of PG50 and PG60 ranged within 5.93^(-9).86 and 180.06-257.08 MPa,respectively.Therein,the PG50 not only exhibited a similar elastic modulus compared to human cortical bone(10.1 GPa)but also had higher strength(257.08 vs 131 MPa).The results of in vitro biocompatibility assay showed that PG50 and PG60 have better cyto-compatibility than mono-morphology scaffolds with the same porosity.Taken together,PG50 is promising to be used for the restoration of bone defects due to its excellent mechanical properties,appropriate per-meability,and good cytocompatibility. | Aihua Yu Ce Zhang Wei Xu Yun Zhang Shiwei Tian Bowen Liu Jiazhen Zhang Anrui He Bo Su Xin Lu | 2023 | Journal of Materials Science & Technology2023，，8： | 0 |
| 10 | Strip shape control capability of hot wide strip rolling mills显示文摘The elasticity deformation of rolls was analyzed by means of two-dimensional finite element method(FEM)with vari- able thickness.Three typical mills were used as objects for analysis.A thorough study was done on the control capabilities of these mills on the strip shape.Then the strip shape control capabilities of the three mills was compared synthetically. | Renzhong Wang Quan Yang Anrui He Jian Shao Haitao Bian | 2008 | Journal of University of Science and Technology Beijing2008，15，1： | 0 |
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