1U sage Practice ofSierra Leone Iron O re in the Production ofJ inan SteelWANG Liangzhou, DUAN Lei, HAN Kefeng, LI Xuefu1-22SmeltingPracticeofHighA luminum OreinLaiwuSteel’s1000m3BFZHANG Ming, JI Guanggang, ZHANG Junbin, CHEN Yanhui, CHEN wei3-4,73Industrial Experiment of 600M Pa Grade Automobile Wheel SteelSONG Zhenguan, XIA Maosen, ZHANG Lei5-74Development and Application of Intelligence Argon Blowing Technology for 90t LF/VD Refining Ladlein Laiwu SteelZHANG Fei, CHEN Liang, FENG Nian8-95Practice ofIm proving the ProductQ uality ofSm allA lloy SteelB arLI Xiufeng10-11,136D iscussion aboutthePassD esign forElectrodeFlatSteelLIU Baofeng, WANG Zuocheng12-137D eterm ination ofM ining M ethodsand Stope Structure Param etersfor Near-su rface Iron D ep ositXING Zhaochao, BU Xiangcai14-15,178Application of Deep-hole Blasting Method for Driving Raiserock hole in Lunan MiningGENG Ke, JIANG Dinghai, MU Jincheng16-179Reform ing on H ydraulicD riving System fortheNarrow SidesofM oldBAI Guangmin18-18,2110Coking Research for Blending with Datong Yungang Weak Caking CoalCHONG Zhenyu, DONG Xiaochun, LIU Jianxun19-2111H ydraulicM odelExperim entand A nalysison Retention ofBF SlagLUO Xiaguang, GUO Dong, WANG Yanping, ZHOU Xiaohui, ZHANG Ying22-2412K eyParameterOptimizationofLaminarCoolingSystem of1700mm Hot T andem M ills in J inan S teelSHAN Xiuying, GUO Lianji, GUO Liping, CHANG Dayong25-27,3013Effect of Intercritical Annealing Time on the Microstructure and Properties of Cold-rolled Dual-phase SteelTIAN Chao, MA Shicheng28-3014R esearch ofIntegrating T echnique for H igh Efficiency Production Process of C lean S teelCHENG Xiaolong31-33,3615Influence of Different Heat Treatment Process on the Microstructure and Properties of 12Cr2Mo1R SteelJIANG Shanyu34-3616Study on the Deformation Resistance of 12Cr2Mo1R SteelXIA Maosen37-38,4317Calculation and Simulation of the Position Relation between the Tilting Part and Dip Angle of Tilting WagonSUN Debiao, MA Xuedong39-4018Determination of CaO, MgO and SiO2 in Carbon-magnesia Pellet Composite Deoxidizing and Desulfurizing AgentCAO Yuhong, GAO Zhuocheng, WANG Huiqing, LIU Chunyang41-4319Determination of the Iron in Iron-calcium Cored Wire by Potassium Dichromate Titration MethodWU Ziliang, LI Shujin, SU Jiaxin, YIN Ruixia, QI Lixia44-4520M easuresofIm proving the Y ield ofIndustrialNaphthalene in J inan Steel’s C hem icalP lantLI Weizhong, ZHU Yangyong, NING Shuqing, WEN Xili, ZHANG Feng46-47 