1Study on the BF Burden Design Using the Sinter with High Sierra Leone OreLIU Xueyan, WANG Jun, LI Binglai1-32Practice of Improving the Accuracy of Burn-through Control for 265 m2 Sinter in Laiwu SteelXU Chunling, ZHANG Jingxian, MAO Youzhuang, BI Xincheng, LIU Jianfeng4-53Practice of Decreasing the FeO Content in Pellets in Shougang JingtangLI Ming6-74Application Practice of Melting Operation Mode of Combined Blowing Converter of 120 TonsLü Anming, LIU Li8-95Development of 200 mm Ultra-thick Plate Q235B in Laiwu SteelGAO Lifu10-11,166Cause Analysis and Improvement of the Thickness Fluctuation in Rolling Thin Strip (SPCC)YAO Changxin, ZHA Kai, WU Dongmei12-13,167Development and Production Practice of Hot Rolled Wire ER50-6 Welding SteelYU Rong, ZUO Maofang, ZHOU Mingjun, XIE Hongwei, HE Lu14-168Development of Rolling Process for HRBF400 Fine Grained Steel RebarZHAO Dongji, HOU Jianwei, YUAN Xiangkun, YAN Chaonan, ZHANG Wentao17-189Technology of Smelting Nitrogen Alloyed Austenitic Valve SteelLI Daoqian, LIU Yuting, WANG Lei, MA Zhonggang, GUO Jianting19-2010Analysis and Prevention of the Scale in Bayer Precipitation TanksZHOU Dingfang, ZHAO Yu, XU Liangzhen21-23,2611Application of Mechanized Panel Downward Slicing Drift Cut-and-fill Stoping in Mazhuang Iron OreMA Yuanlei24-2612Cause Analysis of Nozzle Blocking in Producing Ti-IF Steel by ASP Technology and Process OptimizationZHANG Lei27-29,3413Application Analysis of BF Bosh Gas Index and Permeability Resistance CoefficientMA Rongxia, YANG Cheng, WANG Fang30-31,3414Optimization and Selection of the Developing Schemes for Enlargement and Expansion in an Iron OreXI Zhufeng32-3415Effect of Cooling Process on the Microstructure and Properties of X80HD2 High Strain Pipeline SteelNIU Yanlong35-38,4416Influence of Heat Treatment Process on the Microstructure and Property of Wear-resistant Steel NM450MA Heng, MA Guangting, WANG Yuexiang39-4117Analysis of the Influence of Deformation Amount on the Mixed Grain Structure of Steel PlateYU Shuang42-4418United Determination of the TCa, CaO, CaF2, SiO2 and P in CaO Based DesulfurizerWANG Junxiu, XUE Minghao, HOU Junkun, MA Qingwen, WEI Wensheng45-4719Development and Application of Three Phase High Voltage Power Supply for Electrostatic PrecipitatorWAN Jun, YAO Yuan48-4920Transformation of 1# Main Fan High Voltage Inverter of the 400 m2 Sinter Machine in Laiwu SteelZHANG Jinkun, LI Jingye, SU Running50-51 