1Operation Practice of Laiwu Steel’s 3 200 m3 BF Unscheduled Wind offGUO Xinchao1-32Hearth Erosion Situation Analysis for the 1 750 m3 Blast Furnace in Jinan SteelZHANG Xiaowei, ZHANG Xiwei4-53Development and Application of the High-rise Buildings Steel Q420GJCZHANG Kaiguang, TONG Mingwei, CHEN Yantang, FAN Wei, ZHENG Jing6-8,104Formation Analysis of Cracks Defect of Plate EdgeWANG Nanhui9-105Development and Production of Non-oriented Electrical Steel JGW1000WANG Yong11-12,196Reason Analysis and Control of X65 Steel Plate Edge WavePANG Yixing13-147Cause Analysis and Improvement Measures for High Aluminum Content Brick CrackZHANG Chengku, LI Huiwen, SHAO Hong15-178Analysis of Two Kinds Welding Technology for Steel StructureGAO Zheng, ZHU Baocai, LIU Xiaohui, HAO Zhengwang, LIU Lei18-199Application Test and the Effect Analysis of Sierra Leone Iron-ore Fines in SinteringSUN Yanhong20-2210Research on Utilization Rate of Pulverized Coal to Blast Furnace in Laiwu SteelZHOU Xiaohui23-25,2811Study on the Weldability of Grade 500 MPa High Performance Steel Plate for BridgesZHOU Lanju, HOU Donghua, JIA Huiling, WANG Futong26-2812Cause Analysis and Treatment of Abnormal Thick Ultrasonic Measurement for Q370R Steel PlateLIU Caifeng29-30,3313Research on Normalizing Process of Q345FTE/F Steel for Wind Power Generation TowerFAN Wei, TONG Mingwei, ZHANG Kaiguang, KONG Junhua31-3314Research on High-temperature Strength and Spalling Resistance of EPC CoatingsYANG Minglei34-35,4215Application Experiment of Fly Ash Instead of Lime Milk in Bayer Process ProductionHONG Yuming36-3716Determination of Copper Content in Pure Copper by Constant Current Electrolysis Method and BCO Photometric MethodXUE Minghao, WANG Junxiu, LI Longxia, ZHANG Xiaoyan, WEI Xinhui38-3917Comprehensive Development and Utilization of Mineral Resources in Shandong Jinling Iron OreZHANG Xingwang, NIU Xuezhong, FENG Peng40-4218Production Practice of Improving the Yield of 105 m2 Sintering MachineXIONG Wei43-44,4719Low Silicon and Low Cost Smelting Practice of Jinan Steel’s BFsLIU Cunfang, LIU Delou, MENG Lingjun, AN Ming, WANG Cong45-4720Comprehensive Utilization of Blast Furnace DustYANG Fengting, ZHAO Shumin, XU Guoqing, YANG Yu48-49,51 